2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 949
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool References
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify DTC C056E is not set.
If the DTC is set, program the control module. If the DTC resets, replace the control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for control module replacement, setup, and programming
Power Steering
DTC C056E
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056E 42
- ECU Hardware Performance Calibration Data Set Not Programmed
DTC C056E 4B
- ECU Software Performance Calibration Not Learned
Circuit/System Description
After replacement of the power steering control module (PSCM), the PSCM must be configured with the proper tuning profile using the service
programming system (SPS).
After replacement of the PSCM, power steering motor, or steering gear, the steering position/torque sensor calibration procedure must be
performed.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
DTC C056E 42
This DTC will set if the PSCM has not undergone SPS programming.
DTC C056E 4B
This DTC will set if the PSCM, motor or torque sensor has not been calibrated using the steering position / torque sensor calibration procedure.
Showing posts with label * Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit. Show all posts
Showing posts with label * Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit. Show all posts
Tuesday, December 17, 2019
Monday, December 16, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 920
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 920
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Note: The battery must be able to maintain a charge during this procedure. It is recommended that a charger/maintainer or equivalent be used to
maintain proper battery voltage during this procedure.
1. Ignition ON, engine OFF, using a scan tool access the EBCM, Module Setup screen, and perform the EBCM Relearn. The relearn procedure
will verify valve and pressure sensor calibrations are correct.
Note: To ensure the complete brake modulator and high pressure accumulator pressure relief procedure is allowed to occur; the brake
controller must see one brake pedal apply with the engine running followed by a proper shutdown without applying the brake pedal.
2. Transmission in PARK, engine running, apply and release the brake pedal.
Note: The ignition must transition to the OFF position without pausing at ACCESSORY and without applying the brake pedal. This ensures
that the brake modulator and high pressure accumulator relief occurs. This process will take approximately 1-2 minutes.
3. Ignition OFF, key removed from the ignition, wait 2 minutes.
Note: The ignition must remain in the ON position with the engine OFF during the following steps.
4. Ignition ON, brake pedal released, verify the following EBCM scan tool parameters are within the specified values:
* BMC Prim. Piston Pos. Sen. 5 V Reference Position - Between 4.75-5.25 V
* BMC Primary Piston Position Sensor A - Between 0.4-0.8 V
* BMC Primary Piston Position Sensor B - Between 4.2-4.6 V
瀚慖f any of the parameters are not within the specified range, refer to Circuit/System Testing.
5. Brakes not applied, verify the following EBCM scan tool parameters are within the specified range:
* Master Cylinder Pressure Sensor Input - Less than 100 kPa (15 psi)
* Rear Brake Pressure Sensor - Less than 100 kPa (15 psi)
* Brake Pressure Sensor Input - Less than 100 kPa (15 psi)
* Accum. Pressure Sensor - Less than 800 kPa (116 psi)
瀚慖f any of the parameters are not within the specified range, replace the brake pressure modulator valve.
Circuit/System Testing
1. Perform a hydraulic check, refer to Brake Hydraulic and Assist System Diagnosis (Two-mode Hybrid) (See: Brakes and Traction
Control/Hydraulic System/Testing and Inspection/Component Tests and General Diagnostics/Brake Hydraulic and Assist System Diagnosis
(Two-mode Hybrid)).
2. Ignition OFF, disconnect the harness connector at the brake master cylinder piston position sensor.
3. Ignition OFF, test for less than 5 ohm between the low reference circuit terminal 4 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the EBCM.
4. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 2 and ground.
瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,
replace the EBCM.
瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the EBCM.
5. Verify the scan tool BMC Primary Piston Position Sensor A parameter is less than 1 V.
瀚慖f greater than the specified range, test the signal circuit terminal 3 for a short to voltage. If the circuit tests normal, replace the EBCM.
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Note: The battery must be able to maintain a charge during this procedure. It is recommended that a charger/maintainer or equivalent be used to
maintain proper battery voltage during this procedure.
1. Ignition ON, engine OFF, using a scan tool access the EBCM, Module Setup screen, and perform the EBCM Relearn. The relearn procedure
will verify valve and pressure sensor calibrations are correct.
Note: To ensure the complete brake modulator and high pressure accumulator pressure relief procedure is allowed to occur; the brake
controller must see one brake pedal apply with the engine running followed by a proper shutdown without applying the brake pedal.
2. Transmission in PARK, engine running, apply and release the brake pedal.
Note: The ignition must transition to the OFF position without pausing at ACCESSORY and without applying the brake pedal. This ensures
that the brake modulator and high pressure accumulator relief occurs. This process will take approximately 1-2 minutes.
3. Ignition OFF, key removed from the ignition, wait 2 minutes.
Note: The ignition must remain in the ON position with the engine OFF during the following steps.
4. Ignition ON, brake pedal released, verify the following EBCM scan tool parameters are within the specified values:
* BMC Prim. Piston Pos. Sen. 5 V Reference Position - Between 4.75-5.25 V
* BMC Primary Piston Position Sensor A - Between 0.4-0.8 V
* BMC Primary Piston Position Sensor B - Between 4.2-4.6 V
瀚慖f any of the parameters are not within the specified range, refer to Circuit/System Testing.
5. Brakes not applied, verify the following EBCM scan tool parameters are within the specified range:
* Master Cylinder Pressure Sensor Input - Less than 100 kPa (15 psi)
* Rear Brake Pressure Sensor - Less than 100 kPa (15 psi)
* Brake Pressure Sensor Input - Less than 100 kPa (15 psi)
* Accum. Pressure Sensor - Less than 800 kPa (116 psi)
瀚慖f any of the parameters are not within the specified range, replace the brake pressure modulator valve.
Circuit/System Testing
1. Perform a hydraulic check, refer to Brake Hydraulic and Assist System Diagnosis (Two-mode Hybrid) (See: Brakes and Traction
Control/Hydraulic System/Testing and Inspection/Component Tests and General Diagnostics/Brake Hydraulic and Assist System Diagnosis
(Two-mode Hybrid)).
2. Ignition OFF, disconnect the harness connector at the brake master cylinder piston position sensor.
3. Ignition OFF, test for less than 5 ohm between the low reference circuit terminal 4 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the EBCM.
4. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 2 and ground.
瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,
replace the EBCM.
瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the EBCM.
5. Verify the scan tool BMC Primary Piston Position Sensor A parameter is less than 1 V.
瀚慖f greater than the specified range, test the signal circuit terminal 3 for a short to voltage. If the circuit tests normal, replace the EBCM.
Sunday, December 15, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 89
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 89
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
1. Verify that DTC B009F 00, B009F 4A, or B009F 73 is not set.
瀚慖f the DTC is set, program the serial data gateway module. If the DTC resets, replace the serial data gateway module.
2. Verify the serial data gateway module is programmed with the correct software calibration.
瀚慖f the correct software is not installed, program the serial data gateway module.
3. Ignition ON, observe the scan tool Hybrid Crash Sensor 1 parameter. The reading should be No Crash.
瀚慖f not No Crash, refer to Circuit/System Testing.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the high voltage circuit impact detector sensor.
2. Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 5 ohm between the low
reference circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the serial
data gateway module.
Note: The serial data gateway module will attempt to communicate with the high voltage circuit impact detector sensor for 5 seconds
immediately after the ignition is turned ON. After 5 seconds the signal circuit will be inactive.
Note: The DMM should not be set on the Auto Range scale. The Auto Range will give erratic test results.
3. Connect a DMM, set on a manual setting that can read 12 V with the MIN/MAX function enabled, between the signal circuit terminal 1 and
ground.
4. Ignition ON, wait 10 seconds, The DMM reading should be less than 1.0 V.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the serial data gateway module.
5. Verify the DMM MAX reading is greater than 6.0 V.
瀚慖f less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
serial data gateway module.
6. If all circuits test normal, test or replace the high voltage circuit impact detector sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* High Voltage Circuit Impact Detection Sensor Replacement (See: Hybrid Drive Systems/Service and Repair/Removal and
Replacement/High Voltage Circuit Impact Detection Sensor Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup,
and programming
B0010
DTC B0010
Diagnostic Instructions
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
1. Verify that DTC B009F 00, B009F 4A, or B009F 73 is not set.
瀚慖f the DTC is set, program the serial data gateway module. If the DTC resets, replace the serial data gateway module.
2. Verify the serial data gateway module is programmed with the correct software calibration.
瀚慖f the correct software is not installed, program the serial data gateway module.
3. Ignition ON, observe the scan tool Hybrid Crash Sensor 1 parameter. The reading should be No Crash.
瀚慖f not No Crash, refer to Circuit/System Testing.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the high voltage circuit impact detector sensor.
2. Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 5 ohm between the low
reference circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the serial
data gateway module.
Note: The serial data gateway module will attempt to communicate with the high voltage circuit impact detector sensor for 5 seconds
immediately after the ignition is turned ON. After 5 seconds the signal circuit will be inactive.
Note: The DMM should not be set on the Auto Range scale. The Auto Range will give erratic test results.
3. Connect a DMM, set on a manual setting that can read 12 V with the MIN/MAX function enabled, between the signal circuit terminal 1 and
ground.
4. Ignition ON, wait 10 seconds, The DMM reading should be less than 1.0 V.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the serial data gateway module.
5. Verify the DMM MAX reading is greater than 6.0 V.
瀚慖f less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
serial data gateway module.
6. If all circuits test normal, test or replace the high voltage circuit impact detector sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* High Voltage Circuit Impact Detection Sensor Replacement (See: Hybrid Drive Systems/Service and Repair/Removal and
Replacement/High Voltage Circuit Impact Detection Sensor Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup,
and programming
B0010
DTC B0010
Diagnostic Instructions
Wednesday, December 11, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 819
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 819
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C12DB
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C12DB
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 809
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 809
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C12C6
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C12C6
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
Tuesday, December 10, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 799
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 799
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C12CF
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C12CF
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 794
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 794
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
1. Using a scan tool, perform the EBCM, Module Setup, EBCM Relearn.
2. Verify that DTC C012C, C121A, C128C, C128F, C12B9, C12BA, C12BB or C12F7 is not set.
瀚慖f the DTC is set replace brake pressure modulator valve assembly. If the DTC resets, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Brake Pressure Modulator Valve Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic
Control Assembly - Antilock Brakes/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, programming and setup
C012C
DTC C012C, C121A, C128C, C128F, C12B9, C12BA, C12BB, or C12F7
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC C12F7
- ABS Boost Pressure Sensor and Regenerative Axle Pressure Sensor Not Plausible
DTC C128F
- ABS Regenerative Axle Pressure Sensor Raw Offset Error
DTC C012C 01
- Regenerative Axle Pressure Sensor Short to Battery
DTC C12BA
- ABS Regenerative Axle Pressure Sensor Circuit Short To Battery
DTC C012C 06
- Regenerative Axle Pressure Sensor Short to Ground or Open
DTC C12B9
- ABS Regenerative Axle Pressure Sensor Circuit Open or Short To Ground
DTC C012C 11
- Regenerative Axle Pressure Sensor Above Maximum Threshold
DTC C128C
- ABS Regenerative Axle Pressure Sensor Offset Error
DTC C012C 0F
- Regenerative Axle Pressure Sensor Erratic
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
1. Using a scan tool, perform the EBCM, Module Setup, EBCM Relearn.
2. Verify that DTC C012C, C121A, C128C, C128F, C12B9, C12BA, C12BB or C12F7 is not set.
瀚慖f the DTC is set replace brake pressure modulator valve assembly. If the DTC resets, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Brake Pressure Modulator Valve Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic
Control Assembly - Antilock Brakes/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, programming and setup
C012C
DTC C012C, C121A, C128C, C128F, C12B9, C12BA, C12BB, or C12F7
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC C12F7
- ABS Boost Pressure Sensor and Regenerative Axle Pressure Sensor Not Plausible
DTC C128F
- ABS Regenerative Axle Pressure Sensor Raw Offset Error
DTC C012C 01
- Regenerative Axle Pressure Sensor Short to Battery
DTC C12BA
- ABS Regenerative Axle Pressure Sensor Circuit Short To Battery
DTC C012C 06
- Regenerative Axle Pressure Sensor Short to Ground or Open
DTC C12B9
- ABS Regenerative Axle Pressure Sensor Circuit Open or Short To Ground
DTC C012C 11
- Regenerative Axle Pressure Sensor Above Maximum Threshold
DTC C128C
- ABS Regenerative Axle Pressure Sensor Offset Error
DTC C012C 0F
- Regenerative Axle Pressure Sensor Erratic
Friday, December 6, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 704
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 704
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Pedal Forward Switch and Pedal Aft Switch parameters while cycling the adjustable pedal switch between the
FWD and RWD position. The appropriate parameter should change between Active and Inactive as commanded.
Circuit/System Testing
1. Disconnect the harness connector at the adjustable pedal switch.
2. Ignition ON, test for 11.8-12.2 volts between the appropriate 12-volt reference circuit listed below and ground:
* X88/Z88 - terminal 11
* Z75 - terminal 5
瀚慖f greater than the specified range, test the 12-volt reference circuit for a short to voltage. If the circuit tests normal, replace the MSM.
瀚慖f less than the specified range, test the 12-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests
normal, replace the MSM.
3. Verify the scan tool Pedal Forward Switch parameter is Inactive.
瀚慖f not the specified value, test the appropriate signal circuit terminal listed below for a short to voltage. If the circuit tests normal, replace
the MSM.
* X88/Z88 - terminal 12
* Z75 - terminal 6
4. Verify the scan tool Pedal Aft Switch parameter is Inactive.
瀚慖f not the specified value, test the appropriate signal circuit terminal listed below for a short to voltage. If the circuit tests normal, replace
the MSM.
* X88/Z88 - terminal 10
* Z75 - terminal 4
5. Install a 3A fused jumper wire between the appropriate signal circuit terminal listed below and B+. The scan tool Pedal Forward Switch
parameter should be Active.
* X88/Z88 - terminal 12
* Z75 - terminal 6
瀚慖f not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
MSM.
6. Install a 3A fused jumper wire between the appropriate signal circuit terminal listed below and B+. The scan tool Pedal Aft Switch parameter
should be Active.
* X88/Z88 - terminal 10
* Z75 - terminal 4
瀚慖f not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
MSM.
7. If all circuits test normal, test or replace the adjustable pedal switch.
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Pedal Forward Switch and Pedal Aft Switch parameters while cycling the adjustable pedal switch between the
FWD and RWD position. The appropriate parameter should change between Active and Inactive as commanded.
Circuit/System Testing
1. Disconnect the harness connector at the adjustable pedal switch.
2. Ignition ON, test for 11.8-12.2 volts between the appropriate 12-volt reference circuit listed below and ground:
* X88/Z88 - terminal 11
* Z75 - terminal 5
瀚慖f greater than the specified range, test the 12-volt reference circuit for a short to voltage. If the circuit tests normal, replace the MSM.
瀚慖f less than the specified range, test the 12-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests
normal, replace the MSM.
3. Verify the scan tool Pedal Forward Switch parameter is Inactive.
瀚慖f not the specified value, test the appropriate signal circuit terminal listed below for a short to voltage. If the circuit tests normal, replace
the MSM.
* X88/Z88 - terminal 12
* Z75 - terminal 6
4. Verify the scan tool Pedal Aft Switch parameter is Inactive.
瀚慖f not the specified value, test the appropriate signal circuit terminal listed below for a short to voltage. If the circuit tests normal, replace
the MSM.
* X88/Z88 - terminal 10
* Z75 - terminal 4
5. Install a 3A fused jumper wire between the appropriate signal circuit terminal listed below and B+. The scan tool Pedal Forward Switch
parameter should be Active.
* X88/Z88 - terminal 12
* Z75 - terminal 6
瀚慖f not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
MSM.
6. Install a 3A fused jumper wire between the appropriate signal circuit terminal listed below and B+. The scan tool Pedal Aft Switch parameter
should be Active.
* X88/Z88 - terminal 10
* Z75 - terminal 4
瀚慖f not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
MSM.
7. If all circuits test normal, test or replace the adjustable pedal switch.
Friday, November 29, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 544
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 544
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify the type of vehicle and the heated seat system for which the DTC set.
If the DTC set in the rear heated seat module, refer to Circuit/System Testing below.
If the DTC set in a vehicle equipped with memory, refer to DTC B2345 (w/o HP2 with memory).
If the DTC set in a hybrid vehicle without memory, refer to DTC B2345 (HP2 w/o memory).
If the DTC set in a non-hybrid vehicle without memory, refer to DTC B2345 (Dealer Installed).
Circuit/System Testing
B2345 00
1. Ignition OFF, disconnect the X1 harness connector at the RHSM.
2. Test for infinite resistance between the control circuit terminal 3 and ground.
瀚慖f not the specified value, test the control circuits listed below for a short to ground:
* Left rear seat heater element terminal 3
* Left rear seat heater element terminal 5
3. Test for infinite resistance between the control circuit terminal 6 and ground.
瀚慖f not the specified value, test the control circuits listed below for a short to ground:
* Right rear seat heater element terminal 6
* Right rear seat heater element terminal 2
4. Ignition ON, verify that a test lamp does not illuminate between the control circuit terminal 3 and ground.
瀚慖f the test lamp illuminates, test the control circuits listed below for a short to voltage:
* Left rear seat heater element terminal 3
* Left rear seat heater element terminal 5
5. Verify that a test lamp does not illuminate between the supply voltage circuit terminal 6 and ground.
瀚慖f the test lamp illuminates, test the control circuits listed below for a short to voltage:
* Right rear seat heater element terminal 6
* Right rear seat heater element terminal 2
6. If all circuits test normal, replace the RHSM.
B2345 13
1. Ignition OFF, disconnect the X2, X4 harness connectors at the RHSM.
2. Test for greater than 850 ohms between the signal and the low reference circuits listed below:
* Left rear seat terminal 9 X4 and terminal 6 X2
* Right rear seat terminal 20 X4 and terminal 8 X2
瀚慖f less than the specified value, test for a short between the signal and low reference circuits. If the circuits test normal, replace the
appropriate seat cushion heater element/temperature sensor.
3. If all circuits test normal, replace the RHSM.
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify the type of vehicle and the heated seat system for which the DTC set.
If the DTC set in the rear heated seat module, refer to Circuit/System Testing below.
If the DTC set in a vehicle equipped with memory, refer to DTC B2345 (w/o HP2 with memory).
If the DTC set in a hybrid vehicle without memory, refer to DTC B2345 (HP2 w/o memory).
If the DTC set in a non-hybrid vehicle without memory, refer to DTC B2345 (Dealer Installed).
Circuit/System Testing
B2345 00
1. Ignition OFF, disconnect the X1 harness connector at the RHSM.
2. Test for infinite resistance between the control circuit terminal 3 and ground.
瀚慖f not the specified value, test the control circuits listed below for a short to ground:
* Left rear seat heater element terminal 3
* Left rear seat heater element terminal 5
3. Test for infinite resistance between the control circuit terminal 6 and ground.
瀚慖f not the specified value, test the control circuits listed below for a short to ground:
* Right rear seat heater element terminal 6
* Right rear seat heater element terminal 2
4. Ignition ON, verify that a test lamp does not illuminate between the control circuit terminal 3 and ground.
瀚慖f the test lamp illuminates, test the control circuits listed below for a short to voltage:
* Left rear seat heater element terminal 3
* Left rear seat heater element terminal 5
5. Verify that a test lamp does not illuminate between the supply voltage circuit terminal 6 and ground.
瀚慖f the test lamp illuminates, test the control circuits listed below for a short to voltage:
* Right rear seat heater element terminal 6
* Right rear seat heater element terminal 2
6. If all circuits test normal, replace the RHSM.
B2345 13
1. Ignition OFF, disconnect the X2, X4 harness connectors at the RHSM.
2. Test for greater than 850 ohms between the signal and the low reference circuits listed below:
* Left rear seat terminal 9 X4 and terminal 6 X2
* Right rear seat terminal 20 X4 and terminal 8 X2
瀚慖f less than the specified value, test for a short between the signal and low reference circuits. If the circuits test normal, replace the
appropriate seat cushion heater element/temperature sensor.
3. If all circuits test normal, replace the RHSM.
Tuesday, November 19, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 341
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 341
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Park Assist Switch parameter while cycling the parking assist disable switch. The parameter should change
between Active and Inactive.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the I/P multifunction switch.
2. Test for less than 1.0 Ohms between the appropriate ground circuit listed below and ground:
* RPO X88/Z88 ground circuit terminal 3
* RPO Z75 ground circuit terminal 5
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that the scan tool Park Assist Switch parameter is Inactive.
瀚慖f not the specified value, test the signal circuit terminal 2 for a short to ground. If the circuit tests normal, replace the object alarm
module.
4. Ignition OFF, connect a 3A fused jumper wire between signal circuit terminal 2 and ground.
5. Ignition ON, verify that the scan tool Park Assist Switch parameter is Active.
瀚慖f not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the
object alarm module.
6. If all circuits test normal, test or replace the I/P multifunction switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Accessory Switch Replacement (Except Cadillac) (See: Instrument Panel, Gauges and Warning Indicators/Service and Repair/Accessory
Switch Replacement (Except Cadillac))Accessory Switch Replacement (Cadillac) (See: Instrument Panel, Gauges and Warning
Indicators/Service and Repair/Accessory Switch Replacement (Cadillac))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for Object Alarm Module replacement, setup, and
programming.
B0968
DTC B0968
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B0968 00
- Parking Aid Switch Indicator Circuit
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Park Assist Switch parameter while cycling the parking assist disable switch. The parameter should change
between Active and Inactive.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the I/P multifunction switch.
2. Test for less than 1.0 Ohms between the appropriate ground circuit listed below and ground:
* RPO X88/Z88 ground circuit terminal 3
* RPO Z75 ground circuit terminal 5
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that the scan tool Park Assist Switch parameter is Inactive.
瀚慖f not the specified value, test the signal circuit terminal 2 for a short to ground. If the circuit tests normal, replace the object alarm
module.
4. Ignition OFF, connect a 3A fused jumper wire between signal circuit terminal 2 and ground.
5. Ignition ON, verify that the scan tool Park Assist Switch parameter is Active.
瀚慖f not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the
object alarm module.
6. If all circuits test normal, test or replace the I/P multifunction switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Accessory Switch Replacement (Except Cadillac) (See: Instrument Panel, Gauges and Warning Indicators/Service and Repair/Accessory
Switch Replacement (Except Cadillac))Accessory Switch Replacement (Cadillac) (See: Instrument Panel, Gauges and Warning
Indicators/Service and Repair/Accessory Switch Replacement (Cadillac))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for Object Alarm Module replacement, setup, and
programming.
B0968
DTC B0968
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B0968 00
- Parking Aid Switch Indicator Circuit
Monday, November 18, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 973
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 973
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, with the scan tool command the damper actuators ON and OFF while jouncing the vehicle in the front and rear. The suspension
should change stiffness when commanded between the ON and OFF state.
Circuit/System Testing
Important: Whenever repairing and/or replacing ALC system components, perform the Suspension Position Calibration procedure.
1. Ignition OFF, disconnect the harness connector at the appropriate suspension damper.
2. Perform this setup step in the following order:
1. Connect a test lamp between the damper connector control circuit terminal A and control circuit terminal B.
2. Ignition ON, with a scan tool, clear all ESC module DTCs.
3. Command the damper ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
瀚慖f the test lamp is always ON, test the control circuit terminal A for a short to voltage. If the circuit tests normal, replace the ESC module.
瀚慖f the test lamp is always OFF, test the control circuits listed below. If all circuits test normal, replace the ESC module.
* Control circuit terminal A for a short to ground or open/high resistance.
* Control circuit terminal B for an open/high resistance or short to voltage.
4. If all circuits test normal, test or replace the suspension damper.
Component Testing
1. Ignition OFF, disconnect the harness connector at the appropriate suspension damper.
2. Test for.7-3.3 ohm between the control terminal A and the low control terminal B of the suspension damper.
瀚慖f not within the specified range, replace the suspension damper.
Repair Instructions
* Shock Absorber Replacement (1500) (See: Steering and Suspension/Suspension/Suspension Strut / Shock Absorber/Service and
Repair/Rear Suspension Shock Absorber/Shock Absorber Replacement (1500))Shock Absorber Replacement (2500) (See: Steering and
Suspension/Suspension/Suspension Strut / Shock Absorber/Service and Repair/Rear Suspension Shock Absorber/Shock Absorber
Replacement (2500))
* Suspension Position Calibration (With Z95) (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic
)/Service and Repair/Suspension Position Calibration (With Z95))Suspension Position Calibration (Without Z95) (See: Steering and
Suspension/Suspension/Suspension Control ( Automatic - Electronic )/Service and Repair/Suspension Position Calibration (Without Z95))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for ESCM replacement, setup, and programming
Repair Verification
1. Install any components or connectors that have been removed or replaced during diagnosis.
2. Perform any adjustment, programming or setup procedures that are required when a component or module is removed or replaced.
3. Clear the DTCs.
4. Use the scan tool Diagnostic Counter Reset output control function to bypass the 3 consecutive ignition cycle requirement for setting a DTC.
This will ensure that if a DTC was to be reset during the repair verification process, it will be displayed on the scan tool.
5. Turn OFF the ignition for 60 seconds.
6. Turn ON the ignition.
7. If the repair was related to a DTC, duplicate the Conditions for Running the DTC and use the Freeze Frame/Failure Records, if appropriate,
in order to verify the DTC does not reset. If the DTC resets or another DTC is present, refer to the Diagnostic Trouble Code (DTC) List -
Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle) and perform the appropriate diagnostic
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, with the scan tool command the damper actuators ON and OFF while jouncing the vehicle in the front and rear. The suspension
should change stiffness when commanded between the ON and OFF state.
Circuit/System Testing
Important: Whenever repairing and/or replacing ALC system components, perform the Suspension Position Calibration procedure.
1. Ignition OFF, disconnect the harness connector at the appropriate suspension damper.
2. Perform this setup step in the following order:
1. Connect a test lamp between the damper connector control circuit terminal A and control circuit terminal B.
2. Ignition ON, with a scan tool, clear all ESC module DTCs.
3. Command the damper ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
瀚慖f the test lamp is always ON, test the control circuit terminal A for a short to voltage. If the circuit tests normal, replace the ESC module.
瀚慖f the test lamp is always OFF, test the control circuits listed below. If all circuits test normal, replace the ESC module.
* Control circuit terminal A for a short to ground or open/high resistance.
* Control circuit terminal B for an open/high resistance or short to voltage.
4. If all circuits test normal, test or replace the suspension damper.
Component Testing
1. Ignition OFF, disconnect the harness connector at the appropriate suspension damper.
2. Test for.7-3.3 ohm between the control terminal A and the low control terminal B of the suspension damper.
瀚慖f not within the specified range, replace the suspension damper.
Repair Instructions
* Shock Absorber Replacement (1500) (See: Steering and Suspension/Suspension/Suspension Strut / Shock Absorber/Service and
Repair/Rear Suspension Shock Absorber/Shock Absorber Replacement (1500))Shock Absorber Replacement (2500) (See: Steering and
Suspension/Suspension/Suspension Strut / Shock Absorber/Service and Repair/Rear Suspension Shock Absorber/Shock Absorber
Replacement (2500))
* Suspension Position Calibration (With Z95) (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic
)/Service and Repair/Suspension Position Calibration (With Z95))Suspension Position Calibration (Without Z95) (See: Steering and
Suspension/Suspension/Suspension Control ( Automatic - Electronic )/Service and Repair/Suspension Position Calibration (Without Z95))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for ESCM replacement, setup, and programming
Repair Verification
1. Install any components or connectors that have been removed or replaced during diagnosis.
2. Perform any adjustment, programming or setup procedures that are required when a component or module is removed or replaced.
3. Clear the DTCs.
4. Use the scan tool Diagnostic Counter Reset output control function to bypass the 3 consecutive ignition cycle requirement for setting a DTC.
This will ensure that if a DTC was to be reset during the repair verification process, it will be displayed on the scan tool.
5. Turn OFF the ignition for 60 seconds.
6. Turn ON the ignition.
7. If the repair was related to a DTC, duplicate the Conditions for Running the DTC and use the Freeze Frame/Failure Records, if appropriate,
in order to verify the DTC does not reset. If the DTC resets or another DTC is present, refer to the Diagnostic Trouble Code (DTC) List -
Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle) and perform the appropriate diagnostic
Sunday, November 17, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 89
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 89
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
1. Verify that DTC B009F 00, B009F 4A, or B009F 73 is not set.
瀚慖f the DTC is set, program the serial data gateway module. If the DTC resets, replace the serial data gateway module.
2. Verify the serial data gateway module is programmed with the correct software calibration.
瀚慖f the correct software is not installed, program the serial data gateway module.
3. Ignition ON, observe the scan tool Hybrid Crash Sensor 1 parameter. The reading should be No Crash.
瀚慖f not No Crash, refer to Circuit/System Testing.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the high voltage circuit impact detector sensor.
2. Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 5 ohm between the low
reference circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the serial
data gateway module.
Note: The serial data gateway module will attempt to communicate with the high voltage circuit impact detector sensor for 5 seconds
immediately after the ignition is turned ON. After 5 seconds the signal circuit will be inactive.
Note: The DMM should not be set on the Auto Range scale. The Auto Range will give erratic test results.
3. Connect a DMM, set on a manual setting that can read 12 V with the MIN/MAX function enabled, between the signal circuit terminal 1 and
ground.
4. Ignition ON, wait 10 seconds, The DMM reading should be less than 1.0 V.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the serial data gateway module.
5. Verify the DMM MAX reading is greater than 6.0 V.
瀚慖f less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
serial data gateway module.
6. If all circuits test normal, test or replace the high voltage circuit impact detector sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* High Voltage Circuit Impact Detection Sensor Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup,
and programming
B0010
DTC B0010
Diagnostic Instructions
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
1. Verify that DTC B009F 00, B009F 4A, or B009F 73 is not set.
瀚慖f the DTC is set, program the serial data gateway module. If the DTC resets, replace the serial data gateway module.
2. Verify the serial data gateway module is programmed with the correct software calibration.
瀚慖f the correct software is not installed, program the serial data gateway module.
3. Ignition ON, observe the scan tool Hybrid Crash Sensor 1 parameter. The reading should be No Crash.
瀚慖f not No Crash, refer to Circuit/System Testing.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the high voltage circuit impact detector sensor.
2. Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 5 ohm between the low
reference circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the serial
data gateway module.
Note: The serial data gateway module will attempt to communicate with the high voltage circuit impact detector sensor for 5 seconds
immediately after the ignition is turned ON. After 5 seconds the signal circuit will be inactive.
Note: The DMM should not be set on the Auto Range scale. The Auto Range will give erratic test results.
3. Connect a DMM, set on a manual setting that can read 12 V with the MIN/MAX function enabled, between the signal circuit terminal 1 and
ground.
4. Ignition ON, wait 10 seconds, The DMM reading should be less than 1.0 V.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the serial data gateway module.
5. Verify the DMM MAX reading is greater than 6.0 V.
瀚慖f less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
serial data gateway module.
6. If all circuits test normal, test or replace the high voltage circuit impact detector sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* High Voltage Circuit Impact Detection Sensor Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup,
and programming
B0010
DTC B0010
Diagnostic Instructions
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 866
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 866
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Verify that DTC C0710 is not set.
瀚慖f the DTC is set, refer to DTC C0710 (See: C Code Charts/C0710/Antilock Brake System - Non-Hybrid Less than 3900 kg (8600 lb)
GVW).
2. Ignition OFF, disconnect the harness connector at the yaw/lateral accelerometer sensor.
3. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Test for less than 10 ohm
between the ground circuit terminal 1 and ground.
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
4. Disconnect the harness connector at the EBCM.
5. Test for infinite resistance between the 12 V reference circuit terminal 32 of the EBCM connector and ground.
瀚慖f not the specified value, test the 12 V reference circuit for a short to ground.
6. Test for less than 2 ohm between the 12 V reference circuit terminal 32 of the EBCM connector and terminal 4 of the yaw/lateral
accelerometer sensor connector.
瀚慖f greater than the specified range, test the 12 V reference circuit for open/high resistance.
7. If all circuits test normal, replace the yaw/lateral accelerometer sensor. If the DTC resets, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction
Control Systems/Yaw Rate Sensor/Service and Repair/Less than 3900 kg (8600 lb) GVW)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, programming and setup
Antilock Brake System - Non-Hybrid Greater than/Equal to 3900 kg (8600 lb) GVW
DTC C0186 or C0196
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions)provides an overview of each diagnostic category.
DTC Descriptors
DTC C0186 55
- Lateral Accelerometer Circuit Expected Number of Transition/Events Exceeded
DTC C0186 5A
- Lateral Accelerometer Circuit Plausibility Failure
DTC C0186 0F
- Lateral Accelerometer Circuit Erratic
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Verify that DTC C0710 is not set.
瀚慖f the DTC is set, refer to DTC C0710 (See: C Code Charts/C0710/Antilock Brake System - Non-Hybrid Less than 3900 kg (8600 lb)
GVW).
2. Ignition OFF, disconnect the harness connector at the yaw/lateral accelerometer sensor.
3. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Test for less than 10 ohm
between the ground circuit terminal 1 and ground.
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
4. Disconnect the harness connector at the EBCM.
5. Test for infinite resistance between the 12 V reference circuit terminal 32 of the EBCM connector and ground.
瀚慖f not the specified value, test the 12 V reference circuit for a short to ground.
6. Test for less than 2 ohm between the 12 V reference circuit terminal 32 of the EBCM connector and terminal 4 of the yaw/lateral
accelerometer sensor connector.
瀚慖f greater than the specified range, test the 12 V reference circuit for open/high resistance.
7. If all circuits test normal, replace the yaw/lateral accelerometer sensor. If the DTC resets, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction
Control Systems/Yaw Rate Sensor/Service and Repair/Less than 3900 kg (8600 lb) GVW)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, programming and setup
Antilock Brake System - Non-Hybrid Greater than/Equal to 3900 kg (8600 lb) GVW
DTC C0186 or C0196
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions)provides an overview of each diagnostic category.
DTC Descriptors
DTC C0186 55
- Lateral Accelerometer Circuit Expected Number of Transition/Events Exceeded
DTC C0186 5A
- Lateral Accelerometer Circuit Plausibility Failure
DTC C0186 0F
- Lateral Accelerometer Circuit Erratic
Saturday, November 16, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 747
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 747
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Pedal Forward Switch and Pedal Aft Switch parameters while cycling the adjustable pedal switch between the
FWD and RWD position. The appropriate parameter should change between Active and Inactive as commanded.
Circuit/System Testing
1. Disconnect the harness connector at the adjustable pedal switch.
2. Ignition ON, test for 11.8-12.2 volts between the appropriate 12-volt reference circuit listed below and ground:
* X88/Z88 - terminal 11
* Z75 - terminal 5
瀚慖f greater than the specified range, test the 12-volt reference circuit for a short to voltage. If the circuit tests normal, replace the MSM.
瀚慖f less than the specified range, test the 12-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests
normal, replace the MSM.
3. Verify the scan tool Pedal Forward Switch parameter is Inactive.
瀚慖f not the specified value, test the appropriate signal circuit terminal listed below for a short to voltage. If the circuit tests normal, replace
the MSM.
* X88/Z88 - terminal 12
* Z75 - terminal 6
4. Verify the scan tool Pedal Aft Switch parameter is Inactive.
瀚慖f not the specified value, test the appropriate signal circuit terminal listed below for a short to voltage. If the circuit tests normal, replace
the MSM.
* X88/Z88 - terminal 10
* Z75 - terminal 4
5. Install a 3A fused jumper wire between the appropriate signal circuit terminal listed below and B+. The scan tool Pedal Forward Switch
parameter should be Active.
* X88/Z88 - terminal 12
* Z75 - terminal 6
瀚慖f not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
MSM.
6. Install a 3A fused jumper wire between the appropriate signal circuit terminal listed below and B+. The scan tool Pedal Aft Switch parameter
should be Active.
* X88/Z88 - terminal 10
* Z75 - terminal 4
瀚慖f not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
MSM.
7. If all circuits test normal, test or replace the adjustable pedal switch.
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Pedal Forward Switch and Pedal Aft Switch parameters while cycling the adjustable pedal switch between the
FWD and RWD position. The appropriate parameter should change between Active and Inactive as commanded.
Circuit/System Testing
1. Disconnect the harness connector at the adjustable pedal switch.
2. Ignition ON, test for 11.8-12.2 volts between the appropriate 12-volt reference circuit listed below and ground:
* X88/Z88 - terminal 11
* Z75 - terminal 5
瀚慖f greater than the specified range, test the 12-volt reference circuit for a short to voltage. If the circuit tests normal, replace the MSM.
瀚慖f less than the specified range, test the 12-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests
normal, replace the MSM.
3. Verify the scan tool Pedal Forward Switch parameter is Inactive.
瀚慖f not the specified value, test the appropriate signal circuit terminal listed below for a short to voltage. If the circuit tests normal, replace
the MSM.
* X88/Z88 - terminal 12
* Z75 - terminal 6
4. Verify the scan tool Pedal Aft Switch parameter is Inactive.
瀚慖f not the specified value, test the appropriate signal circuit terminal listed below for a short to voltage. If the circuit tests normal, replace
the MSM.
* X88/Z88 - terminal 10
* Z75 - terminal 4
5. Install a 3A fused jumper wire between the appropriate signal circuit terminal listed below and B+. The scan tool Pedal Forward Switch
parameter should be Active.
* X88/Z88 - terminal 12
* Z75 - terminal 6
瀚慖f not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
MSM.
6. Install a 3A fused jumper wire between the appropriate signal circuit terminal listed below and B+. The scan tool Pedal Aft Switch parameter
should be Active.
* X88/Z88 - terminal 10
* Z75 - terminal 4
瀚慖f not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
MSM.
7. If all circuits test normal, test or replace the adjustable pedal switch.
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 728
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 728
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, command the liftglass latch to release the liftglass by pressing the liftgate window release switch. The liftglass latch should release the
liftglass.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the rear window wiper motor.
2. Ignition ON, connect a test lamp between the signal circuit terminal B and ground.
3. Command the liftglass latch to release by pressing the liftgate window release switch. The test lamp should briefly illuminate when the
liftgate window release switch is pressed.
瀚慖f the test lamp is always OFF, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the BCM.
瀚慖f the test lamp is always ON, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
4. If all circuits test normal, replace the rear window wiper motor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Rear Window Wiper Motor Replacement (See: Wiper and Washer Systems/Wiper Motor/Service and Repair/Rear Window Wiper Motor
Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement and setup procedures
B3445
DTC B3445
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B3445 00
- Stop Lamp Circuit
Diagnostic Fault Information
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, command the liftglass latch to release the liftglass by pressing the liftgate window release switch. The liftglass latch should release the
liftglass.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the rear window wiper motor.
2. Ignition ON, connect a test lamp between the signal circuit terminal B and ground.
3. Command the liftglass latch to release by pressing the liftgate window release switch. The test lamp should briefly illuminate when the
liftgate window release switch is pressed.
瀚慖f the test lamp is always OFF, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the BCM.
瀚慖f the test lamp is always ON, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
4. If all circuits test normal, replace the rear window wiper motor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Rear Window Wiper Motor Replacement (See: Wiper and Washer Systems/Wiper Motor/Service and Repair/Rear Window Wiper Motor
Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement and setup procedures
B3445
DTC B3445
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B3445 00
- Stop Lamp Circuit
Diagnostic Fault Information
Friday, November 15, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 713
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 713
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Important: When using this diagnostic, more than one vehicle key is required to ensure proper diagnosis. If more than one key is not
available at the time of service, contact the customer and ask if any other keys can be provided for service. If unavailable, a new second
key can be created.
1. Perform the 10-Minute Vehicle Key Relearn procedure. Refer to Replacing Keys (North America except Canada) (See: Accessories and
Optional Equipment/Antitheft and Alarm Systems/Service and Repair/Replacing Keys (North America Except Canada)).
2. While viewing the scan tool TDM Valid Key parameter, turn ON the ignition with each of the available vehicle keys. The parameter should
read Yes with all available keys.
瀚慖f not the specified value, replace the appropriate key.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Replacing Keys (North America except Canada) (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Service and
Repair/Replacing Keys (North America Except Canada))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for TDM replacement, setup, and programming
B3105
DTC B3105
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B3105
- Keyless Entry System Key Fobs Not Programmed
Circuit/System Description
The remote control door lock receiver (RCDLR) monitors the number of keyless entry transmitters programmed. Until at least one transmitter is
programmed, the RCDLR determines a malfunction condition exists.
Conditions for Running the DTC
The keyless entry system must be enabled.
Conditions for Setting the DTC
The DTC is set if there are no keyless entry transmitter programmed to the RCDLR.
Action Taken When the DTC Sets
The keyless entry system is inoperative.
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Important: When using this diagnostic, more than one vehicle key is required to ensure proper diagnosis. If more than one key is not
available at the time of service, contact the customer and ask if any other keys can be provided for service. If unavailable, a new second
key can be created.
1. Perform the 10-Minute Vehicle Key Relearn procedure. Refer to Replacing Keys (North America except Canada) (See: Accessories and
Optional Equipment/Antitheft and Alarm Systems/Service and Repair/Replacing Keys (North America Except Canada)).
2. While viewing the scan tool TDM Valid Key parameter, turn ON the ignition with each of the available vehicle keys. The parameter should
read Yes with all available keys.
瀚慖f not the specified value, replace the appropriate key.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Replacing Keys (North America except Canada) (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Service and
Repair/Replacing Keys (North America Except Canada))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for TDM replacement, setup, and programming
B3105
DTC B3105
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B3105
- Keyless Entry System Key Fobs Not Programmed
Circuit/System Description
The remote control door lock receiver (RCDLR) monitors the number of keyless entry transmitters programmed. Until at least one transmitter is
programmed, the RCDLR determines a malfunction condition exists.
Conditions for Running the DTC
The keyless entry system must be enabled.
Conditions for Setting the DTC
The DTC is set if there are no keyless entry transmitter programmed to the RCDLR.
Action Taken When the DTC Sets
The keyless entry system is inoperative.
Monday, November 11, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 371
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 371
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Park Assist Switch LED parameter while pressing and releasing the park assist disable switch. The parameter
should change between On and Off.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the I/P multifunction switch.
2. Ignition ON, verify a test lamp illuminates between the appropriate ignition circuit listed below and ground:
* RPO X88/Z88 ignition circuit terminal 6
* RPO Z75 ignition circuit terminal 4
瀚慖f the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
3. Ignition OFF, connect the harness connector at the I/P multifunction switch. Disconnect the X1 harness connector at the object alarm module.
4. Ignition ON, verify the park assist disable LED is not illuminated.
瀚慖f the LED is illuminated, test the control circuit for a short to ground. If the circuit tests normal, test or replace the I/P multifunction
switch.
5. Install a 10A fused jumper wire between the control circuit terminal 3 and ground. Verify that the park assist disable LED is illuminated.
瀚慖f the LED is not illuminated, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or
replace the I/P multifunction switch.
6. If all circuits test normal, replace the object alarm module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Rear Object Alarm Module Switch Replacement (Escalade) (See: Accessories and Optional Equipment/Collision Avoidance and Parking
Assist Systems/Parking Assist Switch/Service and Repair/Rear Object Alarm Module Switch Replacement (Escalade))Rear Object Alarm
Module Switch Replacement (Tahoe/Yukon) (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist
Systems/Parking Assist Switch/Service and Repair/Rear Object Alarm Module Switch Replacement (Tahoe/Yukon))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for Object Alarm Module replacement, setup, and
programming.
B1000
DTC B1000
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Park Assist Switch LED parameter while pressing and releasing the park assist disable switch. The parameter
should change between On and Off.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the I/P multifunction switch.
2. Ignition ON, verify a test lamp illuminates between the appropriate ignition circuit listed below and ground:
* RPO X88/Z88 ignition circuit terminal 6
* RPO Z75 ignition circuit terminal 4
瀚慖f the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
3. Ignition OFF, connect the harness connector at the I/P multifunction switch. Disconnect the X1 harness connector at the object alarm module.
4. Ignition ON, verify the park assist disable LED is not illuminated.
瀚慖f the LED is illuminated, test the control circuit for a short to ground. If the circuit tests normal, test or replace the I/P multifunction
switch.
5. Install a 10A fused jumper wire between the control circuit terminal 3 and ground. Verify that the park assist disable LED is illuminated.
瀚慖f the LED is not illuminated, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or
replace the I/P multifunction switch.
6. If all circuits test normal, replace the object alarm module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Rear Object Alarm Module Switch Replacement (Escalade) (See: Accessories and Optional Equipment/Collision Avoidance and Parking
Assist Systems/Parking Assist Switch/Service and Repair/Rear Object Alarm Module Switch Replacement (Escalade))Rear Object Alarm
Module Switch Replacement (Tahoe/Yukon) (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist
Systems/Parking Assist Switch/Service and Repair/Rear Object Alarm Module Switch Replacement (Tahoe/Yukon))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for Object Alarm Module replacement, setup, and
programming.
B1000
DTC B1000
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
Thursday, November 7, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1322
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1322
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Special Tools
* EL-48571 High Voltage Battery Pin Out Box
* EL-48900 HEV Safety Kit
Circuit/System Verification
Ignition ON, observe the scan tool Hybrid Battery 1-20 parameters. Each reading should be between 10-19 V, and all readings should be within 1.5
V of each other.
Circuit/System Testing
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Disconnect the X4 harness connector at the drive motor battery control module.
3. Connect to the EL-48571 high voltage battery pin out box.
4. Install the high voltage manual disconnect lever. Measure and record each of the 20 battery voltages.
5. Each battery voltage reading should be between 10-19 V.
瀚慖f not within the specified range, replace the drive motor battery assembly.
6. Each battery voltage reading should be within 1.5 V of each other.
瀚慖f not within the specified range, replace the drive motor battery assembly.
7. If all circuits test normal, replace the drive motor battery control module.
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Special Tools
* EL-48571 High Voltage Battery Pin Out Box
* EL-48900 HEV Safety Kit
Circuit/System Verification
Ignition ON, observe the scan tool Hybrid Battery 1-20 parameters. Each reading should be between 10-19 V, and all readings should be within 1.5
V of each other.
Circuit/System Testing
Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection.
Personal Protection Equipment (PPE) and proper procedures must be followed.
The High Voltage Disabling procedure will perform the following tasks:
* Identify how to disable high voltage.
* Identify how to test for the presence of high voltage.
* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures
must be followed.
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:
* Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors.
* Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
- Visually and functionally inspect the gloves before use.
- Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or
not.
Failure to follow the procedures exactly as written may result in serious injury or death.
1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().
2. Disconnect the X4 harness connector at the drive motor battery control module.
3. Connect to the EL-48571 high voltage battery pin out box.
4. Install the high voltage manual disconnect lever. Measure and record each of the 20 battery voltages.
5. Each battery voltage reading should be between 10-19 V.
瀚慖f not within the specified range, replace the drive motor battery assembly.
6. Each battery voltage reading should be within 1.5 V of each other.
瀚慖f not within the specified range, replace the drive motor battery assembly.
7. If all circuits test normal, replace the drive motor battery control module.
Tuesday, November 5, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1150
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1150
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Special Tools
EL-48900 HEV Safety Kit
Circuit/System Verification
Testing Verify that DTC P0ADB or P0ADC is not set.
If any of the DTCs are set, refer to High Voltage Contactor/Relay Malfunction ().
P0ADF
DTC P0ADF or P0AE0
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P0ADF
- Hybrid Battery Negative Contactor Control Circuit Low Voltage
DTC P0AE0
- Hybrid Battery Negative Contactor Control Circuit High Voltage
Diagnostic Fault Information
Circuit/System Description
The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The drive motor generator
battery control module will diagnose its own systems and determine when a fault condition is present. Diagnostics and system status is
communicated from the drive motor generator battery control module to the hybrid powertrain control module (HPCM) through serial data. The
hybrid powertrain control module is the host controller for diagnostic trouble code (DTC) information.
The hybrid drive motor generator battery contains 3 high voltage contactors. The contactors allow the high voltage DC batteries to be connected to
the vehicle or safely contain the DC high voltage within the drive motor generator battery assembly. The 3 contactors are a positive high voltage
contactor, negative high voltage contactor, and current limit relay. These contactor/relays close and open in sequence and are controlled by the
drive motor generator battery control module. The drive motor generator battery control module monitors the control circuit voltage and 12 V
reference circuit internal to the control module to determine if the circuit is operating.
Conditions for Running the DTC
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Special Tools
EL-48900 HEV Safety Kit
Circuit/System Verification
Testing Verify that DTC P0ADB or P0ADC is not set.
If any of the DTCs are set, refer to High Voltage Contactor/Relay Malfunction ().
P0ADF
DTC P0ADF or P0AE0
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P0ADF
- Hybrid Battery Negative Contactor Control Circuit Low Voltage
DTC P0AE0
- Hybrid Battery Negative Contactor Control Circuit High Voltage
Diagnostic Fault Information
Circuit/System Description
The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The drive motor generator
battery control module will diagnose its own systems and determine when a fault condition is present. Diagnostics and system status is
communicated from the drive motor generator battery control module to the hybrid powertrain control module (HPCM) through serial data. The
hybrid powertrain control module is the host controller for diagnostic trouble code (DTC) information.
The hybrid drive motor generator battery contains 3 high voltage contactors. The contactors allow the high voltage DC batteries to be connected to
the vehicle or safely contain the DC high voltage within the drive motor generator battery assembly. The 3 contactors are a positive high voltage
contactor, negative high voltage contactor, and current limit relay. These contactor/relays close and open in sequence and are controlled by the
drive motor generator battery control module. The drive motor generator battery control module monitors the control circuit voltage and 12 V
reference circuit internal to the control module to determine if the circuit is operating.
Conditions for Running the DTC
Sunday, November 3, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1014
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1014
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify that the DTC C0775 is not set.
If the DTC is set, perform the tire pressure sensor learn procedure. Cycle the ignition. If the DTC resets, replace the RCDLR.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Tire Pressure Indicator Sensor Learn (See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure
Sensor/Testing and Inspection)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for RCDLR replacement, setup, and programming
Gasoline Without LY6
DTC C0870, C1112, C1113, C1114, or C1119 (Gasoline Without LY6)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC C0870 00
- Device Voltage Reference Output 1 Circuit
DTC C1112 00
- Trailer Brake Control Relay Low Control Circuit
DTC C1113 01
- Trailer Brake Control Relay High Control Circuit Short to Battery
DTC C1114 00
- Trailer Brake Control Solenoids Control Circuit
DTC C1119 00
- Trailer Brake Control Relay Feedback Circuit
Diagnostic Fault Information
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify that the DTC C0775 is not set.
If the DTC is set, perform the tire pressure sensor learn procedure. Cycle the ignition. If the DTC resets, replace the RCDLR.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Tire Pressure Indicator Sensor Learn (See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure
Sensor/Testing and Inspection)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for RCDLR replacement, setup, and programming
Gasoline Without LY6
DTC C0870, C1112, C1113, C1114, or C1119 (Gasoline Without LY6)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC C0870 00
- Device Voltage Reference Output 1 Circuit
DTC C1112 00
- Trailer Brake Control Relay Low Control Circuit
DTC C1113 01
- Trailer Brake Control Relay High Control Circuit Short to Battery
DTC C1114 00
- Trailer Brake Control Solenoids Control Circuit
DTC C1119 00
- Trailer Brake Control Relay Feedback Circuit
Diagnostic Fault Information
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