2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 969
* 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
DTC C12BB
- ABS Regenerative Axle Pressure Sensor Erratic
DTC C121A
- ABS Regenerative Axle Pressure Sensor
Circuit/System Description
The electronic brake control module (EBCM) uses input from the regenerative axle pressure sensor for more accurate control during a brake and
vehicle stability enhancement system (VSES) event. The regenerative axle pressure sensor is internal to the brake pressure modulator valve
assembly.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
C128F, C12F7, C121A, C012C 11 or C128C
Internal sensor failure is detected.
C012C 01 or C12BA
A short to battery is detected on the sensor signal circuit.
C012C 06 or C12B9
A short to ground or open is detected signal circuit.
C012C 0F or C12BB
Signal is erratic and changes faster than physically allowed.
Action Taken When the DTC Sets
A DIC message and/or a warning indicator may be displayed.
Showing posts with label * Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure. Show all posts
Showing posts with label * Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure. Show all posts
Wednesday, December 18, 2019
Sunday, December 15, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 896
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 896
* 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 C0299 00
- Brake Booster Performance
DTC C12FF 00
- EBCM Internal Malfunction
DTC C0299 31
- Brake Booster Performance General Checksum Failure
Circuit/System Description
The electronic brake control module (EBCM) uses input from the brake master cylinder piston position sensor and the brake switch to determine
when the brake pedal is being applied and with how much force. These inputs are used to determine the driver's braking intent which is used to the
control amount of pressure applied to the wheels.
Conditions for Running the DTC
* Ignition ON.
* The ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
* The brake pedal is sensed as applied for 6 minutes.
* The vehicle speed is greater than 21 km/h (13 mph).
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* 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
* 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 C0299 00
- Brake Booster Performance
DTC C12FF 00
- EBCM Internal Malfunction
DTC C0299 31
- Brake Booster Performance General Checksum Failure
Circuit/System Description
The electronic brake control module (EBCM) uses input from the brake master cylinder piston position sensor and the brake switch to determine
when the brake pedal is being applied and with how much force. These inputs are used to determine the driver's braking intent which is used to the
control amount of pressure applied to the wheels.
Conditions for Running the DTC
* Ignition ON.
* The ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
* The brake pedal is sensed as applied for 6 minutes.
* The vehicle speed is greater than 21 km/h (13 mph).
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* 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
Saturday, December 14, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 883
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 883
* 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 C0880 00
- Device Voltage Reference Output Circuit
DTC C12E5 00
- Brake Pedal Position Sensor Reference Circuit
DTC C0880 02
- Device Voltage Reference Output Circuit Short to Ground
DTC C120F 00
- Device Voltage Reference Output Circuit Short to Ground
Diagnostic Fault Information
Circuit/System Description
The electronic brake control module (EBCM) supplies a shared 5 volt reference to the brake master cylinder piston position sensor, steering angle
sensor and brake master cylinder piston position sensor.
Conditions for Running the DTC
* Ignition ON.
* The ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects the voltage on the 5 V reference circuit to the brake master cylinder piston position sensor, steering angle sensor and brake
master cylinder piston position sensor is less than 4.8 V or greater than 5.2 V.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
* 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 C0880 00
- Device Voltage Reference Output Circuit
DTC C12E5 00
- Brake Pedal Position Sensor Reference Circuit
DTC C0880 02
- Device Voltage Reference Output Circuit Short to Ground
DTC C120F 00
- Device Voltage Reference Output Circuit Short to Ground
Diagnostic Fault Information
Circuit/System Description
The electronic brake control module (EBCM) supplies a shared 5 volt reference to the brake master cylinder piston position sensor, steering angle
sensor and brake master cylinder piston position sensor.
Conditions for Running the DTC
* Ignition ON.
* The ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects the voltage on the 5 V reference circuit to the brake master cylinder piston position sensor, steering angle sensor and brake
master cylinder piston position sensor is less than 4.8 V or greater than 5.2 V.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Monday, November 18, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 963
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 963
* 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 C0569 00
- System Configuration Error
Circuit/System Description
The electronic brake module (EBCM) receives a serial data message from each of the network modules. Each module contains its own unique
identification (ID) code that must be programmed into a new the EBCM.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
The EBCM has not undergone the programming procedure.
Action Taken When the DTC Sets
* The EBCM disables the ABS/traction control system (TCS)/vehicle stability enhancement system (VSES) for the duration of the ignition
cycle.
* The ABS indicator illuminates.
* The red Brake indicator illuminates.
* The Stability Control indicator illuminates.
* The driver information center (DIC) displays All Wheel Drive OFF, Service StabiliTrak and Service Traction Control messages.
Conditions for Clearing the DTC
A current DTC will clear when the EBCM is programmed.
Diagnostic Aids
A newly replaced EBCM will set DTC C0569 on its initial ignition ON cycle.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* 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 C0569 is not set.
If the DTC is set, program the EBCM. If the DTC resets, replace the EBCM.
* 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 C0569 00
- System Configuration Error
Circuit/System Description
The electronic brake module (EBCM) receives a serial data message from each of the network modules. Each module contains its own unique
identification (ID) code that must be programmed into a new the EBCM.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
The EBCM has not undergone the programming procedure.
Action Taken When the DTC Sets
* The EBCM disables the ABS/traction control system (TCS)/vehicle stability enhancement system (VSES) for the duration of the ignition
cycle.
* The ABS indicator illuminates.
* The red Brake indicator illuminates.
* The Stability Control indicator illuminates.
* The driver information center (DIC) displays All Wheel Drive OFF, Service StabiliTrak and Service Traction Control messages.
Conditions for Clearing the DTC
A current DTC will clear when the EBCM is programmed.
Diagnostic Aids
A newly replaced EBCM will set DTC C0569 on its initial ignition ON cycle.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* 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 C0569 is not set.
If the DTC is set, program the EBCM. If the DTC resets, replace the EBCM.
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 960
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 960
* 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 C0561 F0
- System Disabled Information Stored Invalid Serial Data Received
DTC C0561 F1
- System Disabled Information Stored Invalid Serial Data Received
Circuit/System Description
Diagnostics are used to determine whether or not there is a fault with the brake pressure or wheel speed data being received by the fuel pump/trailer
brake control module over GMLAN serial data.
The loss of serial data brake pressure diagnostic is to determine whether or not there is a fault with the brake pressure data being received over
GMLAN. This diagnostic looks at the brake pressure signal validity and protection value signals over a period of time to determine the fault state of
the brake pressure sensor.
The loss of serial data wheel speed diagnostic is to determine whether or not there is a fault with the wheel speed data being received over
GMLAN. This diagnostic looks at the wheel speed signal validity and sequence number errors over a period of time to determine the fault state
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is 9.5-17 V.
Conditions for Setting the DTC
* The EBCM diagnoses a fault condition in the master cylinder pressure sensor, and sends a serial data message to the fuel pump/trailer brake
control module.
* The EBCM diagnoses a fault condition in the wheel speed sensors, and sends a serial data message to the fuel pump/trailer brake control
module.
* The fuel pump/trailer brake control module losses communication with the EBCM.
Action Taken When the DTC Sets
* The trailer brake control will be disabled for the remainder of the ignition cycle.
* The driver information center (DIC) will display Service Trailer Brake System.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The fuel pump/trailer brake control module clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Trailer Brake Control Schematics (See: Brakes and Traction Control/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Trailer Brake Controls Description and Operation (See: Powertrain Management/Computers and Control Systems/Description and
Operation/Trailer Brake Controls Description and Operation)
Electrical Information Reference
* 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)
* 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 C0561 F0
- System Disabled Information Stored Invalid Serial Data Received
DTC C0561 F1
- System Disabled Information Stored Invalid Serial Data Received
Circuit/System Description
Diagnostics are used to determine whether or not there is a fault with the brake pressure or wheel speed data being received by the fuel pump/trailer
brake control module over GMLAN serial data.
The loss of serial data brake pressure diagnostic is to determine whether or not there is a fault with the brake pressure data being received over
GMLAN. This diagnostic looks at the brake pressure signal validity and protection value signals over a period of time to determine the fault state of
the brake pressure sensor.
The loss of serial data wheel speed diagnostic is to determine whether or not there is a fault with the wheel speed data being received over
GMLAN. This diagnostic looks at the wheel speed signal validity and sequence number errors over a period of time to determine the fault state
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is 9.5-17 V.
Conditions for Setting the DTC
* The EBCM diagnoses a fault condition in the master cylinder pressure sensor, and sends a serial data message to the fuel pump/trailer brake
control module.
* The EBCM diagnoses a fault condition in the wheel speed sensors, and sends a serial data message to the fuel pump/trailer brake control
module.
* The fuel pump/trailer brake control module losses communication with the EBCM.
Action Taken When the DTC Sets
* The trailer brake control will be disabled for the remainder of the ignition cycle.
* The driver information center (DIC) will display Service Trailer Brake System.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The fuel pump/trailer brake control module clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Trailer Brake Control Schematics (See: Brakes and Traction Control/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Trailer Brake Controls Description and Operation (See: Powertrain Management/Computers and Control Systems/Description and
Operation/Trailer Brake Controls Description and Operation)
Electrical Information Reference
* 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)
Friday, November 15, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 258
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 258
* 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 B0158 02
- Outside Air Temperature Sensor Circuit Short to Ground
DTC B0158 05
- Outside Air Temperature Sensor Circuit Short to Battery or Open
DTC B0163 02
- Passenger Compartment Temp Sensor 1 Circuit Short to Ground
DTC B0163 05
- Passenger Compartment Temp Sensor 1 Circuit Short to Battery or Open
DTC B0168 02
- Passenger Compartment Temp Sensor 2 Circuit Short to Ground
DTC B0168 05
- Passenger Compartment Temp Sensor 2 Circuit Short to Battery or Open
DTC B0173 02
- Output Air Temperature Sensor 1 Circuit Short to Ground
DTC B0173 05
- Output Air Temperature Sensor 1 Circuit Short to Battery or Open
DTC B0178 02
- Output Air Temperature Sensor 2 Circuit Short to Ground
DTC B0178 05
- Output Air Temperature Sensor 2 Circuit Short to Battery or Open
DTC B0509 02
- Output Air Temperature Sensor 3 Circuit Short to Ground
DTC B0509 05
- Output Air Temperature Sensor 3 Circuit Short to Battery or Open
DTC B0514 02
- Output Air Temperature Sensor 4 Circuit Short to Ground
DTC B0514 05
- Output Air Temperature Sensor 4 Circuit Short to Battery or Open
DTC B3578 02
- Output Air Temperature Sensor 6 Circuit Short to Ground
DTC B3578 05
- Output Air Temperature Sensor 6 Circuit Short to Battery or Open
DTC B3583 02
- Output Air Temperature Sensor 7 Circuit Short to Ground
DTC B3583 05
- Output Air Temperature Sensor 7 Circuit Short to Battery or Open
Diagnostic Fault Information
* 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 B0158 02
- Outside Air Temperature Sensor Circuit Short to Ground
DTC B0158 05
- Outside Air Temperature Sensor Circuit Short to Battery or Open
DTC B0163 02
- Passenger Compartment Temp Sensor 1 Circuit Short to Ground
DTC B0163 05
- Passenger Compartment Temp Sensor 1 Circuit Short to Battery or Open
DTC B0168 02
- Passenger Compartment Temp Sensor 2 Circuit Short to Ground
DTC B0168 05
- Passenger Compartment Temp Sensor 2 Circuit Short to Battery or Open
DTC B0173 02
- Output Air Temperature Sensor 1 Circuit Short to Ground
DTC B0173 05
- Output Air Temperature Sensor 1 Circuit Short to Battery or Open
DTC B0178 02
- Output Air Temperature Sensor 2 Circuit Short to Ground
DTC B0178 05
- Output Air Temperature Sensor 2 Circuit Short to Battery or Open
DTC B0509 02
- Output Air Temperature Sensor 3 Circuit Short to Ground
DTC B0509 05
- Output Air Temperature Sensor 3 Circuit Short to Battery or Open
DTC B0514 02
- Output Air Temperature Sensor 4 Circuit Short to Ground
DTC B0514 05
- Output Air Temperature Sensor 4 Circuit Short to Battery or Open
DTC B3578 02
- Output Air Temperature Sensor 6 Circuit Short to Ground
DTC B3578 05
- Output Air Temperature Sensor 6 Circuit Short to Battery or Open
DTC B3583 02
- Output Air Temperature Sensor 7 Circuit Short to Ground
DTC B3583 05
- Output Air Temperature Sensor 7 Circuit Short to Battery or Open
Diagnostic Fault Information
Wednesday, November 13, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 539
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 539
* 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 B1925 02
- Left Seat Cushion Heater Sensor Circuit Shorted to Ground
DTC B1925 05
- Left Seat Cushion Heater Sensor Circuit Shorted to Battery or Open
DTC B2170 02
- Right Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B2170 05
- Right Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
Diagnostic Fault Information
Circuit/System Description
The heated seat temperature sensor that set this diagnostic trouble code (DTC) is located in the seat cushion just under the seat cover with the seat
heating element. The rear heated seat module (RHSM) supplies a 5 V reference voltage through the temperature sensor signal circuit and a ground
through the low reference circuit to the sensor. The RHSM monitors the voltage of the sensor signal circuit to determine the temperature of the seat.
The temperature sensor varies in resistance based on the temperature of the heating element causing the signal voltage to change. Once the seat
reaches the set temperature, the RHSM will then cycle the control circuit of the heating elements ON and OFF in order to maintain the desired seat
temperature based on the feedback voltage from the sensor.
Conditions for Running the DTC
The RHSM must be powered.
Conditions for Setting the DTC
B1925 02 or B2170 02
The temperature sensor voltage drops below 0.80 V for more than 1 second.
B1925 05 or B2170 05
The temperature sensor voltage is greater than 5 V for more than 1 second.
Action Taken When the DTC Sets
The heated seat function for the affected seat will be disabled.
Conditions for Clearing the DTC
* The current DTC will clear 3 seconds after the reference voltage returns to normal operating range, and the ignition is cycled OFF then back
* 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 B1925 02
- Left Seat Cushion Heater Sensor Circuit Shorted to Ground
DTC B1925 05
- Left Seat Cushion Heater Sensor Circuit Shorted to Battery or Open
DTC B2170 02
- Right Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B2170 05
- Right Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
Diagnostic Fault Information
Circuit/System Description
The heated seat temperature sensor that set this diagnostic trouble code (DTC) is located in the seat cushion just under the seat cover with the seat
heating element. The rear heated seat module (RHSM) supplies a 5 V reference voltage through the temperature sensor signal circuit and a ground
through the low reference circuit to the sensor. The RHSM monitors the voltage of the sensor signal circuit to determine the temperature of the seat.
The temperature sensor varies in resistance based on the temperature of the heating element causing the signal voltage to change. Once the seat
reaches the set temperature, the RHSM will then cycle the control circuit of the heating elements ON and OFF in order to maintain the desired seat
temperature based on the feedback voltage from the sensor.
Conditions for Running the DTC
The RHSM must be powered.
Conditions for Setting the DTC
B1925 02 or B2170 02
The temperature sensor voltage drops below 0.80 V for more than 1 second.
B1925 05 or B2170 05
The temperature sensor voltage is greater than 5 V for more than 1 second.
Action Taken When the DTC Sets
The heated seat function for the affected seat will be disabled.
Conditions for Clearing the DTC
* The current DTC will clear 3 seconds after the reference voltage returns to normal operating range, and the ignition is cycled OFF then back
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 479
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 479
* 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 B1449 03
- Remote Device Voltage Below Threshold
DTC B1449 07
- Remote Device Voltage Above Threshold
Diagnostic Fault Information
Circuit/System Description
The infrared module is supplied with 10.5 volts from the rear audio/HVAC module when the rear audio system is active. The infrared module is
permanently grounded at G300.
Conditions for Running the DTC
* Ignition ON.
* Battery voltage must be between 9-16 volts.
Conditions for Setting the DTC
The DTC will set when the rear audio/HVAC module detects a short to voltage, short to ground, or an open/high resistance in the infrared module
voltage signal circuit.
Action Taken When the DTC Sets
The rear audio/HVAC module sets the DTC and the infrared module will be disabled.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.
Reference Information
Schematic Reference
Radio/Navigation System Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Radio/Navigation System
Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Video Entertainment System Description and Operation (Non-Headrest DVD Systems) (See: Accessories and Optional Equipment/Description
and Operation/Video Entertainment System Description and Operation (Non-Headrest DVD Systems))Video Entertainment System Description
and Operation (Dual Headrest DVD Systems) (See: Accessories and Optional Equipment/Description and Operation/Video Entertainment System
Description and Operation (Dual Headrest DVD Systems))
Electrical Information Reference
* 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
* 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 B1449 03
- Remote Device Voltage Below Threshold
DTC B1449 07
- Remote Device Voltage Above Threshold
Diagnostic Fault Information
Circuit/System Description
The infrared module is supplied with 10.5 volts from the rear audio/HVAC module when the rear audio system is active. The infrared module is
permanently grounded at G300.
Conditions for Running the DTC
* Ignition ON.
* Battery voltage must be between 9-16 volts.
Conditions for Setting the DTC
The DTC will set when the rear audio/HVAC module detects a short to voltage, short to ground, or an open/high resistance in the infrared module
voltage signal circuit.
Action Taken When the DTC Sets
The rear audio/HVAC module sets the DTC and the infrared module will be disabled.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.
Reference Information
Schematic Reference
Radio/Navigation System Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Radio/Navigation System
Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Video Entertainment System Description and Operation (Non-Headrest DVD Systems) (See: Accessories and Optional Equipment/Description
and Operation/Video Entertainment System Description and Operation (Non-Headrest DVD Systems))Video Entertainment System Description
and Operation (Dual Headrest DVD Systems) (See: Accessories and Optional Equipment/Description and Operation/Video Entertainment System
Description and Operation (Dual Headrest DVD Systems))
Electrical Information Reference
* 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
Tuesday, November 12, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 394
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 394
* 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 B1025 01
- Audio Output 1 Left Front Circuit Short to Battery
DTC B1025 02
- Audio Output 1 Left Front Circuit Short to Ground
DTC B1025 04
- Audio Output 1 Left Front Circuit Open
DTC B1035 01
- Audio Output 2 Right Front Circuit Short to Battery
DTC B1035 02
- Audio Output 2 Right Front Circuit Short to Ground
DTC B1035 04
- Audio Output 2 Right Front Circuit Open
DTC B1045 01
- Audio Output 3 Left Rear Circuit Short to Battery
DTC B1045 02
- Audio Output 3 Left Rear Circuit Short to Ground
DTC B1045 04
- Audio Output 3 Left Rear Circuit Open
DTC B1055 01
- Audio Output 4 Right Rear Circuit Short to Battery
DTC B1055 02
- Audio Output 4 Right Rear Circuit Short to Ground
DTC B1055 04
- Audio Output 4 Right Rear Circuit Open
DTC B1065 01
- Audio Output 5 Circuit Short to Battery (Center IP)
DTC B1065 02
- Audio Output 5 Circuit Short to Ground (Center IP)
DTC B1065 04
- Audio Output 5 Circuit Open (Center IP)
DTC B1075 01
- Audio Output 6 Circuit Short to Battery (Subwoofer)
DTC B1075 02
- Audio Output 6 Circuit Short to Ground (Subwoofer)
DTC B1075 04
- Audio Output 6 Circuit Open (Subwoofer)
DTC B1085 01
- Audio Output 7 Circuit Short to Battery (LR D-Pillar)
DTC B1085 02
- Audio Output 7 Circuit Short to Ground (LR D-Pillar)
DTC B1085 04
- Audio Output 7 Circuit Open (LR D-Pillar)
DTC B1095 01
- Audio Output 8 Circuit Short to Battery (RR D-Pillar)
* 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 B1025 01
- Audio Output 1 Left Front Circuit Short to Battery
DTC B1025 02
- Audio Output 1 Left Front Circuit Short to Ground
DTC B1025 04
- Audio Output 1 Left Front Circuit Open
DTC B1035 01
- Audio Output 2 Right Front Circuit Short to Battery
DTC B1035 02
- Audio Output 2 Right Front Circuit Short to Ground
DTC B1035 04
- Audio Output 2 Right Front Circuit Open
DTC B1045 01
- Audio Output 3 Left Rear Circuit Short to Battery
DTC B1045 02
- Audio Output 3 Left Rear Circuit Short to Ground
DTC B1045 04
- Audio Output 3 Left Rear Circuit Open
DTC B1055 01
- Audio Output 4 Right Rear Circuit Short to Battery
DTC B1055 02
- Audio Output 4 Right Rear Circuit Short to Ground
DTC B1055 04
- Audio Output 4 Right Rear Circuit Open
DTC B1065 01
- Audio Output 5 Circuit Short to Battery (Center IP)
DTC B1065 02
- Audio Output 5 Circuit Short to Ground (Center IP)
DTC B1065 04
- Audio Output 5 Circuit Open (Center IP)
DTC B1075 01
- Audio Output 6 Circuit Short to Battery (Subwoofer)
DTC B1075 02
- Audio Output 6 Circuit Short to Ground (Subwoofer)
DTC B1075 04
- Audio Output 6 Circuit Open (Subwoofer)
DTC B1085 01
- Audio Output 7 Circuit Short to Battery (LR D-Pillar)
DTC B1085 02
- Audio Output 7 Circuit Short to Ground (LR D-Pillar)
DTC B1085 04
- Audio Output 7 Circuit Open (LR D-Pillar)
DTC B1095 01
- Audio Output 8 Circuit Short to Battery (RR D-Pillar)
Monday, November 11, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 355
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 355
* 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 B0958 01
- Parking Aid Rear Sensor 1 Circuit Short to Battery
DTC B0958 06
- Parking Aid Rear Sensor 1 Circuit Short to Ground or Open
DTC B0958 08
- Parking Aid Rear Sensor 1 Circuit Signal Invalid
DTC B0958 21
- Parking Aid Rear Sensor 1 Circuit Incorrect Period
DTC B0958 3A
- Parking Aid Rear Sensor 1 Circuit Incorrect Component Installed
DTC B0959 01
- Parking Aid Rear Sensor 2 Circuit Short to Battery
DTC B0959 06
- Parking Aid Rear Sensor 2 Circuit Short to Ground or Open
DTC B0959 08
- Parking Aid Rear Sensor 2 Circuit Signal Invalid
DTC B0959 21
- Parking Aid Rear Sensor 2 Circuit Incorrect Period
DTC B0959 3A
- Parking Aid Rear Sensor 2 Circuit Incorrect Component Installed
DTC B0960 01
- Parking Aid Rear Sensor 3 Circuit Short to Battery
DTC B0960 06
- Parking Aid Rear Sensor 3 Circuit Short to Ground or Open
DTC B0960 08
- Parking Aid Rear Sensor 3 Circuit Signal Invalid
DTC B0960 21
- Parking Aid Rear Sensor 3 Circuit Incorrect Period
DTC B0960 3A
- Parking Aid Rear Sensor 3 Circuit Incorrect Component Installed
DTC B0961 01
- Parking Aid Rear Sensor 4 Circuit Short to Battery
DTC B0961 06
- Parking Aid Rear Sensor 4 Circuit Short to Ground or Open
DTC B0961 08
- Parking Aid Rear Sensor 4 Circuit Signal Invalid
DTC B0961 21
- Parking Aid Rear Sensor 4 Circuit Incorrect Period
DTC B0961 3A
- Parking Aid Rear Sensor 4 Circuit Incorrect Component Installed
Diagnostic Fault Information
* 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 B0958 01
- Parking Aid Rear Sensor 1 Circuit Short to Battery
DTC B0958 06
- Parking Aid Rear Sensor 1 Circuit Short to Ground or Open
DTC B0958 08
- Parking Aid Rear Sensor 1 Circuit Signal Invalid
DTC B0958 21
- Parking Aid Rear Sensor 1 Circuit Incorrect Period
DTC B0958 3A
- Parking Aid Rear Sensor 1 Circuit Incorrect Component Installed
DTC B0959 01
- Parking Aid Rear Sensor 2 Circuit Short to Battery
DTC B0959 06
- Parking Aid Rear Sensor 2 Circuit Short to Ground or Open
DTC B0959 08
- Parking Aid Rear Sensor 2 Circuit Signal Invalid
DTC B0959 21
- Parking Aid Rear Sensor 2 Circuit Incorrect Period
DTC B0959 3A
- Parking Aid Rear Sensor 2 Circuit Incorrect Component Installed
DTC B0960 01
- Parking Aid Rear Sensor 3 Circuit Short to Battery
DTC B0960 06
- Parking Aid Rear Sensor 3 Circuit Short to Ground or Open
DTC B0960 08
- Parking Aid Rear Sensor 3 Circuit Signal Invalid
DTC B0960 21
- Parking Aid Rear Sensor 3 Circuit Incorrect Period
DTC B0960 3A
- Parking Aid Rear Sensor 3 Circuit Incorrect Component Installed
DTC B0961 01
- Parking Aid Rear Sensor 4 Circuit Short to Battery
DTC B0961 06
- Parking Aid Rear Sensor 4 Circuit Short to Ground or Open
DTC B0961 08
- Parking Aid Rear Sensor 4 Circuit Signal Invalid
DTC B0961 21
- Parking Aid Rear Sensor 4 Circuit Incorrect Period
DTC B0961 3A
- Parking Aid Rear Sensor 4 Circuit Incorrect Component Installed
Diagnostic Fault Information
Saturday, November 9, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1477
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1477
* 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 P0B3C
- Hybrid Battery 1 Circuit Performance
DTC P0B41
- Hybrid Battery 2 Circuit Performance
DTC P0B46
- Hybrid Battery 3 Circuit Performance
DTC P0B4B
- Hybrid Battery 4 Circuit Performance
DTC P0B50
- Hybrid Battery 5 Circuit Performance
DTC P0B55
- Hybrid Battery 6 Circuit Performance
DTC P0B5A
- Hybrid Battery 7 Circuit Performance
DTC P0B5F
- Hybrid Battery 8 Circuit Performance
DTC P0B64
- Hybrid Battery 9 Circuit Performance
DTC P0B69
- Hybrid Battery 10 Circuit Performance
DTC P0B6E
- Hybrid Battery 11 Circuit Performance
DTC P0B73
- Hybrid Battery 12 Circuit Performance
DTC P0B78
- Hybrid Battery 13 Circuit Performance
DTC P0B7D
- Hybrid Battery 14 Circuit Performance
DTC P0B82
- Hybrid Battery 15 Circuit Performance
DTC P0B87
- Hybrid Battery 16 Circuit Performance
DTC P0B8C
- Hybrid Battery 17 Circuit Performance
DTC P0B91
- Hybrid Battery 18 Circuit Performance
DTC P0B96
- Hybrid Battery 19 Circuit Performance
DTC P0B9B
- Hybrid Battery 20 Circuit Performance
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
* 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 P0B3C
- Hybrid Battery 1 Circuit Performance
DTC P0B41
- Hybrid Battery 2 Circuit Performance
DTC P0B46
- Hybrid Battery 3 Circuit Performance
DTC P0B4B
- Hybrid Battery 4 Circuit Performance
DTC P0B50
- Hybrid Battery 5 Circuit Performance
DTC P0B55
- Hybrid Battery 6 Circuit Performance
DTC P0B5A
- Hybrid Battery 7 Circuit Performance
DTC P0B5F
- Hybrid Battery 8 Circuit Performance
DTC P0B64
- Hybrid Battery 9 Circuit Performance
DTC P0B69
- Hybrid Battery 10 Circuit Performance
DTC P0B6E
- Hybrid Battery 11 Circuit Performance
DTC P0B73
- Hybrid Battery 12 Circuit Performance
DTC P0B78
- Hybrid Battery 13 Circuit Performance
DTC P0B7D
- Hybrid Battery 14 Circuit Performance
DTC P0B82
- Hybrid Battery 15 Circuit Performance
DTC P0B87
- Hybrid Battery 16 Circuit Performance
DTC P0B8C
- Hybrid Battery 17 Circuit Performance
DTC P0B91
- Hybrid Battery 18 Circuit Performance
DTC P0B96
- Hybrid Battery 19 Circuit Performance
DTC P0B9B
- Hybrid Battery 20 Circuit Performance
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
Thursday, November 7, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1329
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1329
* 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 P0B3C
- Hybrid Battery 1 Circuit Performance
DTC P0B41
- Hybrid Battery 2 Circuit Performance
DTC P0B46
- Hybrid Battery 3 Circuit Performance
DTC P0B4B
- Hybrid Battery 4 Circuit Performance
DTC P0B50
- Hybrid Battery 5 Circuit Performance
DTC P0B55
- Hybrid Battery 6 Circuit Performance
DTC P0B5A
- Hybrid Battery 7 Circuit Performance
DTC P0B5F
- Hybrid Battery 8 Circuit Performance
DTC P0B64
- Hybrid Battery 9 Circuit Performance
DTC P0B69
- Hybrid Battery 10 Circuit Performance
DTC P0B6E
- Hybrid Battery 11 Circuit Performance
DTC P0B73
- Hybrid Battery 12 Circuit Performance
DTC P0B78
- Hybrid Battery 13 Circuit Performance
DTC P0B7D
- Hybrid Battery 14 Circuit Performance
DTC P0B82
- Hybrid Battery 15 Circuit Performance
DTC P0B87
- Hybrid Battery 16 Circuit Performance
DTC P0B8C
- Hybrid Battery 17 Circuit Performance
DTC P0B91
- Hybrid Battery 18 Circuit Performance
DTC P0B96
- Hybrid Battery 19 Circuit Performance
DTC P0B9B
- Hybrid Battery 20 Circuit Performance
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
* 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 P0B3C
- Hybrid Battery 1 Circuit Performance
DTC P0B41
- Hybrid Battery 2 Circuit Performance
DTC P0B46
- Hybrid Battery 3 Circuit Performance
DTC P0B4B
- Hybrid Battery 4 Circuit Performance
DTC P0B50
- Hybrid Battery 5 Circuit Performance
DTC P0B55
- Hybrid Battery 6 Circuit Performance
DTC P0B5A
- Hybrid Battery 7 Circuit Performance
DTC P0B5F
- Hybrid Battery 8 Circuit Performance
DTC P0B64
- Hybrid Battery 9 Circuit Performance
DTC P0B69
- Hybrid Battery 10 Circuit Performance
DTC P0B6E
- Hybrid Battery 11 Circuit Performance
DTC P0B73
- Hybrid Battery 12 Circuit Performance
DTC P0B78
- Hybrid Battery 13 Circuit Performance
DTC P0B7D
- Hybrid Battery 14 Circuit Performance
DTC P0B82
- Hybrid Battery 15 Circuit Performance
DTC P0B87
- Hybrid Battery 16 Circuit Performance
DTC P0B8C
- Hybrid Battery 17 Circuit Performance
DTC P0B91
- Hybrid Battery 18 Circuit Performance
DTC P0B96
- Hybrid Battery 19 Circuit Performance
DTC P0B9B
- Hybrid Battery 20 Circuit Performance
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
Wednesday, November 6, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1229
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1229
* 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 P0A2B
- Drive Motor 1 Temperature Sensor Performance
DTC P0A2C
- Drive Motor 1 Temperature Sensor Circuit Low Voltage
DTC P0A2D
- Drive Motor 1 Temperature Sensor Circuit High Voltage
DTC P0A31
- Drive Motor 2 Temperature Sensor Performance
DTC P0A32
- Drive Motor 2 Temperature Sensor Circuit Low Voltage
DTC P0A33
- Drive Motor 2 Temperature Sensor Circuit High Voltage
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The motor temperature sensor (MTS) is a non-serviceable part of the drive motor generator assembly. The MTS sensor is a thermistor, or a resistor
that changes value when the temperature changes. The sensor has a negative-temperature coefficient. This means that as the temperature increases,
the resistance decreases, and as the temperature decreases, the resistance increases. The motor control module (MCM) supplies about a 5-volt
reference signal to the sensor and measures the voltage drop in the circuit. When the motor is cold, the sensor resistance is high and the MCM
detects high signal voltage. As the motor temperature increases, the resistance of the sensor decreases, which lowers the signal voltage.
Conditions for Running the DTC
P0A2B and P0A31
* DTCs P0A2C, P0A2D, P0AEF, P0AF0, P0BD3, P0BD4, P0BDD, P0BDE are not set.
* Ignition ON after the engine has been OFF for at least 6 hours.
* Average of phase U, V, W inverter temperatures is greater than -12掳C (+10掳F).
* Motor temperature is greater than -40掳C (-40掳F).
P0A2C, P0A2D, P0A32 and P0A33
The ignition is ON.
Conditions for Setting the DTC
P0A2B and P0A31
* The average of the three motor phase sensor temperatures and the motor temperature are not within 28掳C (50掳F) of each other at ignition ON.
* The DTC sets within 3 seconds when the above condition is met.
P0A2C and P0A32
* Motor temperature sensor signal is less than 0.29V.
* The DTC sets within 3 seconds when the above condition is met.
* 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 P0A2B
- Drive Motor 1 Temperature Sensor Performance
DTC P0A2C
- Drive Motor 1 Temperature Sensor Circuit Low Voltage
DTC P0A2D
- Drive Motor 1 Temperature Sensor Circuit High Voltage
DTC P0A31
- Drive Motor 2 Temperature Sensor Performance
DTC P0A32
- Drive Motor 2 Temperature Sensor Circuit Low Voltage
DTC P0A33
- Drive Motor 2 Temperature Sensor Circuit High Voltage
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The motor temperature sensor (MTS) is a non-serviceable part of the drive motor generator assembly. The MTS sensor is a thermistor, or a resistor
that changes value when the temperature changes. The sensor has a negative-temperature coefficient. This means that as the temperature increases,
the resistance decreases, and as the temperature decreases, the resistance increases. The motor control module (MCM) supplies about a 5-volt
reference signal to the sensor and measures the voltage drop in the circuit. When the motor is cold, the sensor resistance is high and the MCM
detects high signal voltage. As the motor temperature increases, the resistance of the sensor decreases, which lowers the signal voltage.
Conditions for Running the DTC
P0A2B and P0A31
* DTCs P0A2C, P0A2D, P0AEF, P0AF0, P0BD3, P0BD4, P0BDD, P0BDE are not set.
* Ignition ON after the engine has been OFF for at least 6 hours.
* Average of phase U, V, W inverter temperatures is greater than -12掳C (+10掳F).
* Motor temperature is greater than -40掳C (-40掳F).
P0A2C, P0A2D, P0A32 and P0A33
The ignition is ON.
Conditions for Setting the DTC
P0A2B and P0A31
* The average of the three motor phase sensor temperatures and the motor temperature are not within 28掳C (50掳F) of each other at ignition ON.
* The DTC sets within 3 seconds when the above condition is met.
P0A2C and P0A32
* Motor temperature sensor signal is less than 0.29V.
* The DTC sets within 3 seconds when the above condition is met.
Tuesday, November 5, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1155
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1155
* 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 P0A9C
- Hybrid Battery 1 Temperature Sensor Performance
DTC P0A9D
- Hybrid Battery 1 Temperature Sensor Circuit Low Voltage
DTC P0A9E
- Hybrid Battery 1 Temperature Sensor Circuit High Voltage
DTC P0AC6
- Hybrid Battery 2 Temperature Sensor Performance
DTC P0AC7
- Hybrid Battery 2 Temperature Sensor Circuit Low Voltage
DTC P0AC8
- Hybrid Battery 2 Temperature Sensor Circuit High Voltage
DTC P0ACB
- Hybrid Battery 3 Temperature Sensor Performance
DTC P0ACC
- Hybrid Battery 3 Temperature Sensor Circuit Low Voltage
DTC P0ACD
- Hybrid Battery 3 Temperature Sensor Circuit High Voltage
DTC P0AE9
- Hybrid Battery 4 Temperature Sensor Performance
DTC P0AEA
- Hybrid Battery 4 Temperature Sensor Circuit Low Voltage
DTC P0AEB
- Hybrid Battery 4 Temperature Sensor Circuit High Voltage
Typical Scan Tool Data
Circuit/System Description
The drive motor generator battery has four hybrid battery temperature sensors. The hybrid battery temperature sensors are located on the top of the
hybrid batteries. The temperature sensor is a variable resistor that measures the temperature of the hybrid batteries. The control module supplies 5 V
to the signal circuit and a ground for the low reference circuit. The hybrid battery temperature sensor resistance changes with battery temperature.
The lower the temperature, the higher the resistance of the sensor. The higher the temperature, the lower the resistance of the sensor. The drive
motor generator battery control module (BECM) uses the battery temperature sensors to determine the hybrid battery temperature to control the
battery cooling fan operation.
Conditions for Running the DTC
* The ignition is ON.
* The 12 V battery voltage is 9-18 V.
Conditions for Setting the DTC
P0A9C, P0AC6, P0ACB, and P0AE9
* 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 P0A9C
- Hybrid Battery 1 Temperature Sensor Performance
DTC P0A9D
- Hybrid Battery 1 Temperature Sensor Circuit Low Voltage
DTC P0A9E
- Hybrid Battery 1 Temperature Sensor Circuit High Voltage
DTC P0AC6
- Hybrid Battery 2 Temperature Sensor Performance
DTC P0AC7
- Hybrid Battery 2 Temperature Sensor Circuit Low Voltage
DTC P0AC8
- Hybrid Battery 2 Temperature Sensor Circuit High Voltage
DTC P0ACB
- Hybrid Battery 3 Temperature Sensor Performance
DTC P0ACC
- Hybrid Battery 3 Temperature Sensor Circuit Low Voltage
DTC P0ACD
- Hybrid Battery 3 Temperature Sensor Circuit High Voltage
DTC P0AE9
- Hybrid Battery 4 Temperature Sensor Performance
DTC P0AEA
- Hybrid Battery 4 Temperature Sensor Circuit Low Voltage
DTC P0AEB
- Hybrid Battery 4 Temperature Sensor Circuit High Voltage
Typical Scan Tool Data
Circuit/System Description
The drive motor generator battery has four hybrid battery temperature sensors. The hybrid battery temperature sensors are located on the top of the
hybrid batteries. The temperature sensor is a variable resistor that measures the temperature of the hybrid batteries. The control module supplies 5 V
to the signal circuit and a ground for the low reference circuit. The hybrid battery temperature sensor resistance changes with battery temperature.
The lower the temperature, the higher the resistance of the sensor. The higher the temperature, the lower the resistance of the sensor. The drive
motor generator battery control module (BECM) uses the battery temperature sensors to determine the hybrid battery temperature to control the
battery cooling fan operation.
Conditions for Running the DTC
* The ignition is ON.
* The 12 V battery voltage is 9-18 V.
Conditions for Setting the DTC
P0A9C, P0AC6, P0ACB, and P0AE9
Saturday, November 2, 2019
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1904
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1904
* 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 P0131
- HO2S Circuit Low Voltage Bank 1 Sensor 1
DTC P0132
- HO2S Circuit High Voltage Bank 1 Sensor 1
DTC P0137
- HO2S Circuit Low Voltage Bank 1 Sensor 2
DTC P0138
- HO2S Circuit High Voltage Bank 1 Sensor 2
DTC P0151
- HO2S Circuit Low Voltage Bank 2 Sensor 1
DTC P0152
- HO2S Circuit High Voltage Bank 2 Sensor 1
DTC P0157
- HO2S Circuit Low Voltage Bank 2 Sensor 2
DTC P0158
- HO2S Circuit High Voltage Bank 2 Sensor 2
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The heated oxygen sensors (HO2S) are used for fuel control and catalyst monitoring. Each HO2S compares the oxygen content of the surrounding
air with the oxygen content of the exhaust stream. When the engine is started, the control module operates in an Open Loop mode, ignoring the
HO2S signal voltage while calculating the air-to-fuel ratio. While the engine runs, the HO2S heats up and begins to generate a voltage within a
range of 0-1,275 mV. Once sufficient HO2S voltage fluctuation is observed by the control module, Closed Loop is entered. The control module
uses the HO2S voltage to determine the air-to-fuel ratio. An HO2S voltage that increases toward 1,000 mV indicates a rich fuel mixture. An HO2S
voltage that decreases toward 0 mV indicates a lean fuel mixture.
The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed
Loop earlier and the control module to calculate the air-to-fuel ratio sooner.
Conditions for Running the DTC
* 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 P0131
- HO2S Circuit Low Voltage Bank 1 Sensor 1
DTC P0132
- HO2S Circuit High Voltage Bank 1 Sensor 1
DTC P0137
- HO2S Circuit Low Voltage Bank 1 Sensor 2
DTC P0138
- HO2S Circuit High Voltage Bank 1 Sensor 2
DTC P0151
- HO2S Circuit Low Voltage Bank 2 Sensor 1
DTC P0152
- HO2S Circuit High Voltage Bank 2 Sensor 1
DTC P0157
- HO2S Circuit Low Voltage Bank 2 Sensor 2
DTC P0158
- HO2S Circuit High Voltage Bank 2 Sensor 2
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The heated oxygen sensors (HO2S) are used for fuel control and catalyst monitoring. Each HO2S compares the oxygen content of the surrounding
air with the oxygen content of the exhaust stream. When the engine is started, the control module operates in an Open Loop mode, ignoring the
HO2S signal voltage while calculating the air-to-fuel ratio. While the engine runs, the HO2S heats up and begins to generate a voltage within a
range of 0-1,275 mV. Once sufficient HO2S voltage fluctuation is observed by the control module, Closed Loop is entered. The control module
uses the HO2S voltage to determine the air-to-fuel ratio. An HO2S voltage that increases toward 1,000 mV indicates a rich fuel mixture. An HO2S
voltage that decreases toward 0 mV indicates a lean fuel mixture.
The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed
Loop earlier and the control module to calculate the air-to-fuel ratio sooner.
Conditions for Running the DTC
Friday, November 1, 2019
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1838
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1838
* 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 P079B
- Transmission Clutch 2 Slip Detected
Circuit/System Description
The transmission control module monitors hybrid direct, 2-3-4 clutch slip speed when the hybrid direct, 2-3-4 clutch is applied. The hybrid direct,
2-3-4 clutch is displayed as Clutch 2 on the scan tool. The transmission control module is part of the control solenoid valve assembly and is not
serviced separately.
Conditions for Running the DTC
* Hybrid direct, 2-3-4 clutch is applied.
* The clutch pressure control solenoid 3 commanded pressure is 1800 kPa (261 psi) for 3 seconds.
Conditions for Setting the DTC
The transmission control module detects the hybrid direct, 2-3-4 clutch slip speed is greater than 200 RPM for 3 seconds.
Action Taken When the DTC Sets
* P079B is a Type B DTC.
* The transmission control module inhibits gear 2, gear 3, gear 4 and EVT 2.
Conditions for Clearing the DTC
P079B is a Type B DTC.
Diagnostic Aids
When attempting to set transmission performance DTCs, observe the Freeze Frame and Failure Records to assist in duplicating the failure
conditions. Ensure the transmission fluid level is correct and there are no leaks. If there are any other transmission DTCs set, diagnose those first.
Reference Information
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Circuit/System Verification
1. Verify that DTCs P0721, P0722, P0723, P0966, P0967, P0969, P0970, P0971, P0973, P0974, P0976, P0977, P2720, P2721, P2728, P2729,
or P2730 is not set.
锟斤拷If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code
Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).
2. Perform the Transmission Fluid Level and Condition Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing
and Inspection/Symptom Related Diagnostic Procedures/2ML70 - Automatic Transmission/Transmission Fluid Level and Condition Check)
to verify correct fluid level.
3. Perform the Line Pressure Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component
Tests and General Diagnostics/2ML70 - Automatic Transmission/Line Pressure Check) to verify correct oil pressure.
4. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/2ML70 - Automatic Transmission/Control
Solenoid Valve and Transmission Control Module Assembly Inspection) to verify control solenoid valve assembly condition.
5. Perform the Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test (See: Transmission and
Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/2ML70 - Automatic
Transmission/Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test) to verify control solenoid
valve assembly function.
6. Inspect the trans fluid pump ball check valve for possible sticking or damage.
锟斤拷If the check ball is stuck or damaged, replace the check ball.
7. Inspect the hybrid direct, 2-3-4 clutch regulator valve for sticking or damage.
锟斤拷If you found a concern with the hybrid direct, 2-3-4 clutch regulator valve, repair or replace the valve or valve body.
* 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 P079B
- Transmission Clutch 2 Slip Detected
Circuit/System Description
The transmission control module monitors hybrid direct, 2-3-4 clutch slip speed when the hybrid direct, 2-3-4 clutch is applied. The hybrid direct,
2-3-4 clutch is displayed as Clutch 2 on the scan tool. The transmission control module is part of the control solenoid valve assembly and is not
serviced separately.
Conditions for Running the DTC
* Hybrid direct, 2-3-4 clutch is applied.
* The clutch pressure control solenoid 3 commanded pressure is 1800 kPa (261 psi) for 3 seconds.
Conditions for Setting the DTC
The transmission control module detects the hybrid direct, 2-3-4 clutch slip speed is greater than 200 RPM for 3 seconds.
Action Taken When the DTC Sets
* P079B is a Type B DTC.
* The transmission control module inhibits gear 2, gear 3, gear 4 and EVT 2.
Conditions for Clearing the DTC
P079B is a Type B DTC.
Diagnostic Aids
When attempting to set transmission performance DTCs, observe the Freeze Frame and Failure Records to assist in duplicating the failure
conditions. Ensure the transmission fluid level is correct and there are no leaks. If there are any other transmission DTCs set, diagnose those first.
Reference Information
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code
(DTC) Type Definitions)
Circuit/System Verification
1. Verify that DTCs P0721, P0722, P0723, P0966, P0967, P0969, P0970, P0971, P0973, P0974, P0976, P0977, P2720, P2721, P2728, P2729,
or P2730 is not set.
锟斤拷If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code
Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).
2. Perform the Transmission Fluid Level and Condition Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing
and Inspection/Symptom Related Diagnostic Procedures/2ML70 - Automatic Transmission/Transmission Fluid Level and Condition Check)
to verify correct fluid level.
3. Perform the Line Pressure Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component
Tests and General Diagnostics/2ML70 - Automatic Transmission/Line Pressure Check) to verify correct oil pressure.
4. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/2ML70 - Automatic Transmission/Control
Solenoid Valve and Transmission Control Module Assembly Inspection) to verify control solenoid valve assembly condition.
5. Perform the Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test (See: Transmission and
Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/2ML70 - Automatic
Transmission/Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test) to verify control solenoid
valve assembly function.
6. Inspect the trans fluid pump ball check valve for possible sticking or damage.
锟斤拷If the check ball is stuck or damaged, replace the check ball.
7. Inspect the hybrid direct, 2-3-4 clutch regulator valve for sticking or damage.
锟斤拷If you found a concern with the hybrid direct, 2-3-4 clutch regulator valve, repair or replace the valve or valve body.
Thursday, October 31, 2019
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 3133
2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 3133
* 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 U2142 00
- Lost Communication With Yaw Rate Sensor (YRS)
Circuit/System Description
Modules connected to the CAN bus serial data circuits monitor for serial data communications during normal vehicle operation. Operating
information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be
exchanged on the serial data circuits. The messages are supervised and also, some periodic messages are used by the receiver module as an
availability indication of the transmitter module. Each message contains the identification number of the transmitter module.
The electronic brake control module (EBCM) activates the other modules connected to the CAN serial data circuits by applying voltage when the
ignition key is in ACC, ON or START. The EBCM, Yaw Rate and Lateral Acceleration Sensor are the only modules connected to the CAN bus
serial data circuits. For more information on CAN bus serial data refer to Data Link Communications Description and Operation (See: Powertrain
Management/Computers and Control Systems/Information Bus/Description and Operation).
Conditions for Running the DTC
* The system voltage is between 9-16 volts.
* The vehicle power mode master requires serial data communication to occur.
Conditions for Setting the DTC
A supervised periodic message that includes the transmitter module availability has not been received.
Action Taken When the DTC Sets
* The vehicle stability enhancement system (VSES), if equipped, and traction control system (TCS) will not function.
* System OFF lamps will illuminate for these systems.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Diagnostic Aids
* Sometimes, while diagnosing a specific customer concern or after a repair, you may notice a history U-code present. However, there is no
associated "current" or "active" status. Loss-of- communication U-codes such as these can set for a variety of reasons. Many times, they are
transparent to the vehicle operator and technician, and/or have no associated symptoms. Eventually, they will erase themselves automatically
after a number of fault-free ignition cycles. This condition would most likely be attributed to one of these scenarios:
- A control module on the data communication circuit was disconnected while the communication circuit is awake.
- Power to one or more modules was interrupted during diagnosis.
- A low battery condition was present, so some control modules stop communicating when battery voltage drops below a certain threshold.
- Battery power was restored to the vehicle and control modules on the communication circuit did not all re-initialize at the same time.
- If a loss-of-communication U-code appears in history for no apparent reason, it is most likely associated with one of the scenarios above.
These are all temporary conditions and should never be interpreted as an intermittent fault, causing you to replace a part.
* A control module may have a U-code stored in history that does not require any repairs. Issues with late or corrupted messages between
control modules can be temporary with no apparent symptom or complaint; this does not mean the control module is faulty. Do not replace a
control module based only on a history U-code.
* Do not replace a control module reporting a U-code. The U-code identifies which control module needs to be diagnosed for a communication
issue.
* Communication may be available between the BCM and the scan tool with either the low or high speed GMLAN serial data system
inoperative. This condition is due to the BCM using both the low and high speed GMLAN systems.
* Use to determine if the module uses high or low speed GMLAN serial data communications.
* Some control modules may not have internal protection for specific control circuits and may open a B+ or ignition fuse. If a fuse is open and
the B+ or ignition circuit is not shorted to ground, ensure none of the control circuits are shorted to ground before replacing the control
module.
* This diagnostic can be used for any control module that is not communicating, regardless of the type of serial data circuit it is connected to,
providing the vehicle is equipped with the control module.
* 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 U2142 00
- Lost Communication With Yaw Rate Sensor (YRS)
Circuit/System Description
Modules connected to the CAN bus serial data circuits monitor for serial data communications during normal vehicle operation. Operating
information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be
exchanged on the serial data circuits. The messages are supervised and also, some periodic messages are used by the receiver module as an
availability indication of the transmitter module. Each message contains the identification number of the transmitter module.
The electronic brake control module (EBCM) activates the other modules connected to the CAN serial data circuits by applying voltage when the
ignition key is in ACC, ON or START. The EBCM, Yaw Rate and Lateral Acceleration Sensor are the only modules connected to the CAN bus
serial data circuits. For more information on CAN bus serial data refer to Data Link Communications Description and Operation (See: Powertrain
Management/Computers and Control Systems/Information Bus/Description and Operation).
Conditions for Running the DTC
* The system voltage is between 9-16 volts.
* The vehicle power mode master requires serial data communication to occur.
Conditions for Setting the DTC
A supervised periodic message that includes the transmitter module availability has not been received.
Action Taken When the DTC Sets
* The vehicle stability enhancement system (VSES), if equipped, and traction control system (TCS) will not function.
* System OFF lamps will illuminate for these systems.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Diagnostic Aids
* Sometimes, while diagnosing a specific customer concern or after a repair, you may notice a history U-code present. However, there is no
associated "current" or "active" status. Loss-of- communication U-codes such as these can set for a variety of reasons. Many times, they are
transparent to the vehicle operator and technician, and/or have no associated symptoms. Eventually, they will erase themselves automatically
after a number of fault-free ignition cycles. This condition would most likely be attributed to one of these scenarios:
- A control module on the data communication circuit was disconnected while the communication circuit is awake.
- Power to one or more modules was interrupted during diagnosis.
- A low battery condition was present, so some control modules stop communicating when battery voltage drops below a certain threshold.
- Battery power was restored to the vehicle and control modules on the communication circuit did not all re-initialize at the same time.
- If a loss-of-communication U-code appears in history for no apparent reason, it is most likely associated with one of the scenarios above.
These are all temporary conditions and should never be interpreted as an intermittent fault, causing you to replace a part.
* A control module may have a U-code stored in history that does not require any repairs. Issues with late or corrupted messages between
control modules can be temporary with no apparent symptom or complaint; this does not mean the control module is faulty. Do not replace a
control module based only on a history U-code.
* Do not replace a control module reporting a U-code. The U-code identifies which control module needs to be diagnosed for a communication
issue.
* Communication may be available between the BCM and the scan tool with either the low or high speed GMLAN serial data system
inoperative. This condition is due to the BCM using both the low and high speed GMLAN systems.
* Use to determine if the module uses high or low speed GMLAN serial data communications.
* Some control modules may not have internal protection for specific control circuits and may open a B+ or ignition fuse. If a fuse is open and
the B+ or ignition circuit is not shorted to ground, ensure none of the control circuits are shorted to ground before replacing the control
module.
* This diagnostic can be used for any control module that is not communicating, regardless of the type of serial data circuit it is connected to,
providing the vehicle is equipped with the control module.
Tuesday, October 29, 2019
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1477
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1477
* 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 P0B3C
- Hybrid Battery 1 Circuit Performance
DTC P0B41
- Hybrid Battery 2 Circuit Performance
DTC P0B46
- Hybrid Battery 3 Circuit Performance
DTC P0B4B
- Hybrid Battery 4 Circuit Performance
DTC P0B50
- Hybrid Battery 5 Circuit Performance
DTC P0B55
- Hybrid Battery 6 Circuit Performance
DTC P0B5A
- Hybrid Battery 7 Circuit Performance
DTC P0B5F
- Hybrid Battery 8 Circuit Performance
DTC P0B64
- Hybrid Battery 9 Circuit Performance
DTC P0B69
- Hybrid Battery 10 Circuit Performance
DTC P0B6E
- Hybrid Battery 11 Circuit Performance
DTC P0B73
- Hybrid Battery 12 Circuit Performance
DTC P0B78
- Hybrid Battery 13 Circuit Performance
DTC P0B7D
- Hybrid Battery 14 Circuit Performance
DTC P0B82
- Hybrid Battery 15 Circuit Performance
DTC P0B87
- Hybrid Battery 16 Circuit Performance
DTC P0B8C
- Hybrid Battery 17 Circuit Performance
DTC P0B91
- Hybrid Battery 18 Circuit Performance
DTC P0B96
- Hybrid Battery 19 Circuit Performance
DTC P0B9B
- Hybrid Battery 20 Circuit Performance
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
* 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 P0B3C
- Hybrid Battery 1 Circuit Performance
DTC P0B41
- Hybrid Battery 2 Circuit Performance
DTC P0B46
- Hybrid Battery 3 Circuit Performance
DTC P0B4B
- Hybrid Battery 4 Circuit Performance
DTC P0B50
- Hybrid Battery 5 Circuit Performance
DTC P0B55
- Hybrid Battery 6 Circuit Performance
DTC P0B5A
- Hybrid Battery 7 Circuit Performance
DTC P0B5F
- Hybrid Battery 8 Circuit Performance
DTC P0B64
- Hybrid Battery 9 Circuit Performance
DTC P0B69
- Hybrid Battery 10 Circuit Performance
DTC P0B6E
- Hybrid Battery 11 Circuit Performance
DTC P0B73
- Hybrid Battery 12 Circuit Performance
DTC P0B78
- Hybrid Battery 13 Circuit Performance
DTC P0B7D
- Hybrid Battery 14 Circuit Performance
DTC P0B82
- Hybrid Battery 15 Circuit Performance
DTC P0B87
- Hybrid Battery 16 Circuit Performance
DTC P0B8C
- Hybrid Battery 17 Circuit Performance
DTC P0B91
- Hybrid Battery 18 Circuit Performance
DTC P0B96
- Hybrid Battery 19 Circuit Performance
DTC P0B9B
- Hybrid Battery 20 Circuit Performance
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
Sunday, October 27, 2019
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1329
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1329
* 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 P0B3C
- Hybrid Battery 1 Circuit Performance
DTC P0B41
- Hybrid Battery 2 Circuit Performance
DTC P0B46
- Hybrid Battery 3 Circuit Performance
DTC P0B4B
- Hybrid Battery 4 Circuit Performance
DTC P0B50
- Hybrid Battery 5 Circuit Performance
DTC P0B55
- Hybrid Battery 6 Circuit Performance
DTC P0B5A
- Hybrid Battery 7 Circuit Performance
DTC P0B5F
- Hybrid Battery 8 Circuit Performance
DTC P0B64
- Hybrid Battery 9 Circuit Performance
DTC P0B69
- Hybrid Battery 10 Circuit Performance
DTC P0B6E
- Hybrid Battery 11 Circuit Performance
DTC P0B73
- Hybrid Battery 12 Circuit Performance
DTC P0B78
- Hybrid Battery 13 Circuit Performance
DTC P0B7D
- Hybrid Battery 14 Circuit Performance
DTC P0B82
- Hybrid Battery 15 Circuit Performance
DTC P0B87
- Hybrid Battery 16 Circuit Performance
DTC P0B8C
- Hybrid Battery 17 Circuit Performance
DTC P0B91
- Hybrid Battery 18 Circuit Performance
DTC P0B96
- Hybrid Battery 19 Circuit Performance
DTC P0B9B
- Hybrid Battery 20 Circuit Performance
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
* 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 P0B3C
- Hybrid Battery 1 Circuit Performance
DTC P0B41
- Hybrid Battery 2 Circuit Performance
DTC P0B46
- Hybrid Battery 3 Circuit Performance
DTC P0B4B
- Hybrid Battery 4 Circuit Performance
DTC P0B50
- Hybrid Battery 5 Circuit Performance
DTC P0B55
- Hybrid Battery 6 Circuit Performance
DTC P0B5A
- Hybrid Battery 7 Circuit Performance
DTC P0B5F
- Hybrid Battery 8 Circuit Performance
DTC P0B64
- Hybrid Battery 9 Circuit Performance
DTC P0B69
- Hybrid Battery 10 Circuit Performance
DTC P0B6E
- Hybrid Battery 11 Circuit Performance
DTC P0B73
- Hybrid Battery 12 Circuit Performance
DTC P0B78
- Hybrid Battery 13 Circuit Performance
DTC P0B7D
- Hybrid Battery 14 Circuit Performance
DTC P0B82
- Hybrid Battery 15 Circuit Performance
DTC P0B87
- Hybrid Battery 16 Circuit Performance
DTC P0B8C
- Hybrid Battery 17 Circuit Performance
DTC P0B91
- Hybrid Battery 18 Circuit Performance
DTC P0B96
- Hybrid Battery 19 Circuit Performance
DTC P0B9B
- Hybrid Battery 20 Circuit Performance
Circuit/System Description
The system contains twenty battery modules. Each module contains two 7.2 V cells for a total nominal system voltage of 288 V. Each battery
module is rated at 14.4 V direct current (DC) and all the modules are connected together in series. The drive motor generator battery is also referred
to as the hybrid battery. The drive motor generator battery control module is also referred to as the battery energy control module (BECM). The
Saturday, October 26, 2019
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1229
2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1229
* 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 P0A2B
- Drive Motor 1 Temperature Sensor Performance
DTC P0A2C
- Drive Motor 1 Temperature Sensor Circuit Low Voltage
DTC P0A2D
- Drive Motor 1 Temperature Sensor Circuit High Voltage
DTC P0A31
- Drive Motor 2 Temperature Sensor Performance
DTC P0A32
- Drive Motor 2 Temperature Sensor Circuit Low Voltage
DTC P0A33
- Drive Motor 2 Temperature Sensor Circuit High Voltage
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The motor temperature sensor (MTS) is a non-serviceable part of the drive motor generator assembly. The MTS sensor is a thermistor, or a resistor
that changes value when the temperature changes. The sensor has a negative-temperature coefficient. This means that as the temperature increases,
the resistance decreases, and as the temperature decreases, the resistance increases. The motor control module (MCM) supplies about a 5-volt
reference signal to the sensor and measures the voltage drop in the circuit. When the motor is cold, the sensor resistance is high and the MCM
detects high signal voltage. As the motor temperature increases, the resistance of the sensor decreases, which lowers the signal voltage.
Conditions for Running the DTC
P0A2B and P0A31
* DTCs P0A2C, P0A2D, P0AEF, P0AF0, P0BD3, P0BD4, P0BDD, P0BDE are not set.
* Ignition ON after the engine has been OFF for at least 6 hours.
* Average of phase U, V, W inverter temperatures is greater than -12锟斤拷C (+10锟斤拷F).
* Motor temperature is greater than -40锟斤拷C (-40锟斤拷F).
P0A2C, P0A2D, P0A32 and P0A33
The ignition is ON.
Conditions for Setting the DTC
P0A2B and P0A31
* The average of the three motor phase sensor temperatures and the motor temperature are not within 28锟斤拷C (50锟斤拷F) of each other at ignition ON.
* The DTC sets within 3 seconds when the above condition is met.
P0A2C and P0A32
* Motor temperature sensor signal is less than 0.29V.
* The DTC sets within 3 seconds when the above condition is met.
* 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 P0A2B
- Drive Motor 1 Temperature Sensor Performance
DTC P0A2C
- Drive Motor 1 Temperature Sensor Circuit Low Voltage
DTC P0A2D
- Drive Motor 1 Temperature Sensor Circuit High Voltage
DTC P0A31
- Drive Motor 2 Temperature Sensor Performance
DTC P0A32
- Drive Motor 2 Temperature Sensor Circuit Low Voltage
DTC P0A33
- Drive Motor 2 Temperature Sensor Circuit High Voltage
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The motor temperature sensor (MTS) is a non-serviceable part of the drive motor generator assembly. The MTS sensor is a thermistor, or a resistor
that changes value when the temperature changes. The sensor has a negative-temperature coefficient. This means that as the temperature increases,
the resistance decreases, and as the temperature decreases, the resistance increases. The motor control module (MCM) supplies about a 5-volt
reference signal to the sensor and measures the voltage drop in the circuit. When the motor is cold, the sensor resistance is high and the MCM
detects high signal voltage. As the motor temperature increases, the resistance of the sensor decreases, which lowers the signal voltage.
Conditions for Running the DTC
P0A2B and P0A31
* DTCs P0A2C, P0A2D, P0AEF, P0AF0, P0BD3, P0BD4, P0BDD, P0BDE are not set.
* Ignition ON after the engine has been OFF for at least 6 hours.
* Average of phase U, V, W inverter temperatures is greater than -12锟斤拷C (+10锟斤拷F).
* Motor temperature is greater than -40锟斤拷C (-40锟斤拷F).
P0A2C, P0A2D, P0A32 and P0A33
The ignition is ON.
Conditions for Setting the DTC
P0A2B and P0A31
* The average of the three motor phase sensor temperatures and the motor temperature are not within 28锟斤拷C (50锟斤拷F) of each other at ignition ON.
* The DTC sets within 3 seconds when the above condition is met.
P0A2C and P0A32
* Motor temperature sensor signal is less than 0.29V.
* The DTC sets within 3 seconds when the above condition is met.
Subscribe to:
Posts (Atom)