Showing posts with label Repair Instructions. Show all posts
Showing posts with label Repair Instructions. Show all posts

Monday, December 16, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 911

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 911

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

C12F6

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

DTC C121E

- EBCM Unimplemented Interrupt

DTC C121F

- EBCM Unexpected Exception

DTC C123A

- EBCM High End Timer Watchdog

DTC C123B

- EBCM High End Timer Program Overflow

DTC C123C

- EBCM High End Timer RAM Fault

DTC C123D

- EBCM Solenoid Timeout

DTC C123E

- EBCM High End Timer Periodic Interrupt

DTC C123F

- EBCM Serial Peripheral Interface Inoperative

DTC C1255

- Electronic Control Unit Performance

DTC C1256

- Program ROM Checksum Error

Sunday, December 15, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 901

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 901

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

C12F3

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

DTC C121E

- EBCM Unimplemented Interrupt

DTC C121F

- EBCM Unexpected Exception

DTC C123A

- EBCM High End Timer Watchdog

DTC C123B

- EBCM High End Timer Program Overflow

DTC C123C

- EBCM High End Timer RAM Fault

DTC C123D

- EBCM Solenoid Timeout

DTC C123E

- EBCM High End Timer Periodic Interrupt

DTC C123F

- EBCM Serial Peripheral Interface Inoperative

DTC C1255

- Electronic Control Unit Performance

DTC C1256

- Program ROM Checksum Error

Saturday, December 14, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 869

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 869

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

C12D9

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

DTC C121E

- EBCM Unimplemented Interrupt

DTC C121F

- EBCM Unexpected Exception

DTC C123A

- EBCM High End Timer Watchdog

DTC C123B

- EBCM High End Timer Program Overflow

DTC C123C

- EBCM High End Timer RAM Fault

DTC C123D

- EBCM Solenoid Timeout

DTC C123E

- EBCM High End Timer Periodic Interrupt

DTC C123F

- EBCM Serial Peripheral Interface Inoperative

DTC C1255

- Electronic Control Unit Performance

DTC C1256

- Program ROM Checksum Error

Friday, December 13, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 859

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 859

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

C12D6

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

DTC C121E

- EBCM Unimplemented Interrupt

DTC C121F

- EBCM Unexpected Exception

DTC C123A

- EBCM High End Timer Watchdog

DTC C123B

- EBCM High End Timer Program Overflow

DTC C123C

- EBCM High End Timer RAM Fault

DTC C123D

- EBCM Solenoid Timeout

DTC C123E

- EBCM High End Timer Periodic Interrupt

DTC C123F

- EBCM Serial Peripheral Interface Inoperative

DTC C1255

- Electronic Control Unit Performance

DTC C1256

- Program ROM Checksum Error

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 849

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 849

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

C12D3

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

DTC C121E

- EBCM Unimplemented Interrupt

DTC C121F

- EBCM Unexpected Exception

DTC C123A

- EBCM High End Timer Watchdog

DTC C123B

- EBCM High End Timer Program Overflow

DTC C123C

- EBCM High End Timer RAM Fault

DTC C123D

- EBCM Solenoid Timeout

DTC C123E

- EBCM High End Timer Periodic Interrupt

DTC C123F

- EBCM Serial Peripheral Interface Inoperative

DTC C1255

- Electronic Control Unit Performance

DTC C1256

- Program ROM Checksum Error

Monday, December 9, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 774

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 774

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

C12BB

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

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

Sunday, December 8, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 740

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 740

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Underhood Electrical Center or Junction Block Replacement (See: Maintenance/Fuses and Circuit Breakers/Fuse Block/Service and

Repair/Removal and Replacement/Underhood Electrical Center or Junction Block Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming

B3875

DTC B3875

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 B3875 00

- Wiper High Speed Relay Circuit

Diagnostic Fault Information

Circuit/System Description

The body control module (BCM) monitors the wiper high speed relay control circuit only when wiper high speed mode is active. When the wiper

high speed mode is requested, the BCM responds by applying a ground through the wiper high speed relay control circuit to the coil side of the

relay, energizing the WPR HI Relay.

Conditions for Running the DTC

This DTC can set only when the output is actively being requested by the BCM.

Conditions for Setting the DTC

This DTC sets if the BCM detects a short to voltage on the WIPER 2 relay control circuit.

Action Taken When the DTC Sets

The BCM will not activate the output.

Conditions for Clearing the DTC

Sunday, November 24, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 447

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 447

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.

Refer to Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming

B1433

DTC B1433

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 B1433 00

- Ignition Switched Power Relay 2 Circuit

Diagnostic Fault Information

Circuit/System Description

The body control module (BCM) supplies voltage to the HVAC module and the windshield washer solvent heater (RPO XA7). Voltage is applied

when any of the following conditions are true:

* Ignition Switch is in ACC or RUN.

* The vehicle was remote started.

* The vehicle is in retained accessory power (RAP) mode.

Conditions for Running the DTC

* The system voltage is between 9-16 V.

* The DTC can only set when the output is actively being requested by the module.

Conditions for Setting the DTC

The DTC will set only when the module requests the output and there is a short to ground in the run relay coil control circuit.

Action Taken When the DTC Sets

The module output driver will be shut down and not supply voltage to the circuit.

Conditions for Clearing the DTC

* The current DTC will clear when the module request for the output is removed or 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

A short to voltage may cause some accessories to operate with the ignition key out and cause a low battery after extended non vehicle use.

Reference Information

Schematic Reference

* Body Control System Schematics (See: Body and Frame/Body Control Systems/Diagrams/Electrical Diagrams)

* Power Distribution Schematics (See: Diagrams/Electrical Diagrams/Starting and Charging/Power and Ground Distribution/System

Diagram/Power Distribution Schematics)

Monday, November 18, 2019

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 964

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 964

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

Tire Pressure Monitoring

DTC C0569

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 C0569 00

- System Configuration Error

Circuit/System Description

If the tire type and pressure selection information is not entered with the scan tool during the remote control door lock receiver (RCDLR) setup, the

tire pressure monitor indicator icon on the instrument panel cluster (IPC) will flash for 1 minute and then remain illuminated after the ignition

switch is cycled ON and the IPC bulb check is complete. If equipped, the driver information center (DIC) will also display a service tire monitor

type message. Under these circumstances, DTC C0569 will be set and the tire type and pressure information will need to be entered for the system

to function correctly.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The RCDLR has not undergone the programming procedure.

Action Taken When the DTC Sets

* The tire pressure monitor indicator icon on the instrument panel cluster (IPC) flashes for 1 minute and then remains illuminated after the

ignition switch is cycled ON and the IPC bulb check is complete.

* If equipped, the driver information center (DIC) displays the suspect tire pressure as dashes.

* If equipped, the DIC displays a service tire monitor type message.

Conditions for Clearing the DTC

A current DTC will clear when the RCDLR has undergone the tire type and pressure selection setup procedure and 1 ignition cycle has occurred.

Diagnostic Aids

A newly replaced RCDLR will set DTC C0569 after programming on its initial ignition ON cycle if the module setup information has not been

entered. The Tire Type and Tire Pressure Selection setup must be performed with the scan tool.

Reference Information

Description and Operation

Tire Pressure Monitor Description and Operation (See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Description

and Operation)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

Verify that the DTC C0569 is not set.

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 950

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 950

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Power Steering Wiring Harness Extension Harness Replacement (HP2) ()

* Steering Gear Replacement (Hydraulic Rack and Pinion) (See: Steering and Suspension/Steering/Steering Gear)Steering Gear Replacement

(Recirculating Ball Without LMM) (See: Steering and Suspension/Steering/Steering Gear)Steering Gear Replacement (Two Mode Hybrid)

(See: Steering and Suspension/Steering/Steering Gear)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for PSCM replacement, setup, and programming

Data Communications

DTC C0550

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 C0550 00

- Electronic Control Unit (ECU) Performance

DTC C0550 31

- Electronic Control Unit (ECU) Performance

DTC C0550 32

- ECU Performance General Memory Failure

DTC C0550 34

- ECU Malfunction RAM Failure

DTC C0550 35

- ECU Malfunction ROM Failure

DTC C0550 36

- ECU Malfunction EEPROM Failure

DTC C0550 37

- ECU Malfunction Watch Dog failure

DTC C0550 38

- ECU Performance Supervision Software Failure

DTC C0550 39

- ECU Performance Internal Electronic Failure/Discard

DTC C0550 4B

- ECU Internal Fault

Circuit/System Description

When the ignition is turned ON, the microprocessor runs a diagnostic program to detect an internal fault when power up is commanded. If an

internal malfunction is detected, the control module will store a DTC C0550 in its memory.

Conditions for Running the DTC

The microprocessor runs a diagnostic program to detect an internal fault when power up is commanded. The only requirements are voltage and

ground.

Conditions for Setting the DTC

* The control module detects an internal write malfunction.

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 907

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 907

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 TCSCM replacement, setup, and programming

* Transfer Case High/Low Clutch Reset (See: Transmission and Drivetrain/Transfer Case/Testing and Inspection/Symptom Related

Diagnostic Procedures/MP 3010-NP0/Transfer Case High/Low Clutch Reset)

* Four-Wheel Drive Does Not Engage (See: Transmission and Drivetrain/Differential Assembly/Testing and Inspection/Front Drive

Axle/Four-Wheel Drive Does Not Engage)

* Four-Wheel Drive Does Not Disengage (See: Transmission and Drivetrain/Differential Assembly/Testing and Inspection/Front Drive

Axle/Four-Wheel Drive Does Not Disengage)

* Front Drive Axle Actuator Replacement (See: Powertrain Management/Transmission Control Systems/Actuators and Solenoids -

Transmission and Drivetrain/Actuators and Solenoids - Differential/Actuator/Service and Repair)

MP 3023/3024-NQH - Transfer Case

DTC C0379

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 C0379 01

- Front Axle System Short to Battery

DTC C0379 02

- Front Axle System Short to Ground

DTC C0379 04

- Front Axle System Open Circuit

DTC C0379 08

- Front Axle Switch Circuit Signal Invalid

Diagnostic Fault Information

Circuit/System Description

The front axle control circuit consists of an electric motor actuator which engages and disengages the front axle. The front axle actuator motor

consists of a permanent magnetic motor, a worm gear controlled plunger, a front axle switch and an electronic control circuit within the actuator

assembly.

The front axle actuator consists of the following circuits:

* An Ignition 1 voltage circuit

* An axle switch signal circuit

* An axle actuator control circuit

* A ground circuit

When a shift to 4WD Auto, 4WD HI, or 4WD LO is requested, the transfer case shift control module (TCCM) engages the front axle by grounding

Sunday, November 17, 2019

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 879

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 879

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Brake Fluid Level Indicator Switch Replacement (Two-mode Hybrid) (See: Brakes and Traction Control/Hydraulic System/Brake Fluid

Level Sensor/Switch/Service and Repair/Brake Fluid Level Indicator Switch Replacement (Non-Hybrid))Brake Fluid Level Indicator Switch

Replacement (JD9, JH6) (See: Brakes and Traction Control/Hydraulic System/Brake Fluid Level Sensor/Switch/Service and Repair/Brake

Fluid Level Indicator Switch Replacement (JD9, JH6))

* Control Module References (See: Testing and Inspection/Programming and Relearning) for IPC replacement, setup, and programming

C0277

DTC C0277, C0297, or C0890

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 C0277 06

- Brake Pedal Position Sensor Circuit Short to Ground or Open

DTC C0277 07

- Brake Pedal Position Sensor Circuit Voltage Above Threshold

DTC C0277 09

- Brake Pedal Position Sensor Circuit Rate of Change Above Threshold

DTC C0277 4B

- Brake Pedal Position Sensor Calibration Not Learned

DTC C0297 00

- Brake Applied Output Circuit

DTC C0890 03

- Device Voltage Reference Output 3 Circuit Voltage Below Threshold

DTC C0890 07

- Device Voltage Reference Output 3 Circuit Voltage Above Threshold

Conditions for Running the DTC

Battery voltage must be between 9-16 V.

Conditions for Setting the DTC

In the event that DTC C0277, C0297, or C0890 sets as current in the body control module (BCM) is an indication of a possible internal BCM

malfunction or programming error. There are no external circuits available to diagnose on this vehicle with respect to these DTCs.

Actions Taken When the DTC Sets

When DTC C0277 is set as current, the vehicle may not start.

Conditions for Clearing the DTC

* For DTC C0277 the ignition must be cycled before the code can be cleared.

* A history DTC will clear once 50 malfunction-free ignition cycles have occurred.

* A DTC will not clear the current status until the next ignition cycle.

Diagnostic Aids

These DTCs may set as current after the replacement of an electronic brake control module (EBCM) or engine control module (ECM). If a control

Saturday, November 16, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 282

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 282

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Ambient Light Sensor Replacement (See: Lighting and Horns/Ambient Light Sensor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for HVAC control module replacement, setup, and

programming

B0188

DTC B0183 or B0188

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 B0183 02

- Solar Load Sensor 1 Circuit Short to Ground

DTC B0183 05

- Solar Load Sensor 1 Circuit Short to Battery or Open

DTC B0188 02

- Solar Load Sensor 2 Circuit Short to Ground

DTC B0188 05

- Solar Load Sensor 2 Circuit Short to Battery or Open

Diagnostic Fault Information

Circuit Description

The sunload sensor is a 2-wire photo diode. The vehicle uses left and right sunload sensors. The two sensors are integrated into the sunload sensor

assembly along with the ambient light sensor. Ground and signal circuits enable the sensors to operate. As the sunload increases, the sensor signal

decreases. The sensor signal varies between 0 and 5 volts. The HVAC control module converts the signal to a range between 0 and 255 counts. The

sunload sensor provides the HVAC control module with a measurement of the amount of light shining on the vehicle. Bright or high intensity light

causes the vehicles interior temperature to increase. The HVAC system compensates for the increased temperature by diverting additional cool air

into the vehicle.

The following DTCs are for the left and right sunload sensors.

* B0183 is for the left sunload sensor.

* B0188 is for the right sunload sensor.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

The HVAC control module detects the signal circuit is less than 5 counts or greater than 250 counts.

Action Taken When the DTC Sets

* The driver information center (DIC) will display SERVICE A/C SYSTEM.

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2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 783

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Underhood Electrical Center or Junction Block Replacement (See: Maintenance/Fuses and Circuit Breakers/Fuse Block/Service and

Repair/Removal and Replacement/Underhood Electrical Center or Junction Block Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming

B3875

DTC B3875

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 B3875 00

- Wiper High Speed Relay Circuit

Diagnostic Fault Information

Circuit/System Description

The body control module (BCM) monitors the wiper high speed relay control circuit only when wiper high speed mode is active. When the wiper

high speed mode is requested, the BCM responds by applying a ground through the wiper high speed relay control circuit to the coil side of the

relay, energizing the WPR HI Relay.

Conditions for Running the DTC

This DTC can set only when the output is actively being requested by the BCM.

Conditions for Setting the DTC

This DTC sets if the BCM detects a short to voltage on the WIPER 2 relay control circuit.

Action Taken When the DTC Sets

The BCM will not activate the output.

Conditions for Clearing the DTC

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2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 712

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

B3060

DTC B3060

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 B3060 00

- Unprogrammed Transponder Identification Code Received

Circuit/System Description

When an ignition key is inserted into the ignition lock cylinder and the ignition is switched ON, the transponder embedded in the head of the key is

energized by the exciter coils surrounding the ignition lock cylinder. The energized transponder transmits a signal that contains its unique value,

which is received by the theft deterrent module (TDM). The TDM then compares this value to a value stored in memory. This stored value is the

learned key code. If the value is correct, the TDM will send the prerelease password via the serial data circuit to the engine control module (ECM).

If the transponder value does not match the learned key code or a transponder value is not received, the TDM will send the start disable password to

the ECM.

Conditions for Running the DTC

Ignition is in the Accessory or Run position.

Conditions for Setting the DTC

The transponder value measured by the TDM is incorrect or not learned to the vehicle.

Action Taken When the DTC Sets

* Vehicle starting will be disabled.

* The security indicator will be illuminated.

* The security indicator will flash (Canada only).

Conditions for Clearing the DTC

* A current DTC will be cleared when the TDM detects a valid transponder value from the ignition key.

* A history DTC will be cleared after 100 malfunction-free ignition cycles or when a scan tool is used to clear DTCs.

Reference Information

Schematic Reference

Immobilizer Schematics (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Diagrams/Electrical Diagrams/Immobilizer

Schematics)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)

Description and Operation

Immobilizer Description and Operation (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Description and

Operation/Immobilizer Description and Operation)

Electrical Information Reference

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2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 662

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Underhood Electrical Center or Junction Block Replacement (See: Maintenance/Fuses and Circuit Breakers/Fuse Block/Service and

Repair/Removal and Replacement/Underhood Electrical Center or Junction Block Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM, inside rearview mirror, and rearview

camera module replacement, setup, and programming

B2555

DTC B2555

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 B2555 01

- Passenger Compartment Lamp Control Circuit Short to Battery

DTC B2555 02

- Passenger Compartment Lamp Control Circuit Short to Ground

Diagnostic Fault Information

Circuit/System Description

When the body control module (BCM) signals for courtesy lamp operation, a message is sent over the serial data circuit to the driver door and

passenger door switches. The driver door switch and passenger door switch the applies battery voltage to the left and right courtesy lamp control

circuits illuminating the door courtesy lamps. The driver door and passenger door switches also provide ground to the lamps.

Conditions for Running the DTC

* Battery voltage must be between 9-16 V.

* A message is sent from the BCM over the serial data circuit to the driver door and passenger door switches to active the door courtesy lamps.

Conditions for Setting the DTC

B2555 01

The driver or passenger door switch detects a short to voltage in the courtesy lamp control circuit.

B2555 02

The driver or passenger door switch detects a short to ground in the courtesy lamp control circuit.

Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.

* A scan tool CLEAR DTCs command is issued for that switch module.

* A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

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Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Steering Wheel Control Switch Assembly Replacement (See: Accessories and Optional Equipment/Sensors and Switches - Accessories and

Optional Equipment/Steering Mounted Controls Assembly/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming

B1544

DTC B1544, B1600, or B1605

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 B1544 01

- Mirror Motors Common Circuit Short to Battery

DTC B1544 02

- Mirror Motors Common Circuit Short to Ground

DTC B1544 04

- Mirror Motors Common Circuit Open

DTC B1600 01

- Mirror Motor Vertical Circuit Short to Battery

DTC B1600 02

- Mirror Motor Vertical Circuit Short to Ground

DTC B1600 04

- Mirror Motor Vertical Circuit Open

DTC B1605 01

- Mirror Motor Horizontal Circuit Short to Battery

DTC B1605 02

- Mirror Motor Horizontal Circuit Short to Ground

DTC B1605 04

- Mirror Motor Horizontal Circuit Open

Diagnostic Fault Information

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2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 482

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 SDGM replacement, setup, and programming

B1475

DTC B1475

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 B1475 00

- Retained Accessory Power Circuit

Diagnostic Fault Information

Circuit/System Description

The retained accessory power (RAP) system allows specific vehicle functions to operate after the ignition is turned OFF for a predetermined time.

The RAP relay is internal to the BCM. Relay RAP is controlled by the BCM using inputs from the door ajar switches to determine control of the

relay when the ignition is turned OFF. Radio RAP is controlled by a serial data message from the BCM using inputs from the driver door open

switch. Refer to Retained Accessory Power Description and Operation (See: Power and Ground Distribution/Description and Operation/Retained

Accessory Power Description and Operation) for more detail on RAP operation.

Conditions for Running the DTC

* The system voltage is between 9-16 volts.

* The DTC can only set when the output is actively being requested by the module.

Conditions for Setting the DTC

The DTC will set only when the module requests the output and there is a short to ground detected in the RAP supply voltage circuit.

Action Taken When the DTC Sets

The BCM output driver will be shut down and not supply voltage to the circuit.

Conditions for Clearing the DTC

* The current DTC will clear when the module request for the output is removed or 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

* The RAP/Spare relay is permanently soldered to the left I/P junction block and is non-serviceable.

* The RAP mode for the radio and door modules is a separate function and will still operate properly.

Reference Information

Schematic Reference

Power Moding Schematics (See: Diagrams/Electrical Diagrams/Starting and Charging/Power and Ground Distribution/System Diagram/Power

Moding Schematics)

Connector End View Reference

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2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 343

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Transfer Case Shift Control Switch Replacement (Without SLT) (See: Powertrain Management/Transmission Control Systems/Sensors and

Switches - Transmission and Drivetrain/Sensors and Switches - Transfer Case/Four Wheel Drive Selector Switch/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for TCSCM replacement, setup, and programming

* Transfer Case High/Low Clutch Reset (See: Transmission and Drivetrain/Transfer Case/Testing and Inspection/Symptom Related

Diagnostic Procedures/MP 3023/3024-NQH - Transfer Case/Transfer Case High/Low Clutch Reset)

MP 3010-NP0 - Transfer Case

DTC B0785

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 B0785 01

- 2 High Indicator Circuit Short to Battery

DTC B0785 06

- 2 High Indicator Circuit Short to Ground or Open

Diagnostic Fault Information

Circuit/System Description

The 2 High indicator circuit consists of a light emitting diode (LED), a LED feed circuit and a LED control circuit. The indicator dimming control

circuit is the LED feed circuit and continuously supplies voltage to the 2 High, Auto 4WD, and 4 High LEDs. When the 2 High mode has been

selected by the driver, the transfer case shift control module (TCCM) provides a ground through the 2 High indicator control circuit illuminating the

LED. The TCCM tests the 2 High indicator circuit for unexpected voltage by monitoring the B+ supplied by the BCM on the indicator dimming

control circuit by grounding the 2 High indicator control circuit for 2 seconds during the bulb test at key ON.

Conditions for Running the DTC

B0785 01

* Ignition ON

* System voltage 10-18 V

* Instrument panel lights not dimmed.

* Daylight running lights MUST be commanded ON.

* Circuit tested when the 2 High indicator is commanded ON.

B0785 06

* Ignition ON

* System voltage 10-18 V

* Instrument panel lights not dimmed.

* Daylight running lights MUST be commanded ON.

* Circuit tested when the 2 High indicator is commanded OFF.

Conditions for Setting the DTC

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Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Ambient Light Sensor Replacement (See: Lighting and Horns/Ambient Light Sensor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for HVAC control module replacement, setup, and

programming

B0188

DTC B0183 or B0188

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 B0183 02

- Solar Load Sensor 1 Circuit Short to Ground

DTC B0183 05

- Solar Load Sensor 1 Circuit Short to Battery or Open

DTC B0188 02

- Solar Load Sensor 2 Circuit Short to Ground

DTC B0188 05

- Solar Load Sensor 2 Circuit Short to Battery or Open

Diagnostic Fault Information

Circuit Description

The sunload sensor is a 2-wire photo diode. The vehicle uses left and right sunload sensors. The two sensors are integrated into the sunload sensor

assembly along with the ambient light sensor. Ground and signal circuits enable the sensors to operate. As the sunload increases, the sensor signal

decreases. The sensor signal varies between 0 and 5 volts. The HVAC control module converts the signal to a range between 0 and 255 counts. The

sunload sensor provides the HVAC control module with a measurement of the amount of light shining on the vehicle. Bright or high intensity light

causes the vehicles interior temperature to increase. The HVAC system compensates for the increased temperature by diverting additional cool air

into the vehicle.

The following DTCs are for the left and right sunload sensors.

* B0183 is for the left sunload sensor.

* B0188 is for the right sunload sensor.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

The HVAC control module detects the signal circuit is less than 5 counts or greater than 250 counts.

Action Taken When the DTC Sets

* The driver information center (DIC) will display SERVICE A/C SYSTEM.