2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1094

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1094

7. Ignition ON, test for 3.2-4.1 V between the control circuit terminal C and ground.

瀚慖f less than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace

the trailer brake control module.

瀚慖f greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the trailer brake control

module.

8. Ignition ON, test for 3.2-4.1 V between the control circuit terminal A and ground.

瀚慖f less than the specified range, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace

the trailer brake control module.

瀚慖f greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the trailer brake control

module.

9. Ignition ON, test for less than 1 V between the control circuit terminal D and ground.

瀚慖f greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the trailer brake control

module.

10. If all circuits test normal, replace the trailer brake solid state relay.

Repair Instructions

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

* Trailer Brake Control Relay Replacement (1500) (See: Accessories and Optional Equipment/Towing / Trailer System/Trailer Towing

Relay/Service and Repair/Trailer Brake Control Relay Replacement (1500))Trailer Brake Control Relay Replacement (2500) (See:

Accessories and Optional Equipment/Towing / Trailer System/Trailer Towing Relay/Service and Repair/Trailer Brake Control Relay

Replacement (2500))

* Trailer Brake Control Module Replacement (See: Accessories and Optional Equipment/Towing / Trailer System/Trailer Brake Control

Module/Service and Repair/Trailer Brake Control Module Replacement)

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

P0AAD

DTC P0AAD-P0AAF or P0AB2-P0AB4

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 P0AAD

- Hybrid Battery Pack Air Temperature Sensor 1 Performance

DTC P0AAE

- Hybrid Battery Pack Air Temperature Sensor 1 Circuit Low Voltage

DTC P0AAF

- Hybrid Battery Pack Air Temperature Sensor 1 Circuit High Voltage

DTC P0AB2

- Hybrid Battery Pack Air Temperature Sensor 2 Performance

DTC P0AB3

- Hybrid Battery Pack Air Temperature Sensor 2 Circuit Low Voltage

DTC P0AB4

- Hybrid Battery Pack Air Temperature Sensor 2 Circuit High Voltage

Diagnostic Fault Information