2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1195

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1195

replace the PIM.

5. Connect the DT-48493 to the X176 transmission 24-way connector at the transmission. Measure and record the resistance between the sensor

signal and low reference terminals. Compare the actual sensor and circuit resistance to the expected sensor resistance. Refer to Temperature

Versus Resistance ().

瀚慖f the resistance is near the expected value, test the transmission internal harness signal circuit for a short to ground. If the circuit tests

normal, replace the drive motor w/generator.

瀚慖f the resistance is not near the expected value, test the transmission internal harness signal and low reference circuits for an open or

shorted together condition. If the circuits test normal, replace the drive motor w/generator.

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 PIM replacement, setup, and programming

* Transmission Control Wiring Harness Extension Harness Removal (See: Transmission and Drivetrain/Automatic

Transmission/Transaxle/Service and Repair/Overhaul/2ML70 - Automatic Transmission/5. Transmission Control Wiring Harness Extension

Harness Removal)

* Drive Motor with Generator Assembly Removal - 1st Position (See: Transmission and Drivetrain/Automatic

Transmission/Transaxle/Service and Repair/Overhaul/2ML70 - Automatic Transmission/8. Drive Motor with Generator Assembly Removal -

1st Position)

* Drive Motor with Generator Assembly Removal - 2nd Position (See: Transmission and Drivetrain/Automatic

Transmission/Transaxle/Service and Repair/Overhaul/2ML70 - Automatic Transmission/13. Drive Motor with Generator Assembly Removal

- 2nd Position)

P0A2C

DTC P0A2B-P0A2D or P0A31-P0A33

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 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