2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1372

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1372

Failure to follow the procedures exactly as written may result in serious injury or death.

1. Ignition OFF, disable the high voltage at the drive motor generator battery. Refer to High Voltage Disabling ().

2. Disconnect the X4 harness connector at the drive motor battery control module.

3. Connect the EL-48571 high voltage battery pin out box.

4. Install the high voltage manual disconnect lever. Measure and record each of the 20 battery voltages.

5. Each battery voltage reading should be between 10-19 V.

瀚慖f not within the specified range, replace the drive motor battery assembly.

6. Each battery voltage reading should be within 1.5 V of each other.

瀚慖f not within the specified range, replace the drive motor battery assembly.

7. If all circuits test normal, replace the drive motor generator battery control module.

Repair Instructions

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

* Drive Motor Generator Battery Replacement and Shipping Preparation ()

* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module

replacement, setup and programming

P0B8C

DTC P0B3C, P0B41, P0B46, P0B4B, P0B50, P0B55, P0B5A, P0B5F, P0B64, P0B69, P0B6E, P0B73, P0B78, P0B7D, P0B82, P0B87, P0B8C,

P0B91, P0B96, or P0B9B

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 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