2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1110

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1110

P0ABC

The drive motor generator battery control module detects the terminal voltage is less than 50 V for 3 seconds.

P0ABD

The drive motor generator battery control module detects the terminal voltage is greater than 430 V for 3 seconds.

Action Taken When the DTC Sets

* DTCs P0ABB, P0ABC, and P0ABD are type A DTCs.

* The battery vent fan is commanded to high speed.

Conditions for Clearing the DTC

DTCs P0ABB, P0ABC, and P0ABD are type A DTCs.

Reference Information

Schematic Reference

Hybrid Energy Storage Schematics ()

Connector End View Reference

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

Description and Operation

Drive Motor Battery System Description ()

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)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

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

Special Tools

* EL-48571 High Voltage Battery Pin Out Box

* EL-48900 HEV Safety Kit

Circuit/System Verification

1. Verify that DTCs P0A95, P0C77, and P1A20 is not set.

瀚慖f 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. Verify that DTC P0ABD is not set.

瀚慖f the DTC is set, replace the drive motor generator battery assembly. If the DTC resets, replace the drive motor generator battery control

module.

3. Ignition ON, engine OFF, observe the scan tool Hybrid Battery Pack Calculated and Hybrid Battery Terminal parameters. The readings

should be between 169 and 408 V and should be within 50 V of each other.

Circuit/System Testing

Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal

Protection Equipment (PPE) and proper procedures must be followed.