2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1107
* The 12 V battery voltage is 9-18 V.
* The high voltage contactors are closed.
Conditions for Setting the DTC
P0ABB
The drive motor generator battery control module detects a 50 V difference between the hybrid battery pack calculated voltage and the hybrid
battery terminal voltage for 7 seconds.
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
