2010 Cadillac Truck Escalade RWD V8-6.2L Page 1535
P1A0D
The drive motor generator battery control module detects the ignition voltage is greater than 16 V for 3 seconds.
Action Taken When the DTC Sets
P1A0C
* DTCs P1A0C and P1A0D are Type C DTCs.
* The drive motor generator battery control module commands the battery vent fan to High.
P1A0D
* DTCs P1A0C and P1A0D are Type C DTCs.
* The drive motor generator battery control module commands the battery vent fan to High.
* After 8 minutes of ignition voltage over 16 V, the high voltage contactor coils will become hot and the drive motor generator battery control
module will open the contactors. The drive motor generator battery control module will not close the high voltage contactors for 30 minutes
to allow high voltage contactors to cool.
Conditions for Clearing the DTC
* DTCs P1A0C and P1A0D are Type C DTCs.
* The control module ignition voltage is between 9-16 V.
Diagnostic Aids
Observe the driver information center (DIC) messaging that would indicate the charging system requires service.
Inspect for the following conditions:
* Loose or poor connections at the hybrid drive motor battery X350 18-way connector.
* Loose or poor connections at the 12 V negative battery cable G102.
* Verify that the 12 V battery and charging system is within normal operating range and if a battery charger was connected to the vehicle.
* Loose or damaged battery terminals.
* Loose or corroded connections at the accessory dc power control module (APM).
Reference Information
Schematic Reference
Hybrid Energy Storage Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
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-48900 HEV Safety Kit
Circuit/System Verification
1. Verify that DTC P0A8D or P0A8E 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).
