2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1148

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1148

P0ADC

The drive motor generator battery control module compares the contactor control circuit to the drive motor generator battery control modules

internal 12 V measurement reference circuit. This DTC sets when the contactor control circuit voltage and the drive motor generator battery control

modules internal voltage reference are within 2 V of each other when the high voltage positive contactor is commanded open.

Action Taken When the DTC Sets

DTCs P0ADB and P0ADC are type C DTCs.

Conditions for Clearing the DTC

DTCs P0ADB and P0ADC are type C 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)

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

Testing Verify that DTC P0ADB or P0ADC is not set.

If any of the DTCs are set, refer to High Voltage Contactor/Relay Malfunction ().

P0ADC

DTC P0ADB or P0ADC

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 P0ADB

- Hybrid Battery Positive Contactor Control Circuit Low Voltage