2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1247

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1247

Action Taken When the DTC Sets

* DTC P0A80 is a type A DTC.

* Hybrid battery power is reduced to 0 Kw.

* The battery cooling fan turns ON high speed.

* The driver information center (DIC) displays the SERVICE HYBRID SYSTEM message.

Conditions for Clearing the DTC

DTC P0A80 is a type A DTC.

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-48900 HEV Safety Kit

Circuit/System Verification

Ignition ON, observe the scan tool BECM Hybrid Batt. Pack Resistance parameter. The reading should be less than the resistance values specified

in Drive Motor Generator Battery End of Life Resistance ().

If greater than the specified range, replace the drive motor battery assembly.

Repair Instructions

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

Drive Motor Generator Battery Replacement and Shipping Preparation ()

P0A81

DTC P0A81 or P0BC1

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.