2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1113

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1113

resistance changes with temperature. The lower the temperature, the higher the resistance of the sensor. The higher the temperature, the lower the

resistance of the sensor. The drive motor generator battery control module (BECM) uses the air inlet and outlet temperature sensors to determine if

air is circulating through the drive motor generator battery assembly.

Conditions for Running the DTC

* The ignition is ON.

* The 12 V battery voltage is 9-18 V.

Conditions for Setting the DTC

P0AAF and P0AB4

The hybrid battery pack air temperature sensor 1 or 2 is less than -40掳C (-40掳F).

P0AAE and P0AB3

The hybrid battery pack air temperature sensor 1 or 2 is greater than 95掳C (203掳F).

P0AAD

The hybrid battery cooling fan is ON and the difference between sensor 1 and 2 is greater than 10掳C (50掳F) difference for 9 seconds.

P0AB2

The hybrid battery cooling fan is ON and the outlet air temperature is greater than maximum hybrid battery temperature value by 10掳C (50掳F) for 9

seconds.

Action Taken When the DTC Sets

* DTCs P0AAD, P0AAE, P0AAF, P0AB2, P0AB3, and P0AB4 are type B DTCs.

* The drive motor generator battery sends a message to the hybrid powertrain control module to reduce the power by 50 percent.

Conditions for Clearing the DTC

DTCs P0AAD, P0AAE, P0AAF, P0AB2, P0AB3, and P0AB4 are type B DTCs.

Reference Information

Schematic Reference

Hybrid Cooling Schematics ()

Connector End View Reference

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

Description and Operation

Drive Motor Generator Battery Cooling 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