Saturday, December 7, 2019

2010 Cadillac Truck Escalade AWD V8-6.2L Page 1119

P0AAF and P0AB4

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

P0AAE and P0AB3

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

P0AAD

The hybrid battery cooling fan is ON and the difference between sensor 1 and 2 is greater than 10锟斤拷C (50锟斤拷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锟斤拷C (50锟斤拷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

1. Verify that DTC P0A80, P0A81 or P0BBD is not set.

锟斤拷If 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. Ignition ON, using a scan tool, command the hybrid battery pack fan speed to 60 percent and let it run for 2 minutes.

3. Observe the scan tool hybrid battery air inlet and outlet temperature parameters. The readings should be between -39 and +95锟斤拷C (-38.2 and

+203锟斤拷F) with no greater than a 10锟斤拷C ( 50锟斤拷F) difference. Refer to Temperature Versus Resistance ().