2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1112

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1112

P0AB2

DTC P0AAD-P0AAF or P0AB2-P0AB4

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 Descriptors

DTC P0AAD

- Hybrid Battery Pack Air Temperature Sensor 1 Performance

DTC P0AAE

- Hybrid Battery Pack Air Temperature Sensor 1 Circuit Low Voltage

DTC P0AAF

- Hybrid Battery Pack Air Temperature Sensor 1 Circuit High Voltage

DTC P0AB2

- Hybrid Battery Pack Air Temperature Sensor 2 Performance

DTC P0AB3

- Hybrid Battery Pack Air Temperature Sensor 2 Circuit Low Voltage

DTC P0AB4

- Hybrid Battery Pack Air Temperature Sensor 2 Circuit High Voltage

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The drive motor generator battery assembly has an air inlet and air outlet temperature sensors. The air inlet and air outlet temperature sensors are

located on the inlet and outlet air ducts of the hybrid battery vent fan. The air inlet temperature sensor is referred to as sensor 1 and the air outlet

temperature sensor is referred to as sensor 2. The air temperature sensors are a variable resistor that measures the temperature of the inlet and outlet

air. The control module supplies 5 V to the signal circuit and a ground for the low reference circuit. The air inlet and outlet temperature sensor