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
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
