2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1183
PIM cooling surfaces for excessive corrosion or contamination restriction. Refer to Drive Motor Generator Power Inverter Module Removal
and Installation ().
瀚慖f a concern is found, clean the APM and/or PIM cooling surfaces or replace the APM as necessary.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for APM replacement, setup, and programming
P0A01
DTC P0A01-P0A03
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 P0A01
- Motor Electronics Temperature Sensor Circuit Range/Performance
DTC P0A02
- Motor Electronics Temperature Sensor Circuit Low
DTC P0A03
- Motor Electronics Temperature Sensor Circuit High
Diagnostic Fault Information
Circuit/System Description
The generator control module temperature sensor is a variable resistor that measures the temperature of the coolant entering the generator control
module coolant radiator. The engine control module (ECM) supplies 5 V to the generator control module temperature signal circuit, and a ground
for the generator control module temperature low reference circuit.
Conditions for Running the DTC
P0A01
* DTCs P0112, P0113, P0117, P0118, P0101, P0102, P0103, P0A02, P0A03 and P2610 are not set.
* The ignition has been OFF for greater than 8 hours.
* The temperature difference between the intake air temperature and engine coolant temperature sensors is less than or equal to 16掳C (60.8掳F)
at ignition ON.
P0A02
* DTCs P0112 or P0113 are not set.
* The engine is running for greater than 10 seconds.
* The intake air temperature is greater than 70掳C (158掳F).
* This DTC runs continuously when the above conditions are met.
P0A03
* DTCs P0112 or P0113 are not set.
* The engine is running for greater than 10 seconds.
* The intake air temperature is greater than -20掳C (-4掳F).
* This DTC runs continuously when the above conditions are met.
