2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1183

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.