2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1203

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1203

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.

Conditions for Setting the DTC

P0A01

The engine control module detects that the temperature difference between the generator control module temperature sensor parameter and the

engine coolant temperature sensor is greater than 30掳C (86掳F).

P0A02

The engine control module detects that the generator control module temperature sensor parameter is less than -60.5掳C (-76.9掳F).

P0A03

The engine control module detects that the generator control module temperature sensor parameter is greater than 162掳C (323.6掳F).