Thursday, December 12, 2019

2010 Cadillac Truck Escalade AWD V8-6.2L Page 1540

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Drive Motor Battery Sensor Module Wiring Harness Replacement ()

* Control Module References (See: Testing and Inspection/Programming and Relearning) for drive motor generator battery control module

replacement, setup and programming

P0C52

DTC P0C52, P0C53, P0C5C, or P0C5D

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 P0C52

- Drive Motor 1 Position Sensor Circuit 1 Low Voltage

DTC P0C53

- Drive Motor 1 Position Sensor Circuit 1 High Voltage

DTC P0C5C

- Drive Motor 1 Position Sensor Circuit 2 Low Voltage

DTC P0C5D

- Drive Motor 1 Position Sensor Circuit 2 High Voltage

Diagnostic Fault Information

Circuit/System Description

The drive motor generator position sensor is monitored by the motor control module (MCM). The MCM monitors the angular position, speed and

direction of the drive motor generator based upon the signals of the resolver-type position sensor. The position sensor, or resolver, contains a drive

coil, two driven coils and an irregular shaped metallic rotor. The metallic rotor is mechanically attached to the shaft of the drive motor generator. At

ignition ON, the MCM outputs a 7 volt ac, 10 kHz excitation signal to the drive coil. The drive coil excitation signal creates a magnetic field