2010 Cadillac Truck SRX AWD V6-3.0L Page 818

2010 Cadillac Truck SRX AWD V6-3.0L Page 818

Conditions for Clearing the DTC

* The condition for setting the DTC is no longer present.

* The DTC is not detected in 40 consecutive ignition cycles.

Reference Information

Schematic Reference

Rear Axle Schematics (See: Transmission and Drivetrain/Differential Assembly/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Rear Drive Axle Description and Operation (See: Transmission and Drivetrain/Differential Assembly/Description and Operation)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

Engine running, observe the scan tool Rear Drive Clutch Status parameter. The scan tool should display TEMPORARILY LIMITED when

stationary.

Circuit/System Testing

Important: The rear drive clutch solenoid valve is calibrated with and is part of the rear differential clutch control module. Both

components must be replaced as a matched set.

1. Ignition OFF, replace the oil filter in the torque transfer device housing.

2. Drive the vehicle under normal operating conditions.

3. Verify DTC C0403 62 is not set.

瀚慖f the DTC is set, replace the K47 rear differential clutch control module/Q48 rear drive clutch solenoid valve assembly.

Repair Instructions

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

* Differential Clutch Oil Filter Replacement (See: Transmission and Drivetrain/Differential Assembly/Differential Clutch/Service and

Repair/Differential Clutch Oil Filter Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for rear differential clutch control module

replacement, setup, and programming

C0406

DTC C0406

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.