C0561

DTC C0561

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Diagnostic Procedure Instructions) provides an overview of each diagnostic category.

DTC Descriptor
DTC C0561 00
- System Disabled Information Stored

Circuit/System Description

The rear differential clutch control module receives messages from other modules over serial data which are needed to perform all wheel drive (AWD) functions.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The rear differential clutch control module receives an invalid message from the electronic brake control module (EBCM) over the serial data circuit which causes the rear differential clutch control module to deactivate.

Action Taken When the DTC Sets

One or more of the following actions may occur:

* All Wheel Drive Off (AWD Disabled).
* Service All Wheel Drive (Service AWD).

Conditions for Clearing the DTC

* The condition for the DTC is no longer present.
* The DTC is not detected in 40 consecutive drive cycles.

Diagnostic Aids

DTC C0561 is an indicator that the rear differential clutch control module receives an invalid message from the EBCM and does not necessarily indicate a fault is present with the rear differential clutch control module. This DTC should not be used as a fault indicator but rather as a symptom to assist in the diagnosis of these other systems. The EBCM should be checked for possible faults.

The scan tool System Disabled Information Stored parameters may be used during diagnosis to determine which specific system component is causing the concern.

Reference Information
Schematic Reference

Rear Axle Schematics (Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector End Views By Name)
Description and Operation

Rear Drive Axle Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information

Circuit/System Verification

Verify that no DTCs are set in the EBCM.

If DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (Diagnostic Trouble Code (DTC) List - Vehicle).