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 71
- System Disabled Information Stored

Circuit/System Description

The electronic brake control module (EBCM) communicates with the engine control module (ECM) and body control module (BCM) during a traction control or stability control event.

Conditions for Running the DTC

Ignition voltage is greater than 8 volts.

Conditions for Setting the DTC

The EBCM detects and invalid serial data message when communicating with the ECM and BCM during a traction control or stability control event.

Action Taken When the DTC Sets

One or more of the following actions may occur:

* The EBCM disables the vehicle stability enhancement system (VSES) or traction control systems (TCS)
* The traction control Indicator turns ON or the stability control Indicator turns ON.

Conditions for Clearing the DTC

* The condition for the DTC is no longer present.
* The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids

This DTC is an aid to the technician, this DTC indicates that there are no problems in the ABS/TCS/VSES. The ECM and BCM should be checked for a possible fault.

Reference Information
Schematic Reference

Antilock Brake System Schematics (Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation Reference

ABS Description and Operation (Description and Operation)
Electrical Information Reference

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

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