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

DTC C0561 5A

-
System Disabled Information Stored Plausibility Failure

DTC C0561 71

-
System Disabled Information Stored CAN-Bus Invalid Data

Circuit/System Description

The electronic brake control module (EBCM) receives messages from the engine control module (ECM), and the transmission control module (TCM) over GMLAN which are needed to perform the Traction Control System (TCS)/Electronic Stability Control (ESP) functions.

Conditions for Running the DTC

* Ignition ON.

* Ignition voltage is greater than 8 volts.

Conditions for Setting the DTC

The EBCM receives an invalid message from either the ECM or TCM over GMLAN which causes EBCM to deactivate TCS and ESP.

Action Taken When the DTC Sets

* The EBCM disables the Traction Control System (TCS)/Electronic Stability Control (ESP) for the duration of the ignition cycle.

* A multi function display (MFD) message and/or a warning indicator may be displayed.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Antilock Brake System Schematics [1][2]Antilock Brakes / Traction Control Systems

Connector End View Reference

Component Connector End Views Fuel Pump and Level Sensor Assembly

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 Control Module References for scan tool information

Circuit/System Testing

Verify that no DTCs are set in the ECM or TCM.

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

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.