C0561 (EBCM)

DTC C0561 (EBCM)

Diagnostic Instructions

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

DTC Descriptors
DTC C0561 71
- System Disabled Information Stored Invalid Serial Data Received

DTC C0561 72
- System Disabled Information Stored Alive Counter Incorrect/Not Updated

DTC C0561 74
- System Disabled Information Stored Value of Signal Protection Calculation Incorrect

DTC C0561 75
- System Disabled Information Stored Value of Signal Above Allowable Range

DTC C0561 7F
- System Disabled Information Stored Value of Signal Erratic

Circuit/System Description

The electronic brake control module (EBCM) receives serial data messages from the body control module (BCM), engine control module (ECM), instrument panel cluster (IPC), and the transmission control module (TCM) which are needed to perform antilock brake system (ABS), vehicle stability enhancement system (VSES), or traction control system (TCS) functions.

Conditions for Running the DTC

* Ignition ON.
* Ignition voltage is greater than 10 volts.

Conditions for Setting the DTC

The EBCM receives an invalid serial data message from another module.

Actions Taken when the DTC Sets

* The EBCM disables the antilock brake system (ABS), traction control and StabiliTrak for the duration of the ignition cycle.
* A DIC message and/or a warning indicator may be displayed.

Conditions for Clearing the DTC

* The condition for setting the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Diagnostic Aids

This DTC indicates that there are no problems in the EBCM. The BCM, ECM, IPC, and the TCM should be checked for a possible fault.

Reference Information
Schematic Reference

Antilock Brake System Schematics (JL7) (Antilock Brake System Schematics (With RPO JL7))Antilock Brake System Schematics (Except JL7) (Antilock Brake System Schematics (Except RPO JL7))
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

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

* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Circuit Testing (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)

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, ECM, IPC and the TCM.

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