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 77
- System Disabled Information Stored Engine Speed Out of Range

DTC C0561 78
- System Disabled Information Stored Acceleration Pedal Position Out of Range

DTC C0561 79
- System Disabled Information Stored Transmission Gear Invalid Data

Circuit/System Description

The Electronic Brake Control Module disables the Traction/stability Control when other Electronic Control Modules set DTCs for components that effect the operation of the brake system.

Conditions for Running the DTC

* Engine Running.

* Ignition voltage is greater than 8 V.

Conditions for Setting the DTC

The Electronic Brake Control Module receives an invalid serial data message from another module more than ten times.

Action Taken When the DTC Sets

* The ABS system remains functional.

* The Electronic Brake Control Module disables the stability control for the entire ignition cycle.

Conditions for Clearing the DTC

* The condition for the DTC is no longer present.

* The history DTC will clear after 40 consecutive fault-free drive cycles have occurred.

Diagnostic Aids

This DTC indicates there are no problems in the brake system. The Body Control Module, Engine Control Module, and Transmission Control Module should be checked for a possible fault first.

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

Description and Operation

ABS 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 Control Module References for scan tool information

Circuit/System Verification

C0561 77 or C0561 78

1. Ignition ON.

2. Verify that there no other DTCs set.

• If any other DTCs are set
Refer to the Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.

• If no other DTCs are set

3. Replace the K20 Engine Control Module.

4. Verify the DTC does not set while operating the vehicle within the conditions for Running the DTC.

• If the DTC sets
Replace the K17 Electronic Brake Control Module.

• If the DTC does not set

5. All OK.

C0561 79

1. Ignition ON.

2. Verify that there no other DTCs set.

• If any other DTCs are set
Refer to the Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.

• If no other DTCs are set

3. Replace the K71 Transmission Control Module.

4. Verify the DTC does not set while operating the vehicle within the conditions for Running the DTC.

• If the DTC sets
Replace the K17 Electronic Brake Control Module.

• If the DTC does not set

5. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

Control Module References Control Module References for Electronic Brake Control Module, Engine Control Module, or Transmission Control Module replacement, programming and setup