DTC C0561

Circuit Description

 

The electronic brake control module (EBCM) disables the traction control when other electronic control modules set DTCs for components that effect the operation of the Traction Control System (TCS).

DTC Descriptor

 

This diagnostic procedure supports the following DTC:

DTC C0561 System Disabled Information Stored

DTC Symptom

DTC Symptom Descriptor

71

Invalid Serial Data Received

Conditions for Running the DTC

 

     

The ignition is ON.

 

     

Ignition voltage is greater than 8 volts.

Conditions for Setting the DTC

 

The powertrain control module (PCM) or body control module (BCM) diagnoses a condition preventing the engine control portion of the traction control function and sends a serial data message to the EBCM indicating that torque reduction is not allowed. The PCM or BCM will typically set a DTC and the EBCM will set this DTC.

Action Taken When the DTC Sets

 

     

The EBCM disables the TCS until the DTC becomes a history DTC.

 

     

The Traction Off indicator turns ON.

 

     

The Antilock Brake System (ABS) remains functional.

Conditions for Clearing the DTC

 

     

The condition for the DTC is no longer present and the DTC is cleared with a scan tool.

 

     

The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids

 

This DTC is for information only. As an aid to the technician, this DTC indicates that there are no problems in the ABS/TCS system.

Step

Action

Yes

No

Schematic Reference: Antilock Brake System Schematics

1

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