For 1990-2009 cars

### 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.

### DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC C0561 System Disabled Information Stored

### Conditions for Running the DTC

• | The ignition is turned ON.

• | The ignition voltage is greater than 8 volts.

### Conditions for Setting the DTC

The PCM or 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 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 electronic brake control module (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
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