For 1990-2009 cars

### Conditions for Setting the DTC

DTC C0550 will set if the ABS control module detects an internal fault.

When DTC C0550 sets:

• | The ABS telltale will be on.

• | The ABS control module will disable the ABS, the TCS, and the DRP.

### Diagnostic Aids

Important: New ABS control modules will automatically set DTC C0551 when installed. To clear DTC C0551, new modules must be configured with the correct engine and transmission option bit. Refer to "ABS Programming" on the scan tool.

The ABS control module must be replaced.