DTC C1255 EBCM Internal Malfunction. Chevrolet PJJ 2000

For 1990-2009 cars

### Circuit Description

This DTC identifies a malfunction within the EBCM.

### Conditions for Running the DTC

The ABS and ETS conditions are normal.

### Conditions for Setting the DTC

An internal EBCM malfunction exists.

### Action Taken When the DTC Sets

The following actions occur:

• | The EBCM disables the ABS and ETS.

• | The ABS warning indicator turns ON.

• | The TRAC OFF indicator turns ON.

• | The Red BRAKE warning indicator turns ON.

• | A malfunction DTC is stored.

### Conditions for Clearing the DTC

• | The condition for setting the DTC is no longer present and the scan tool Clear DTCs function is used.

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

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the ABS Diagnostic System Check? | -- | Go to Step 2 | Go to ABS Diagnostic System Check
2 | Replace the EBCM. Refer to Electronic Brake Control Module Replacement. Did you complete the replacement? | -- | System OK | --