GM Service Manual Online
For 1990-2009 cars only

Conditions for Running the DTC

When the subsidiary CPU (watch-dog) which watches the internal circuit in the electronic brake control module (EBCM) senses the fault, this fault code may happen.

Conditions for Setting the DTC

EBCM internal fault

Action Taken When the DTC Sets

The warning lamp is ON.

This is a critical operational fault. The ABS is disabled and the ABS warning lamp is turned ON. The proportioning is operation.

Step

Action

Yes

No

Schematic Reference: Antilock Brake System Schematics

Connector End View Reference: Antilock Brake System Connector End Views

1

Replace the EBCM.

Is the repair complete?

System OK

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