Operation CHARM: Car repair manuals for everyone.

C0291



Antilock Brake System

Diagnostic Information and Procedures

DTC C0291

Circuit Description

The body control module (BCM) sends a state of health serial data message to the electronic brake control module (EBCM) within 5.5 seconds after the ignition is turned ON.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The EBCM fails to receive serial data from the BCM.

Action Taken When the DTC Sets

The EBCM sets this information-only DTC as a current DTC for as long as The Conditions for Setting the DTC are present.

Conditions for Clearing the DTC

The Conditions for Setting the DTC are no longer present and you use the scan tool Clear DTC's function.

DTC C0291 Step 1: