FixVault

Home › Chevrolet › 2004 › Optra Base, Standard › Repair and Diagnosis › Brakes › Traction Control › Anti-Lock Brake System › Diagnostic Information and Procedures › DTC C0121 › Conditions for Setting the DTC

Conditions for Setting the DTC

A connector terminal is corroded.
The wiring harness is damaged.
The ground terminal is not conducting properly.
The EBCM is defective.