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Home >> Chevrolet >> 2001 >> Impala Base, 3.8 K >> Repair and Diagnosis >> External Pages >> Different car >> Section 493 (Anti-Lock Brake System) >> Diagnostic Information And Procedures >> DTC C0121: Valve Relay Circuit Malfunction >> Conditions for Running the DTC

Conditions for Running the DTC

WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.

The ignition switch is in the ON position.