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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 >> Test Description

Test Description

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 number below refers to step number on the Diagnostic Table.

  1. 2. This step determines if the DTC is current.
    Fig 1: DTC C0121
    G01757495Courtesy of GENERAL MOTORS CORP.
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