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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Antilock Brake System) >> Diagnostic Information and Procedures >> DTC C0121 >> DTC Descriptor

DTC Descriptor

WARNING: This page is about a different car, the 2020 Cadillac XT5. However, it is still accessible from the selected car via links, so may be relevant.
DTC C0121

Valve Relay Circuit Malfunction

For symptom byte information refer to Symptom Byte List

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