DTC codes / C08xx · Brakes, steering and suspension / C0851
C0851 indicates a fault in the active damping control system for the front right corner of the vehicle, where the computer has detected an electrical or performance issue with that corner's adaptive shock absorber or its control circuit. The module monitors the damper's solenoid, wiring, and response, and sets this code when the signal is out of range or the actuator fails to respond as commanded.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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