C1218: Lamp ABS Warning Output Circuit Failure

MediumChassisAnti-Lock Brakes

What does C1218 mean?

C1218 is a diagnostic trouble code indicating "Lamp ABS Warning Output Circuit Failure". This code relates to your vehicle's anti-lock brakes and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Common causes

  • Faulty anti-lock brakes component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

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Code C1218 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

C1217ABS Inlet Valve Coil RF Circuit Short To Ground
C1219Lamp ABS Warning Output Circuit Open
C1216ABS Inlet Valve Coil RF Circuit Short To Battery
C1220Lamp ABS Warning Output Circuit Short To Battery