EV Diagnostics
Source-backed diagnostic reference

P1508 EV diagnostic code

IAC Valve Circuit Failure

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

  • ACURA: IAC Valve Circuit Failure Source
  • BMW: Idle Speed Control Valve Opening Solenoid Control Open Circuit Source
  • BUICK: IAC System Low RPM Source
  • CADILLAC: IAC System Low RPM Source
  • CHEVY: IAC System Low RPM Source
  • CHRYSLER: IAC System Low RPM Source
  • GM: IAC System Low RPM Source
  • GMC: IAC System Low RPM Source
  • HONDA: IAC Valve Circuit Failure Source
  • INFINITI: IAC Valve Circuit Failure Source
  • JAGUAR: Idle Air Control Circuit Open Source
  • KIA: Idle Air Control Valve Closing Coil Voltage High Source
  • MAZDA: Idle Air Control Circuit Open Source
  • OLDSMOBILE: IAC System Low RPM Source
  • OTHER: Idle Control System Circuit Open Source
  • SATURN: IAC System Low RPM Source
  • VOLKSWAGEN: Idle System Learned Value Upper Limit Attained Source

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P1508 EV diagnostic code reference | EV Diagnostics