EV Diagnostics
Source-backed diagnostic reference

P1509 EV diagnostic code

Idle Speed Control Valve Opening Solenoid Control Circuit Electrical

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

  • BMW: Idle Speed Control Valve Opening Solenoid Control Circuit Electrical Source
  • BUICK: IAC System High RPM Source
  • CADILLAC: IAC System High RPM Source
  • CHEVY: IAC System High RPM Source
  • CHRYSLER: IAC System High RPM Source
  • GM: IAC System High RPM Source
  • GMC: IAC System High RPM Source
  • JAGUAR: Idle Air Control Circuit Shorted Source
  • MAZDA: Idle Air Control Circuit Shorted Source
  • OLDSMOBILE: IAC System High RPM Source
  • OTHER: Idle Control System Circuit Shorted Source
  • SATURN: IAC System High RPM Source
  • VOLKSWAGEN: Idle Air Control Circuit Electrical Malfunction Source

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P1509 EV diagnostic code reference | EV Diagnostics