Idle and speed control fault codes

10 documented codes across 24 real diagnostics.

Idle air control, cruise control, vehicle speed inputs and crankcase ventilation regulation.

Ranked by how often we actually see them

  • P0507, Idle air control system RPM higher than expected
  • P0571, Brake switch A circuit
  • P0505, Idle air control system
  • P052E, not individually documented
  • P050C, not individually documented
  • P0568, not individually documented
  • P0504, Brake switch A/B correlation
  • P0501, Vehicle speed sensor A range/performance
  • P0513, Incorrect immobiliser key
  • P0553, Power steering pressure sensor A circuit high