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2001 ROLLS-ROYCE CORNICHE

6.75L V8•RWD•AUTOMATIC•gas
1 active safety recall on this vehicle — view recalls
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Repairs0Labor564Torque3712Fluid7DTC649Battery0Maintenance0Recalls1
P0508moderate severityPowertrain

Idle Air Control System Circuit Low

on 2001 Rolls-Royce Corniche 6.75L V8 · RWD

What this code means

Low voltage in IAC circuit.

Symptoms

  • Low idle
  • Stalling

Common causes

  • Short to ground
  • Faulty IAC motor
  • Wiring issue

Diagnostic steps

  1. Test IAC voltage
  2. Check for shorts

Repair notes

Replace IAC or repair wiring.

Other Powertrain codes on this vehicle

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