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2010 ACURA TL
3.7L V6•FWD•AUTOMATIC•gas
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor497Torque1577Fluid7DTC1900Battery1Maintenance0Recalls3
P1509high severityPowertrain

Idle Air Control Valve Circuit Short

on 2010 Acura TL 3.7L V6 · FWD

What this code means

Short circuit in the IAC valve coil.

Symptoms

  • CEL
  • Erratic idle
  • RPM bouncing
  • Stalling at idle

Common causes

  • Faulty IAC valve internal short
  • Shorted wiring
  • Damaged connector

Diagnostic steps

  1. Test IAC resistance
  2. Check for shorts
  3. Inspect connector
  4. Test PCM driver

Repair notes

Replace IAC valve.

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