Back to 2001 Acura Integra

2001 ACURA INTEGRA

1.8L I4 VTECFWDAUTOMATICgas
5 active safety recalls on this vehicle — view recalls
Repairs0Labor478Torque3841Fluid6DTC691Battery0Maintenance0Recalls5
P1509high severityPowertrain

Idle Air Control Valve Circuit Short

on 2001 Acura Integra 1.8L I4 VTEC · 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.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →