Back to 1996 Toyota 4Runner

1996 TOYOTA 4RUNNER

2.7L I44WDAUTOMATICgas
5 active safety recalls on this vehicle — view recalls
Repairs0Labor516Torque6148Fluid9DTC654Battery1Maintenance0Recalls5
P1652moderate severityPowertrain

Idle Air Control Valve Circuit

on 1996 Toyota 4Runner 2.7L I4 · 4WD

What this code means

The ECM detected a malfunction in the IAC valve control circuit.

Symptoms

  • CEL
  • High/low idle
  • Erratic idle
  • Stalling at idle
  • Surging

Common causes

  • Faulty IAC valve
  • Carbon in IAC passages
  • Damaged wiring
  • Poor ECM ground

Diagnostic steps

  1. Test IAC valve resistance
  2. Clean IAC passages
  3. Inspect wiring
  4. Check grounds

Repair notes

Clean or 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 →