Back to 2005 Toyota 4Runner

2005 TOYOTA 4RUNNER

4.0L V6RWDAUTOMATICgas
5 active safety recalls on this vehicle — view recalls
Repairs0Labor494Torque3816Fluid7DTC824Battery1Maintenance0Recalls5
P0261moderate severityPowertrain

Cylinder 1 Injector Circuit Low

on 2005 Toyota 4Runner 4.0L V6 · RWD

What this code means

Low voltage in the cylinder 1 injector driver circuit.

Symptoms

  • Check Engine Light
  • Misfire cylinder 1
  • Rough idle

Common causes

  • Short in injector wiring
  • Faulty injector
  • PCM driver issue

Diagnostic steps

  1. Test injector resistance
  2. Check for shorts
  3. Test PCM output

Repair notes

Repair wiring or replace injector.

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 →