Back to 2018 Cadillac XT5

2018 CADILLAC XT5

3.6L V6FWDAUTOMATICgas
Repairs0Labor479Torque3847Fluid6DTC969Battery0Maintenance0Recalls0
P0261moderate severityPowertrain

Cylinder 1 Injector Circuit Low

on 2018 Cadillac XT5 3.6L V6 · FWD

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 →