Injector Circuit Open
The ECM has detected an open circuit in the injector wiring.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
There's a break or disconnection in the wire that sends power to a fuel injector, meaning the injector can't open to spray fuel.
What the computer is actually seeing
The Engine Control Module (ECM) notices no voltage or inconsistent readings coming from the specific injector circuit, resulting in reduced fuel delivery.
What a healthy reading looks like
Expected voltage at the injector connector is typically 12-14 volts during operation, with an impedance reading around 12-16 ohms for the injector itself.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check for visible damage to the injector wiring harness and connectors. Repair as necessary.
- 2Using a multimeter, measure voltage at the injector connector with the key on (engine off) — should be 12-14 volts. If not, track back to the ECM or wiring.
- 3Check injector resistance with the engine off. Disconnect the injector and measure between the terminals: Should be 12-16 ohms. If out of range, replace the injector.
- 4Inspect the ECM for signs of failure or corrosion. If all other checks are normal but the issue persists, consider ECM replacement.
Common causes
- Damaged wiring harness
- Faulty injector
- Bad connection at the injector plug
- ECM failure
Typical repair cost
$$
Related codes
Frequently asked questions
Can I still drive the vehicle?
It's not safe to drive with a possible injector failure; the vehicle could stall and affect performance.
Will this issue come back after repair?
If the wiring is fixed properly and connections are clean, it shouldn't return unless there's another failure.
Why do I see this code with SPN 0365 or SPN 0367?
These codes indicate similar injector issues, often related to circuit problems, and are flagged together by the ECM.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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