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SPN 3110moderate severity✨ AI-generated

Engine Shutoff Solenoid Circuit Open

The engine shutoff solenoid is not operating correctly due to an open circuit.

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)

The engine shutoff solenoid controls the fuel flow to the engine, and if there's an open circuit, it can't operate, which can lead to engine shutdown or starting issues.

What the computer is actually seeing

The engine control module (ECM) monitors the voltage and continuity through the shutoff solenoid circuit. If it detects an open (no continuity) when it expects a closed circuit (with resistance below 5 ohms), it will set this code.

What a healthy reading looks like

Expected voltage should be 12V or a defined circuit resistance below 5 ohms when the solenoid is activated.

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.

  1. 11. Inspect the wiring and connectors for any obvious damage or corrosion.
  2. 22. Check the voltage at the shutoff solenoid connector with the engine on. You should see around 12V.
  3. 33. If no voltage, backtrack to see if the fuse is good and if the wiring to the ECM is intact.
  4. 44. If voltage is present, measure the resistance across the solenoid terminals. It should be below 5 ohms.
  5. 55. If resistance is high or infinite, replace the engine shutoff solenoid. Otherwise, check for an open circuit in the wiring back to the ECM.

Common causes

  • Damaged or corroded wiring
  • Faulty engine shutoff solenoid
  • Disconnected or loose connector

Typical repair cost

$$

Related codes

Frequently asked questions

Is it safe to drive with this code?

Not recommended. The engine may stall or fail to start.

Will this code come back after clearing?

If the underlying issue isn't fixed, the code will return.

Why does this code appear with other codes?

Often related to issues in the fuel system or electrical faults affecting multiple components.

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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