Engine Shutdown Request
The engine control module has received a request to shut down the engine.
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 is telling itself to shut off because it received a shutdown request, likely from a safety or control feature.
What the computer is actually seeing
The ECM sees a signal to stop fuel injectors, which leads to a no-start condition or engine shutdown.
What a healthy reading looks like
Engine should be running normally unless a valid shut down request is received at 5V from the control module.
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.
- 11. Inspect the wiring and connectors to the shutdown switch for damage or corrosion. Decision Point: If issues are found, repair them. If no issues, proceed to step 2.
- 22. Check the shutdown switch operation. With the ignition on, it should read between 0-0.5V when closed and near battery voltage when open. Decision Point: If readings are out of spec, replace the shutdown switch. If readings are good, proceed to step 3.
- 33. Use a scan tool to check for additional fault codes that might relate to the ECM or fuel system. Decision Point: If related codes are present, address those before replacing any parts. If no related codes, proceed to step 4.
- 44. Verify the operation of the Engine Control Module (ECM) for proper functionality. Look for unusual behavior or past updates. Decision Point: If the ECM is faulty, consider replacement. If it appears good, further diagnose related systems.
Common causes
- Faulty shutdown switch or its wiring
- Issues with the Engine Control Module (ECM)
- Faulty sensors sending false signals to the ECM
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
No, this code indicates a shutdown request which can lead to the engine not starting or stalling.
Will this code come back after clearing it?
If the underlying issue is not fixed, the code will likely return.
Why does this code sometimes appear with other codes?
It may pair with other engine-related codes if there are issues affecting the signaling to the ECM.
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