Engine Shutoff Valve Position Sensor Voltage Above Normal
Voltage at the engine shutoff valve sensor is too high.
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What it means (plain English)
The engine shutoff valve sensor monitors the position of the valve. If the voltage reading is too high, it means the sensor thinks the valve is in a position it shouldn't be, which could prevent the engine from starting or cause it to shut off unexpectedly.
What the computer is actually seeing
The Engine Control Unit (ECU) is receiving a voltage signal from the shutoff valve position sensor that exceeds the expected range, typically above 4.5 volts when it should be 0.5 to 4.5 volts.
What a healthy reading looks like
Sensor output should be between 0.5V to 4.5V based on valve position; voltage above 4.5V triggers this fault.
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. Visually inspect wiring and connectors to the engine shutoff valve sensor for damage or corrosion.
- 22. Measure the voltage at the engine shutoff valve position sensor while the engine is on. Expected value: 0.5V to 4.5V.
- 3 - If the voltage is above 4.5V, proceed to step 3.
- 4 - If the voltage is normal, replace the sensor.
- 53. Inspect the wiring harness for shorts to power or ground that may cause the high voltage.
- 6 - Repair any damaged wiring found, then retest.
- 74. Check the engine shutoff valve to ensure it's functioning properly (can be actuated without sticking).
- 8 - If the valve is stuck or faulty, replace it.
Common causes
- Faulty engine shutoff valve position sensor
- Wiring issue in the sensor circuit
- Bad connector at the sensor or ECU
- Faulty engine shutoff valve itself
Typical repair cost
$$-$$$
Related codes
Frequently asked questions
Is it safe to drive with this code present?
It’s best not to drive the vehicle as it may lead to engine shutdown, risking safety.
Can this fault return after clearing?
Yes, if the underlying issue isn’t fixed, the fault will likely return.
Why does this code pair with SPN 2269?
Both codes relate to the engine shutoff system, indicating interconnected faults.
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