Transmission Range Sensor Circuit High Input
The transmission range sensor is sending a high voltage signal when it shouldn't.
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)
Inside the transmission, the range sensor tells the computer what gear it's in. A high voltage signal usually means there's an issue in the wiring or the sensor itself.
What the computer is actually seeing
The powertrain control module (PCM) receives a voltage signal that exceeds the expected range, indicating an erroneous position of the transmission range sensor.
What a healthy reading looks like
Expected voltage from the sensor: 0.5 to 4.5 volts, depending on the selected gear.
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. Check the wiring and connectors for the transmission range sensor for visible damage or corrosion. Repair if necessary.
- 22. Measure the voltage at the transmission range sensor connector with the key on (engine off). Expect 0.5 to 4.5 volts depending on position.
- 33. If voltage is out of range, test the sensor by unplugging it and checking for continuity of wires to the PCM.
- 44. If the wiring is okay, replace the transmission range sensor and clear the code.
- 55. If the code returns, check for PCM updates or reprogramming if applicable.
Common causes
- Faulty transmission range sensor
- Shorted or open wiring in the transmission range sensor circuit
- Poor electrical connections or corroded connectors
- Faulty PCM or software issue
Typical repair cost
$$
Related codes
Frequently asked questions
Can I drive with this code?
Yes, but the transmission may not shift properly, so it's best to fix it soon.
Will this code come back after I clear it?
If the underlying issue isn't fixed, yes, the code will return.
Why does this code pair with others?
It often indicates a fault in the transmission system that could affect multiple sensors.
Working a real vehicle right now?
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