Transmission Range Sensor Circuit Malfunction (PRNDL Input)
There's a problem with the transmission range sensor 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 transmission range sensor tells the computer what gear you're in. If it fails, the computer can't tell if you're in park, reverse, or drive, which can mess up shifting and starting.
What the computer is actually seeing
The computer is reading an unexpected voltage from the transmission range sensor. It should see around 0.5-4.5 volts depending on the gear selected.
What a healthy reading looks like
Voltage input from the transmission range sensor should be between 0.5V (Park) and 4.5V (Low).
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 vehicle's transmission fluid level and condition. Add fluid if low and check for leaks.
- 22. Inspect the wiring and connectors to the transmission range sensor for damage or corrosion. Repair as necessary.
- 33. With the ignition on, measure voltage at the transmission range sensor connector. You should see between 0.5V and 4.5V depending on the gear chosen.
- 44. If the voltage is outside the expected range, replace the transmission range sensor. If the wiring is damaged, repair it and retest.
Common causes
- Faulty transmission range sensor
- Corroded or damaged wiring/connectors
- Bad transmission control module
- Low transmission fluid levels
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive because you might lose control over your gear selection, risking a stall or inability to shift.
Will this code come back after clearing?
It might, especially if the underlying problem isn't fixed, like a bad sensor or damaged wiring.
Why does this code pair with others like P0706?
Other codes often indicate similar electrical issues or related malfunctions in the transmission control system.
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