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 PCM (powertrain control module) what gear the transmission is in. If this sensor is faulty, the vehicle may not know what gear it is supposed to be in, affecting shifting and drivability.
What the computer is actually seeing
The PCM is getting inconsistent or faulty signals from the transmission range sensor circuit, which indicates the position of the gear selector.
What a healthy reading looks like
The transmission range sensor should produce a signal between 0.5V (PARK) and 4.5V (LOW) depending on the gear position.
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 connector at the transmission range sensor for damage or corrosion. Fix any issues found. If okay, move to step 2.
- 22. Test the voltage at the transmission range sensor connector with the key on, engine off. Expect a voltage between 0.5V to 4.5V depending on gear position. If out of range, replace the sensor. If okay, proceed to step 3.
- 33. Verify the PCM is functioning by checking for updates or TSBs related to the system. If no updates available and all other components test fine, replace the PCM.
Common causes
- Faulty transmission range sensor
- Open or shorted circuit in the wiring
- Bad connector at the sensor
- PCM issues
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's best to avoid driving the vehicle too much as it can lead to erratic shifting and potentially cause further damage.
Will this fault code come back after repairs?
If the repairs are done correctly and all connections are secure, this code should not return.
Why does this code appear with other codes?
It's common for multiple codes to appear if there are issues affecting the same system, such as wiring or connectors.
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