Transmission Range Sensor Circuit Range/Performance Problem
Transmission range sensor is out of expected range or not performing correctly.
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 which gear the transmission is in. If it sees a value outside of the normal range, like it thinks it's in 'Drive' when it's actually in 'Reverse', that can mess up shifting and performance.
What the computer is actually seeing
The computer monitors the position and voltage from the transmission range sensor. It expects certain voltage levels corresponding to each gear position (e.g., 0V for 'Park', 1V for 'Neutral', etc.). When it sees an unexpected voltage at the sensor, it triggers a fault.
What a healthy reading looks like
Expected voltages at the transmission range sensor: Park: 0V, Neutral: 1V, Drive: 2V, Reverse: 3V. Exact values may vary by vehicle make/model.
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 to the transmission range sensor for damage or corrosion. Repair as needed. Decision Point: Are the connections good? Yes = go to step 2; No = fix the wiring/connectors and retest.
- 22. Inspect the transmission fluid level and condition. Make sure fluid levels are correct and fluid is not burnt. Decision Point: Is the fluid okay? Yes = go to step 3; No = Top off or change the transmission fluid as required and retest.
- 33. Measure the voltage at the transmission range sensor connector while moving through all gear positions. Decision Point: Are the voltages within expected ranges? Yes = go to step 4; No = replace the transmission range sensor and retest.
- 44. Check for any additional fault codes that may indicate further problems. Decision Point: Are there related codes? Yes = diagnose those codes; No = clear codes and test drive to see if code returns.
Common causes
- Damaged or corroded wiring to the transmission range sensor
- Failed transmission range sensor
- Improper transmission fluid level or quality
- Connector issues at the transmission range sensor
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive with this code as it can affect shifting and lead to transmission damage.
Will this code come back after clearing?
If underlying issues aren't fixed, the code will likely return.
Why does this code pair with other transmission codes?
Transmission issues often affect multiple components and sensors, leading to multiple fault codes.
Working a real vehicle right now?
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