Common Symptoms
- Check Engine Light illuminated
- Transmission may not shift properly or stays in one gear
- Vehicle may not start or crank but not start
- Backup lights not functioning correctly
- Speedometer or gear position indicator erratic or inoperative
- Transmission may default to limp mode
Most Likely Root Causes
- Faulty transmission range sensor or park/neutral position switch
- Damaged or corroded wiring harness to transmission range sensor
- Shorted sensor circuit or connector
- Transmission control module internal fault
- Misadjusted transmission range sensor linkage
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Component Location
The transmission range sensor is typically mounted on the side or top of the transmission housing near the shift linkage.
Manufacturer Notes
Some manufacturers require sensor adjustment or relearning procedures after replacement to ensure proper gear position detection.
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