P0707 indicates the vehicle's computer detects a voltage signal from the transmission range sensor that is lower than the expected minimum threshold. This sensor informs the computer which gear selector position is engaged. When the signal is too low, the computer cannot accurately determine gear selection.
The internal resistive track or contacts within the sensor wear out or fail, sending incorrect low voltage signals. This is the most common cause of this specific code.
Wires connecting the sensor to the control module may be frayed, broken, or shorted to ground. Exposure to heat and vibration often compromises insulation over time.
Corrosion or looseness at the sensor connector or control module connector disrupts signal voltage. Moisture intrusion is a frequent contributor to connection failure.
The sensor is mechanically installed out of alignment with the actual gear selector position. This often occurs after transmission service or sensor replacement.
A specific fuse protecting the sensor circuit may be open, causing a low voltage condition. This should be verified before replacing major components.
Internal processing failure is rare and should only be considered after all external circuits are verified. Replacement is seldom the actual fix for this code.
It is not recommended, as the vehicle may not start, may start in gear, or shift incorrectly.
No, PCM failure is rare; most cases are caused by the sensor itself or wiring issues.
Unlikely, as it indicates a hard circuit fault that usually requires repair to resolve.
Yes, the transmission range sensor performs the same function as the traditional neutral safety switch.