Fault codeP0707
MODERATETransmission Range Sensor Circuit Low Input
What this code means
Transmission Range Sensor Circuit Low Input.
P0707 is a generic code: it means the same thing on every make. P0707 belongs to family P07xx — Transmission. Its page explains how to read a code and groups all its codes by part.
Type of fault
The control unit reads a voltage on this circuit below its expected range. Usual causes: a wire shorted to ground or broken, a corroded or loose connector, or the component itself. Check the wiring and connector before replacing the part — that is where many of these faults turn out to be.
Gearbox range sensor
This sensor on the gearbox reads the position of the selector shaft: P, R, N, D and the manual positions. The gearbox control unit needs it to know which gear the driver has selected.
What you notice
Wrong position shown on the dashboard, harsh engagements, the engine not starting in P or N, sometimes the gearbox in limp mode.
How to check it
Check the adjustment of the selector cable: a sensor that does not exactly match the selector position triggers these codes. Then its connector on the gearbox, exposed to water and fluid leaks.
What to do
Have it checked this week. The car remains usable, but the fault will not clear itself and will fail the roadworthiness test.
Clearing a code switches the light off but repairs nothing: if the fault remains, the code comes back. Clearing a fault code yourself →
How to read this code
- PPowertrain
- 0standardised code
- 7Transmission
- 07P0707