P0705: the gear selector position sensor circuit has a fault
The gear selector position sensor tells the gearbox computer which position you've moved the gear lever to, such as park, reverse, neutral or drive. This code means the electrical circuit for that sensor isn't behaving the way the computer expects. It covers the wiring and connector as much as the sensor itself.
You might notice
- The engine may not start in park or neutral, or the gear display may show the wrong gear
- The engine warning light comes on
- gear selector position sensor
- — a sensor that tells the gearbox computer which position you've moved the gear lever to
- gearbox computer
- — the separate computer, distinct from the engine control unit, that runs an automatic gearbox
What the code itself says
P0705 is a powertrain (engine, gearbox and drive system) code, and the 0 after the letter means it is a generic code with a standard meaning.
Grouped here as: Gearbox control — Gear selection, shift quality, fluid condition and the sensors and solenoids the gearbox's own control module reads. That grouping is ours, to help explain the code. The code's official family is the letter at the start.
This page is generic. Your car isn't.
A code on its own only tells you what the sensor saw, not what's actually wrong — and that changes next to your other codes. Read this one together with the rest of your scan and we'll work out what's really going on.
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