OBD-II code · Powertrain (generic)
P09A7 Gate Select Position Circuit C Range/Performance
The gate select position circuit C reports a range/performance fault. Selector gate position cannot be reliably measured on this channel.
Is it safe to drive with P09A7?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyPosition sensor failed
- PossibleWiring fault
- Less likelySensor element aged beyond calibration window
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Gate Select Position Sensor C, Wiring Harness, Tcm
Related codes
- P09A3Gate Select Position Circuit B Range/Performance
- P09A4Gate Select Position Circuit B Low
- P09A5Gate Select Position Circuit B High
- P09A6Gate Select Position Circuit C Circuit
- P09A8Gate Select Position Circuit C Low
- P09A9Gate Select Position Circuit C High
- P0A00Motor Electronics Coolant Temperature Sensor Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.