OBD-II code · Powertrain (generic, extended)
P28E7 Shift Motor Position Sensor Circuit/Open
The TCM cannot read a valid signal from the shift motor rotor position sensor. Open wiring or sensor failure.
Is it safe to drive with P28E7?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyOpen in sensor signal wire
- PossiblePosition sensor failed
- Less likelyPin pushed back out of connector body
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
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Shift Motor, Shift Motor Position Sensor, Tcm
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.