Powertrain
generic / SAE
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number8 / E7
Possible causes
- Open in sensor signal wire high
- Position sensor failed medium
- Pin pushed back out of connector body low
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
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–2200 €
- Estimated time: 2–8 h
- Component: shift motor
- Component: shift motor position sensor
- Component: tcm
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012