Powertrain
generic / SAE
P2831
Shift Fork A Position Circuit
The TCM cannot read a valid position signal from shift fork A position sensor. Selector engagement state is unknown.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number8 / 31
Possible causes
- Position sensor failed high
- Wiring or connector fault medium
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: 400–2500 €
- Estimated time: 3–10 h
- Component: shift fork a
- Component: shift fork position sensor a
- Component: wiring harness
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012