OBD-II code · Powertrain (generic, extended)
P2852 Shift Fork Position Sensor C/D Correlation
The position signals of shift fork sensors C and D do not correlate as expected for the active gear pre-selection. Plausibility check fails.
Is it safe to drive with P2852?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyOffset between the two sensors after replacement
- PossibleSensor harness incorrectly swapped
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
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Shift Fork Position Sensor C, Shift Fork Position Sensor D, Tcm
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.