P2841Shift Fork D Position Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2841 indicates that fork D reports a believable voltage but an implausible position. GM's 2023 table runs the rod 4 consistency test in the Corvette only when neither the even-clutch speed signal nor the output speed signal has shown an electrical fault for at least 100 ms, so the comparison has trustworthy speeds behind it. During engagement the sensor must reach the learned engaged point within 1100 µm once over 600 N push the rod; during release, a rod that stays within 1000 µm of its starting point counts against it. Type A, with a recovery attempt on the even shaft synchronizer. Ford's 2024 summary uses P2841 for TR9070 rod sensor 4 consistency and P277F for its drift, and Mercedes-Benz names it a fork D sensor malfunction on the 8G-DCT.
- What you may notice
- Hesitation or repeated attempts on even-gear shifts
- Gear not held, slipping back to neutral
- Warning lamp with reduced gear range
- Likely causes
- LikelyRod 4 or its synchronizer sticking so the fork lags behind the command
- PossibleOutdated learned positions after a clutch or sensor replacement
- PossibleFork D sensor or magnet shifted in its mount
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €3,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.