OBD-II code · Powertrain (generic, extended)
P271C Park Pawl Position Sensor B Circuit Low
The redundant park pawl position sensor B reads below the lower diagnostic threshold. Redundancy for the park-engagement check is lost.
Is it safe to drive with P271C?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyInternal short in sensor element
- PossibleSignal wire shorted to ground
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–5 h
- Emissions test
- Usually unaffected
- Parts involved
- Park Pawl Position Sensor B, Wiring Harness
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.