OBD-II code · Powertrain (generic, extended)
P2068 Fuel Level Sensor B Circuit High
Fuel-level sensor B reads above upper plausibility — open signal or short to B+. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P2068?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen signal line
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.7–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Fuel Level Sensor B
Related codes
- P0463Fuel Level Sensor A Circuit High
- P2065Fuel Level Sensor B Circuit
- P25DAFuel Level Sensor C Circuit High
- P2066Fuel Level Sensor B Performance
- P2067Fuel Level Sensor B Circuit Low
- P2069Fuel Level Sensor B Circuit Intermittent
- P206AReductant Quality Sensor Circuit
- P206BReductant Quality Sensor Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.