OBD-II code · Powertrain (generic)
P0E03 Generator Phase U Current Sensor Circuit High
The generator phase U current sensor reports a circuit high fault. 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 P0E03?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to B+
- PossibleOpen sensor
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Generator Phase U Current Sensor, Wiring Harness, Hybrid Control Module
Related codes
- P0E07Generator Phase V Current Sensor Circuit High
- P0E0BGenerator Phase W Current Sensor Circuit High
- P0E00Generator Phase U Current Sensor Circuit
- P0E01Generator Phase U Current Sensor Circuit Range/Performance
- P0E02Generator Phase U Current Sensor Circuit Low
- P0E04Generator Phase V Current Sensor Circuit
- P0E05Generator Phase V Current Sensor Circuit Range/Performance
- P0E06Generator Phase V Current Sensor Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.