OBD-II code · Powertrain (generic, extended)
P2E21 Drive Motor A Phase Y Current Sensor Circuit Low
The current sensor for drive motor A phase Y reports a circuit low fault. Phase current measurement is unreliable.
Is it safe to drive with P2E21?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCurrent sensor failed
- PossibleWiring fault
- Less likelyConnector pins corroded - high contact resistance
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Drive Motor A Phase Y Current Sensor, Wiring Harness, Hybrid Control Module
Related codes
- P0BE7Drive Motor A Phase U Current Sensor Circuit Low
- P0BEBDrive Motor A Phase V Current Sensor Circuit Low
- P0BEFDrive Motor A Phase W Current Sensor Circuit Low
- P0BF3Drive Motor B Phase U Current Sensor Circuit Low
- P0BF7Drive Motor B Phase V Current Sensor Circuit Low
- P0BFBDrive Motor B Phase W Current Sensor Circuit Low
- P2E1DDrive Motor A Phase X Current Sensor Circuit Low
- P2E25Drive Motor A Phase Z Current Sensor Circuit Low
- P2E1EDrive Motor A Phase X Current Sensor Circuit High
- P2E1FDrive Motor A Phase Y Current Sensor Circuit
- P2E20Drive Motor A Phase Y Current Sensor Circuit Range/Performance
- P2E22Drive Motor A Phase Y Current Sensor Circuit High
- P2E23Drive Motor A Phase Z Current Sensor Circuit
- P2E24Drive Motor A Phase Z Current Sensor Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.