P0BF2Drive Motor B Phase U Current Sensor 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
- GM runs P0BF2 as the offset test of the phase U current sensor in the motor B inverter. Each time the vehicle is started, while no current flows through the motor, the controller learns the sensor's zero point and compares it with a limit: 30 A on the 2011 Volt (Type A) and in the 2016 tables (Type A, after 0.1 s), 30 A on the 2012 and 2013 two-mode trucks (Type B, two trips, power stage open, P0BF3/P0BF4 not active) and 35 A in a 2019 table (Type A, after 0.4 s). Jeep lists P0BF2 on the 2020 Renegade and Compass 1.3 PHEV for Europe, together with the other motor A and B phase current codes, the turtle light and Service 4WD; the fix there is a software update of the hybrid control processors.
- What you may notice
- Malfunction indicator lamp
- Turtle (limp home) light and Service 4WD light (Jeep)
- Reduced electric drive power
- Likely causes
- LikelyHybrid control processor software (Jeep bulletin 08-056-21/08-057-21)
- PossibleZero point of the motor B phase U current sensor drifted past the limit
- PossibleFaulty current sensing electronics in the power inverter module
- 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: €100 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.