P0BFEDrive Motor B Phase U-V-W Current Sensor Correlation
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0BFE applies the phase balance test to drive motor B: the controller adds the U, V and W current readings, which should cancel out, and sets the code when the absolute sum stays above a limit. GM uses 156 A on the 2011 Volt and 110 A on the 2012 and 2013 two-mode trucks (Type A, one trip, main relay closed) and 110 A for 0.0032 of 0.0038 s in the 2016 and 2019 tables (Type A). It catches a sensor that reads wrong while each signal alone stays in range, unlike the per-phase codes P0BF2 to P0BFC. GM's single-motor eAssist has no such code. Jeep lists P0BFE on the 2020 Renegade and Compass 1.3 PHEV (EMEA) with the turtle and Service 4WD lights; reprogramming the hybrid processors is the fix.
- What you may notice
- Malfunction indicator lamp and hybrid warning
- Turtle (limp home) light and Service 4WD light (Jeep)
- Reduced power from drive motor B
- Likely causes
- LikelyHybrid control processor software (Jeep bulletin 08-056-21/08-057-21)
- PossibleOne motor B phase current sensor reading wrong but still within its own limits
- 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.