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.
High severity. Can I keep driving?If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.
Symptoms
- Malfunction indicator lamp
- Turtle (limp home) light and Service 4WD light (Jeep)
- Reduced electric drive power
Most likely causes
- Hybrid control processor software (Jeep bulletin 08-056-21/08-057-21)
- Zero point of the motor B phase U current sensor drifted past the limit
- Faulty current sensing electronics in the power inverter module
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- It can trigger limp mode.
- It affects emissions.
What each character of P0BF2 means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- B: Subsystem depends on the code range
- F2: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0BF2?
If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.
What causes code P0BF2?
The most common causes are: hybrid control processor software (Jeep bulletin 08-056-21/08-057-21); zero point of the motor B phase U current sensor drifted past the limit; faulty current sensing electronics in the power inverter module.
Related codes
- P0BF1Drive Motor B Phase U Current Sensor Circuit
- P0BF3Drive Motor B Phase U Current Sensor Circuit Low
- P0BF4Drive Motor B Phase U Current Sensor Circuit High
- P0BF6Drive Motor B Phase V Current Sensor Circuit Range/Performance
- P0BFADrive Motor B Phase W Current Sensor Circuit Range/Performance
- P0BE6Drive Motor A Phase U Current Sensor Circuit Range/Performance
- P0BFEDrive Motor B Phase U-V-W Current Sensor Correlation
Sources
- gsi.ext.gm.com: 19OBDG01 Hybrid Diagnostics
- gsi.ext.gm.com: 16OBDG02 Hybrid Diagnostics
- gsi.ext.gm.com: 11OBDG01 HYBRID Diagnostics
- gsi.ext.gm.com: 12OBDG06 Hybrid Diagnostics
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.