P0BF2 code meaning
Drive Motor B Phase U Current Sensor Circuit Range/Performance
Powertrain system Generic code P0Bxx codes Check engine light
What P0BF2 means
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.
P0BF2 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor0.5 to 6 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0BF2
- Malfunction indicator lamp
- Turtle (limp home) light and Service 4WD light (Jeep)
- Reduced electric drive power
Common causes of P0BF2
- Most 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
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor b phase u current sensorWiring harnessHybrid control module
What each part of P0BF2 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| B | Area: hybrid propulsion. |
| F2 | The exact fault in that area. |
What to do next
- Note P0BF2 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0BF2
What does P0BF2 mean?
P0BF2 means "Drive Motor B Phase U Current Sensor Circuit Range/Performance". GM runs P0BF2 as the offset test of the phase U current sensor in the motor B inverter. It is a generic code, so it means the same on every make.
Is it safe to drive with P0BF2?
Drive gently and only to a workshop. With P0BF2 the car can go into limp mode (reduced power) to protect itself.
Will P0BF2 fail an emissions test?
Yes, it can. P0BF2 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0BF2 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 6 hours of work. This is a job for a workshop.
Will P0BF2 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.