P0B0F code meaning
Hybrid/EV Battery Pack Current Sensor B Circuit Range/Performance
Powertrain system Generic code P0Bxx codes Check engine light
What P0B0F means
P0B0F flags a current sensor B signal that is electrically in range but implausible, for example an offset at zero current or a value that does not match the other measurement. No manufacturer documents this exact code publicly. GM handles comparable faults differently: on its dual-range sensor, the 2019 table P0B13 compares sensors A and B and fails when they differ by more than 10 A while both read between -20 and 20 A, 400 of 500 samples at 25 ms, Type A; offset errors of sensor A are P0AC0. CARB requires rationality checks for hybrid battery inputs. A drifting current reading corrupts the state-of-charge calculation, so the controller tends to narrow the usable battery window.
P0B0F at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 5 hours
- Clears after repairAfter a drive cycle
Symptoms of P0B0F
- Hybrid or EV warning, MIL possible
- State of charge jumps or drifts
- Reduced battery power
Common causes of P0B0F
- Most likelyCurrent sensor B offset drift or ageing
- PossibleGround offset or high resistance in the sensor wiring
- Less likelySensor displaced on the busbar or magnetic interference
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Hv battery pack current sensor bWiring harnessBms
What each part of P0B0F 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. |
| 0F | The exact fault in that area. |
What to do next
- Note P0B0F 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 P0B0F
What does P0B0F mean?
P0B0F means "Hybrid/EV Battery Pack Current Sensor B Circuit Range/Performance". P0B0F flags a current sensor B signal that is electrically in range but implausible, for example an offset at zero current or a value that does not match the other measurement. It is a generic code, so it means the same on every make.
Is it safe to drive with P0B0F?
Drive gently and only to a workshop. With P0B0F the car can go into limp mode (reduced power) to protect itself.
Will P0B0F fail an emissions test?
Yes, it can. P0B0F 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 P0B0F to fix?
Difficulty: workshop only. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P0B0F clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.