P0B11 code meaning
Hybrid/EV Battery Pack Current Sensor B Circuit High
Powertrain system Generic code P0Bxx codes Check engine light
What P0B11 means
P0B11 is set when current sensor B delivers a signal above its valid range. In GM's dual-range design, channel B is the fine channel for small currents: the 2019 battery energy control module table fails it above +24 A (ADC count over 4013) for 1.6 s within a 2 s window, Type A, one trip, and the 2011 Volt table above +23 A for 175 ms within 250 ms, one trip. Toyota maps its internal code P0B0E15, excessively high or open IB1 channel voltage, to P0B11 on the 2020-25 RAV4 Hybrid, with one-trip logic and immediate MIL. An open ground, a signal shorted to the supply or a failed sensor are typical. The low-side code is P0B10, the sensor A equivalent P0AC2.
P0B11 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0B11
- MIL and hybrid system warning on
- Battery power limited, less electric driving
- Implausible state-of-charge display
Common causes of P0B11
- Most likelyOpen signal or ground wire of sensor B
- PossibleSignal line shorted to the sensor supply or 12 V
- PossibleCurrent sensor or junction block with integrated sensor defective
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 P0B11 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. |
| 11 | The exact fault in that area. |
What to do next
- Note P0B11 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 P0B11
What does P0B11 mean?
P0B11 means "Hybrid/EV Battery Pack Current Sensor B Circuit High". P0B11 is set when current sensor B delivers a signal above its valid range. It is a generic code, so it means the same on every make.
Is it safe to drive with P0B11?
Drive gently and only to a workshop. With P0B11 the car can go into limp mode (reduced power) to protect itself.
Will P0B11 fail an emissions test?
Yes, it can. P0B11 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 P0B11 to fix?
Difficulty: workshop only. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P0B11 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.