P0BE9 code meaning
Drive Motor A Phase V Current Sensor Circuit
Powertrain system Generic code P0Bxx codes Check engine light
What P0BE9 means
P0BE9 covers a general circuit fault of the phase V current sensor in the motor A inverter, meaning an electrical problem the controller does not narrow down to an offset, low or high condition. No manufacturer documents this exact code publicly. GM's hybrid tables for the 2011 Volt, the 2012 two-mode trucks and the 2016 to 2019 models list only the specific siblings P0BEA, P0BEB and P0BEC; GM's BAS Plus (eAssist) table lists phase current codes only for U and W. CARB requires hybrid sensor circuits to be monitored. Because the three phase currents are used together for torque control and their sum is cross-checked (P0BFD), a lost V signal normally forces reduced motor A operation.
P0BE9 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 6 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0BE9
- Hybrid system warning and malfunction indicator lamp
- Reduced power from drive motor A
Common causes of P0BE9
- Most likelyFailed phase V current sensor inside the inverter
- PossibleSupply or signal fault on the inverter's sensor board
- Less likelySoftware fault in the motor control processor
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor a phase v current sensorWiring harnessHybrid control module
What each part of P0BE9 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. |
| E9 | The exact fault in that area. |
What to do next
- Note P0BE9 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 P0BE9
What does P0BE9 mean?
P0BE9 means "Drive Motor A Phase V Current Sensor Circuit". P0BE9 covers a general circuit fault of the phase V current sensor in the motor A inverter, meaning an electrical problem the controller does not narrow down to an offset, low or high condition. It is a generic code, so it means the same on every make.
Is it safe to drive with P0BE9?
Drive gently and only to a workshop. With P0BE9 the car can go into limp mode (reduced power) to protect itself.
Will P0BE9 fail an emissions test?
Yes, it can. P0BE9 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 P0BE9 to fix?
Difficulty: workshop only. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P0BE9 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.