P0E0F code meaning
Generator Inverter Power Supply A Circuit/Open
Powertrain system Generic code P0Exx codes Check engine light
What P0E0F means
P0E0F is set when the generator inverter loses one of its internal supplies, supply A, or the line to it is interrupted. Which supply carries the letter A is up to the manufacturer; usually it is the low-voltage feed of the gate drivers that switch the power transistors. No manufacturer documents P0E0F publicly. The drive motor counterpart P0C0B shows how such a check works at GM: the IGBT module itself reports a bias fault once its gate drive supply drops below a threshold, which the 2011 Volt treats as Type A after a single 2.08 ms event and a 2019 table after 0.168 s within a 0.2 s window. CARB requires circuit monitoring of hybrid components. Without gate drive supply the generator cannot be controlled at all. Low and high variants: P0E10, P0E11; supply B: P2CC5.
P0E0F at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor0.5 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0E0F
- Hybrid system warning light and MIL on
- Generator out of operation, vehicle may not reach ready state
Common causes of P0E0F
- PossibleGate driver supply inside the inverter failed
- Possible12 V feed, fuse or connector of the inverter interrupted
- Less likelyDeep 12 V dips during start-up
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Generator inverter aWiring harnessHybrid control module
What each part of P0E0F means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 0F | The exact fault in that area. |
What to do next
- Note P0E0F 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 P0E0F
What does P0E0F mean?
P0E0F means "Generator Inverter Power Supply A Circuit/Open". P0E0F is set when the generator inverter loses one of its internal supplies, supply A, or the line to it is interrupted. It is a generic code, so it means the same on every make.
Is it safe to drive with P0E0F?
Drive gently and only to a workshop. With P0E0F the car can go into limp mode (reduced power) to protect itself.
Will P0E0F fail an emissions test?
Yes, it can. P0E0F 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 P0E0F to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 5 hours of work. This is a job for a workshop.
Will P0E0F clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.