P0C01 code meaning
Drive Motor A Current High
Powertrain system Generic code P0Cxx codes Check engine light
What P0C01 means
P0C01 is the overcurrent check of drive motor A, meant to protect the inverter's IGBTs. GM sets it when any phase current exceeds 725 A on the 2011 Volt, 600 A on the 2012 two-mode trucks and in the 2016 to 2019 tables, or 396 A on eAssist; since 2016 a too negative d-axis current (about -540 to -310 A, depending on stator temperature) also counts. A fast and a slow counter catch sudden and intermittent faults; Type A, one trip. GM PIP5246 links it on Volt and ELR to a damaged motor 1 stator. Stellantis lists it on the 2018/19 Wrangler eTorque (motor generator unit) and on the 2026 Wagoneer S and Cherokee, there caused by cross-threaded three-phase cable bolts. Expect limp mode.
P0C01 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 10 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0C01
- Limp mode with warning lamp
- Reduced propulsion or engine unavailable message
- Rough running or loud noise from the motor generator
Common causes of P0C01
- Most likelyDamaged or improperly torqued three-phase cable joints (Stellantis S2608000006)
- PossibleDamaged stator winding of motor A (GM PIP5246)
- PossibleOutdated hybrid control software (Jeep TSB 08-144-23)
- Less likelyFailing power switch or current measurement in the inverter
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor aDrive motor a inverter
What each part of P0C01 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| C | Area: hybrid propulsion. |
| 01 | The exact fault in that area. |
What to do next
- Note P0C01 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 P0C01
What does P0C01 mean?
P0C01 means "Drive Motor A Current High". P0C01 is the overcurrent check of drive motor A, meant to protect the inverter's IGBTs. It is a generic code, so it means the same on every make.
Is it safe to drive with P0C01?
Drive gently and only to a workshop. With P0C01 the car can go into limp mode (reduced power) to protect itself.
Will P0C01 fail an emissions test?
Yes, it can. P0C01 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 P0C01 to fix?
Difficulty: workshop only. A typical repair takes 1 to 10 hours of work. This is a job for a workshop.
Will P0C01 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.