P0C2E code meaning
Electric/Auxiliary Transmission Fluid Pump Control Module Feedback Signal High
Powertrain system Generic code P0Cxx codes Check engine light
What P0C2E means
P0C2E means the feedback line from the auxiliary pump control module sits above its valid range, for example shorted to supply voltage or no longer pulled down by the module. No manufacturer documents this exact code publicly. GM's use of the siblings shows what the line carries: on the Two-Mode hybrids P0C2B watches a status message from the pump controller every 1.5 s, Type B, and on the Chevrolet Bolt EV and EUV bulletin 21-NA-148 links the low variant P0C2D to bad solder joints inside the pump. A stuck-high line can hide real pump faults, so the controller usually stops relying on the pump. CARB requires circuit checks for such signals. P0C2D is the low side, P0C2C the plausibility check, P0C25 the high fault on the command line.
P0C2E at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0C2E
- MIL or Service Vehicle Soon lamp
- Start-stop or electric drive restricted
Common causes of P0C2E
- Most likelyFeedback line shorted to supply voltage
- PossibleOutput stage of the pump control module no longer switching
- Less likelyLost ground at the pump module letting the line float high
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Aux trans pump control moduleWiring harnessTCM
What each part of P0C2E 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. |
| 2E | The exact fault in that area. |
What to do next
- Note P0C2E 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 P0C2E
What does P0C2E mean?
P0C2E means "Electric/Auxiliary Transmission Fluid Pump Control Module Feedback Signal High". P0C2E means the feedback line from the auxiliary pump control module sits above its valid range, for example shorted to supply voltage or no longer pulled down by the module. It is a generic code, so it means the same on every make.
Is it safe to drive with P0C2E?
Drive gently and only to a workshop. With P0C2E the car can go into limp mode (reduced power) to protect itself.
Will P0C2E fail an emissions test?
Yes, it can. P0C2E 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 P0C2E to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P0C2E clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.