P0C2EElectric/Auxiliary Transmission Fluid Pump Control Module Feedback Signal High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- 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.
- What you may notice
- MIL or Service Vehicle Soon lamp
- Start-stop or electric drive restricted
- Likely causes
- LikelyFeedback line shorted to supply voltage
- PossibleOutput stage of the pump control module no longer switching
- RareLost ground at the pump module letting the line float high
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.