P0C2A code meaning
Electric/Auxiliary Transmission Fluid Pump A Motor Stalled
Powertrain system Generic code P0Cxx codes Check engine light
What P0C2A means
P0C2A means motor A of the auxiliary pump is commanded but does not turn, or turns far slower than required. Ford documents it in TSB 17-2056 for the 2016 F-150 2.7L with start-stop built from 1 May 2016: with the fluid above 38 °C the technician commands the pump through the PCM at duty cycles from 20 to 90 percent; if it runs, the PCM gets new software, if not, the auxiliary pump is replaced. GM shows how a stall is detected on the ELR pump controller, under its own code P1E3A: commanded minus actual speed above 200 rpm while more than 6.8 Nm is requested, Type A. Sensorless pumps cannot measure speed directly, so a stall shows up as a speed or current mismatch. P0C29 covers the driver stage, P0C28 overcurrent.
P0C2A at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.4 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0C2A
- MIL on
- Start-stop inactive, harsh engagement after stops
Common causes of P0C2A
- Most likelyAuxiliary pump seized or jammed by debris (Ford F-150 2.7L replaces the pump)
- PossiblePCM calibration causing false stall detection (Ford TSB 17-2056)
- Less likelyVery cold, thick fluid or wrong fluid type raising drag
- Less likelyOpen phase so the motor cannot develop torque
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Aux trans pump a motor
What each part of P0C2A 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. |
| 2A | The exact fault in that area. |
What to do next
- Note P0C2A 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 P0C2A
What does P0C2A mean?
P0C2A means "Electric/Auxiliary Transmission Fluid Pump A Motor Stalled". P0C2A means motor A of the auxiliary pump is commanded but does not turn, or turns far slower than required. It is a generic code, so it means the same on every make.
Is it safe to drive with P0C2A?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0C2A fail an emissions test?
Yes, it can. P0C2A 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 P0C2A to fix?
Difficulty: medium. A typical repair takes 0.4 to 2 hours of work. This is a job for a workshop.
Will P0C2A clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.