P287D code meaning
Electric/Auxiliary Transmission Fluid Pump Motor Torque Out Of Range
Powertrain system Generic code P28xx codes Check engine light
What P287D means
P287D means the motor of the electric auxiliary transmission pump produces a torque outside its expected band, as estimated by the pump controller from phase current and speed. Too little torque hints at a pump that runs dry or draws air; too much hints at a dragging rotor, cold thick fluid or a blocked passage. No manufacturer documents P287D publicly; the duty to monitor the pump stems from CARB 13 CCR 1968.2. Neighbouring cases set the scene: Ford's TSB 17-2056 has the 2016 F-150 2.7L with start-stop store P0C2A when its auxiliary pump does not run, and FCA lists P2797, pump performance, for the Pacifica plug-in hybrid. Because the pump keeps clutches filled while the engine is stopped, a fault often disables start-stop or causes a harsh engagement on restart.
P287D at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P287D
- Start-stop or electric drive no longer available
- Harsh engagement after engine restart
- MIL on
Common causes of P287D
- Most likelyLow fluid or air drawn into the auxiliary pump
- PossibleDragging pump rotor or blocked suction or delivery path
- PossibleWorn pump motor or faulty integrated controller
- Less likelyControl software needing an update
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Aux trans pump aPump motorTransmission fluid
What each part of P287D means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 8 | Area: transmission. |
| 7D | The exact fault in that area. |
What to do next
- Note P287D 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 P287D
What does P287D mean?
P287D means "Electric/Auxiliary Transmission Fluid Pump Motor Torque Out Of Range". P287D means the motor of the electric auxiliary transmission pump produces a torque outside its expected band, as estimated by the pump controller from phase current and speed. It is a generic code, so it means the same on every make.
Is it safe to drive with P287D?
Drive gently and only to a workshop. With P287D the car can go into limp mode (reduced power) to protect itself.
Will P287D fail an emissions test?
Yes, it can. P287D 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 P287D to fix?
Difficulty: hard. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P287D clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.