P287DElectric/Auxiliary Transmission Fluid Pump Motor Torque Out Of Range
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- 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.
- What you may notice
- Start-stop or electric drive no longer available
- Harsh engagement after engine restart
- MIL on
- Likely causes
- 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
- RareControl software needing an update
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.