P2D01Motor Electronics Coolant Pump A Overspeed/Air in System
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2D01 is logged when the first electric pump of the motor electronics loop, which carries heat away from the inverter and drive-motor electronics, spins faster than commanded. A centrifugal pump that suddenly has nothing to push races, so the title points straight at air or a low coolant level. Ford lists P2D01 on 2020 hybrids: bulletin 20-2221 (Escape HEV built up to 10 June 2020, code in the BECM) and 20-2293/20-2345 (Explorer, Aviator and Police Interceptor Utility hybrid, code in the PCM). In both cases the degas bottle is checked first, and only with a correct level is the software update the fix, rated at 0.4 h. Ford's 2024 summary treats overspeed or dry running as its own pump fault type (B1). The seized pump is P2D00, slow running P2D02. Expect reduced power if the inverter heats up.
- What you may notice
- Malfunction indicator lamp on
- Coolant level in the degas bottle at or below minimum
- Gurgling or whining from the electric pump
- Reduced drive power when the inverter runs hot
- Likely causes
- LikelyLow coolant level or trapped air in the motor electronics loop, for example after service work
- PossibleMonitoring strategy in the control software (Ford 2020 hybrids, cured by reprogramming)
- PossibleExternal leak at hoses, connectors or the pump housing that keeps drawing in air
- RareLoose impeller or false speed feedback from the pump electronics
- 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: €40 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.