P2D02Motor Electronics Coolant Pump A Underspeed
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- With P2D02 the controller sees pump A of the motor electronics cooling loop turning, but clearly below its target speed for longer than allowed. The rotor is not locked, which separates it from P2D00; a stiff bearing, deposits on the impeller, cold and thick coolant or a supply that sags under load are therefore more likely than a dead motor. Ford names P2D02 in the 2020 Escape HEV bulletin 20-2221 (BECM) and in the PCM-based bulletins 20-2293/20-2345 for the hybrid Explorer, Aviator and Police Interceptor Utility: with the coolant level confirmed, new software resolved the lamp. Ford's 2024 summary keeps underspeed as a separate pump fault type (B2), checked over 5 s with at least 11 V. Excess speed is P2D01. Less flow lets the inverter warm up and may limit power.
- What you may notice
- Malfunction indicator lamp on
- Higher inverter or motor electronics temperatures in live data
- Power limitation under sustained load
- Likely causes
- PossibleStiff bearing or deposits on the impeller of pump A
- PossibleControl software strategy (Ford 2020 hybrids, fixed by reprogramming)
- PossibleVoltage drop on the pump feed or ground under load
- RareWrong, contaminated or aged coolant raising viscosity at low temperature
- 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: €60 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.