P2CF3Hybrid/EV Battery Pack 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
- P2CF3 is set when battery coolant pump A turns more slowly than the controller commands, although it is powered and not fully blocked. Typical reasons are a sluggish bearing, deposits on the impeller, low supply voltage or a pump motor that has lost strength; a faulty speed signal can produce the same picture. Ford uses P2CF3 on 2020 hybrids: bulletin 20-2221 (Escape HEV produced until 10 June 2020, code stored in the BECM) and 20-2293/20-2345 (Explorer, Aviator and Police Interceptor Utility hybrid) clear it, along with other pump codes, by reprogramming once the coolant level has been confirmed as correct. In Ford's 2024 OBD summary underspeed is a separate pump failure category (B2). Overspeed or dry running is P2B29, a seized pump P0CFF. The battery may run warmer and power may be limited.
- What you may notice
- MIL or hybrid system warning
- Battery temperature higher than usual
- Reduced drive or charging power
- Likely causes
- LikelyWorn bearing or deposits slowing the pump
- PossibleBattery controller software misreading pump speed (Ford 2020 hybrids)
- PossibleVoltage drop on the pump feed or ground under load
- RareImplausible 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: €60 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.