P2CF7Hybrid/EV Battery Pack Coolant Pump B 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
- P2CF7 is the underspeed fault of battery coolant pump B: the pump turns, but clearly below the commanded speed for longer than the controller tolerates. Compared with the stall code P2CF5 the rotor is still moving, so friction, a partly obstructed impeller, coolant that is too viscous in the cold or a sagging supply are likelier than a dead motor. Ford's 2024 summary handles underspeed (B2) as a distinct pump fault type. No manufacturer publicly documents P2CF7; the same fault on pump A, P2CF3, was cleared by reprogramming the battery controller on 2020 Ford hybrids (bulletin 20-2221, Escape HEV). Check supply voltage and ground under load, the condition of the coolant and the pump itself. Battery temperatures may rise and the system may cut power.
- What you may notice
- MIL or hybrid system warning
- Battery runs warmer than normal
- Likely causes
- LikelyWorn bearing or deposits slowing pump B
- PossibleSupply voltage of pump B dropping under load
- RareWrong or aged coolant too viscous at low temperature
- RareBattery controller software misjudging pump speed
- 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.