P2BD5Motor Electronics Coolant Pump C Control Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2BD5 flags the command line of the third electric coolant pump in the inverter and motor electronics loop as sitting at too low a level. With a low-side or PWM driver this usually means the wire or the pump input is shorted to ground, so the pump either runs unchecked or not at all. No manufacturer documents P2BD5 publicly. The nearest published logic is Ford's 2019 hybrid summary for pump A: P0A06 is stored once the pump output driver has reported a fault for more than 5 s, with 6 to 19 V on the 12 V system. CARB requires every electronic output of inverter thermal management to be checked for such circuit faults. P2BD4 covers an open line, P2BD6 a short to voltage. If the pump stops, drive power is cut back before the electronics overheat.
- What you may notice
- Warning for the hybrid or drive system, often with the check engine light
- Pump C runs constantly or stays silent regardless of command
- Reduced drive power once the electronics warm up
- Likely causes
- LikelyPump C control wire chafed through and touching ground
- PossibleWater or corrosion in the pump connector bridging the signal pin to ground
- PossibleShorted input stage inside pump C
- RareFaulty output driver in the controlling module
- 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.