P2B67Coolant Pump D 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
- P2B67 means the control line of coolant pump D sits too low, typically because it is shorted to ground or the driver stage sees excess current. No manufacturer publishes this code. Ford's comparable entries for pumps A and B (P2602, P261C) set when the smart driver in the engine computer reports an output fault, checked continuously above 11 V. Chafed insulation against body or engine, water in the connector and an internally shorted pump input are the usual suspects. Depending on how the output is wired, a ground short can leave the pump running nonstop or silence it completely. With the pump unplugged, measure the resistance of the signal wire to ground before replacing parts. Open circuit is P2B66, short to voltage P2B68; pump C has P26F5.
- What you may notice
- Warning lamp with stored code
- Pump D runs constantly or not at all
- Likely causes
- LikelyControl wire chafed through and shorted to ground
- PossibleMoisture or corrosion in the pump connector
- RareControl input inside the pump shorted
- 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: €50 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.