P2B6BCoolant Pump D Control Module Overtemperature
- 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 P2B6B the integrated electronics of coolant pump D report excessive temperature, and the pump derates or switches itself off to survive. No manufacturer documents this code publicly; the equivalent for pump B is P2B64, which Ford lists as failure type 98 (system over temperature), and for pump A it is P2B9E. Heat in the driver usually builds when coolant around the pump is missing or aerated, when the motor fights a sticking impeller, or when the pump sits close to hot engine or exhaust parts. A failing power stage inside the pump can also trigger the report. CARB 13 CCR 1968.2 (e)(15) covers such output components. Check level, bleeding and free rotation before changing parts. While the pump rests, its circuit gets less flow and may run hot.
- What you may notice
- Warning lamp with stored code
- Pump D cuts out after longer operation and restarts after cooling
- Likely causes
- LikelyToo little coolant or air at the pump
- PossibleSluggish impeller overloads the motor
- PossiblePower stage inside the pump degraded
- 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: €100 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.