P1185 Fuel Pump Temperature Sensor High (Diesel)
What does P1185 mean on a Ford?
P1185 — Fuel Pump Temperature Sensor High (Diesel). This Ford-enhanced code applies to F-250/F-350 Super Duty diesel models.
Common causes of P1185
- Failing pump temperature sensor
- Shorted sensor circuit
- Overheated pump from fuel starvation
- Corroded connector
- Control module fault
How to fix P1185
- Check fuel supply and filter for starvation causes
- Test sensor resistance
- Inspect wiring for shorts
- Verify pump cooling fuel flow
- Replace the sensor after excluding overheating