P1235 Fuel Pump Control Out of Range
What does P1235 mean on a Ford?
P1235 — Fuel Pump Control Out of Range. This Ford-enhanced code applies to F-150, Explorer, Expedition with electronic fuel pump control.
Common causes of P1235
- Failing fuel pump driver module with erratic output
- Corroded pump control wiring
- Fuel pump drawing out-of-range current
- Poor module ground
- PCM command circuit fault
How to fix P1235
- Monitor commanded versus actual pump duty cycle on a scanner
- Inspect the driver module and connector for corrosion
- Measure pump current draw against specification
- Verify module ground integrity
- Replace the module or pump per current and command tests