Pinpoint Tests Ma: Fuel Pump Control - Low Pressure Pump: Introduction
WARNING: This page is about a different car, the 2020 Ford F-550 Super Duty, 2020 Ford F-450 Super Duty, 2020 Ford F-350 Super Duty, 2020 Ford F-250 Super Duty, and 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.
This pinpoint test is intended to diagnose the following:
- fuel pump (FP) (9H307)
- fuel pump control module (9D412)
- fuel pump relay
- harness circuits: B+, GND, FP, FPC, FPM, FPPWR, FPRTN, and VPWR Fuel
- PCM (12A650)
Harness Side
| Circuit | Pin |
|---|---|
| FPPWR (Fuel Pump Power) | 4 |
| FPRTN (Fuel Pump Return) | 3 |
Harness Side
| Circuit | Pin |
|---|---|
| VPWR Fuel | 1 |
| GND (Ground) | 4 |
| FPC (Fuel Pump Command) | 3 |
| FPM (Fuel Pump Monitor) | 7 |
| FPPWR (Fuel Pump Power) | 5 |
| FPRTN (Fuel Pump Return) | 8 |
Harness Side
| Circuit | Pin |
|---|---|
| VPWR Fuel | 19 |
| FP (Fuel Pump) | 26 |
Harness Side
| Circuit | Pin |
Harness Side
| Circuit | Pin |
|---|---|
| FP (Fuel Pump) | 19 |
| FPC (Fuel Pump Command) | 78 |
| FPM (Fuel Pump Monitor) | 34 |
Harness Side
| Circuit | Pin |