PINPOINT TEST KA: Fuel Pump (FP) Relay: Introduction

WARNING: This page does not describe the selected car, but rather 35 other vehicles, including the 2007 Mercury Mountaineer, 2007 Mercury Monterey, 2007 Mercury Montego, 2007 Mercury Milan, and 2007 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.

This pinpoint test is intended to diagnose the following:

fuel pump relay (9345)
inertia fuel shutoff (IFS) switch (9341)
harness circuits: B+, VPWR, FP, GND, FPM, and FP PWR
powertrain control module (PCM) (12A650)

The VPWR and FP circuits may be reversed in the harness connector. Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.

Fig 1: Fuel Pump (FP) Relay Connector - A

Courtesy of FORD MOTOR CO.

Fig 2: Fuel Pump (FP) Relay Connector - B

Courtesy of FORD MOTOR CO.

Fig 3: Fuel Pump (FP) Relay Connector - C

Vehicle	Connector	Pin	Circuit
Expedition, Navigator	A	30 87 85 86	B+ FPPWR FP VPWR
Ranger	B	3 5 1 2	B+ FPPWR FP VPWR
All other vehicles	C	3 5 1 2	B+ FPPWR FP VPWR

Fig 4: Inertia Fuel Shutoff (IFS) Switch Connector

Pin	Circuit
1	FPPWR-B (Fuel Pump Power - B)
2	FPPWR-A (Fuel Pump Power - A)

Powertrain Control Module (PCM) Connector

For PCM connector views or reference values, refer to the REFERENCE VALUES article.

Vehicle	Connector	Pin	Circuit
Edge, MKX	190 Pin	B30 B62	FPM FP
Freestar/Monterey	104 Pin	40 80	FPM FP
Ranger	170 Pin	B21 B12	FPM FP
All other vehicles	140 Pin	B30 B62	FPM FP