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

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. 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 Wiring Diagrams article for schematic and connector information.

Fig 1: Powertrain Control Module Power (PCM Power) Relay Connector - A

Courtesy of FORD MOTOR CO.

Fig 2: Powertrain Control Module Power (PCM Power) Relay Connector - B

Courtesy of FORD MOTOR CO.

Fig 3: Powertrain Control Module Power (PCM Power) Relay Connector - C

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Expedition, Focus, Navigator, Sable, Taurus, Taurus X	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

Courtesy of FORD MOTOR CO.

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

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

Vehicle	Connector	Pin	Circuit
Expedition, Fusion, Milan, MKZ, Navigator	140 Pin	B30 B62	FPM FP
Focus	190 Pin	B32 B19	FPM FP
Ranger	170 Pin	B21 B12	FPM FP
All other vehicles	190 Pin	B30 B62	FPM FP