PINPOINT TEST KB: Fuel Pump Driver Module: Introduction

WARNING: Crown Victoria Police Interceptor vehicles equipped with fire suppression system, refer to part 419-03 for Important Safety Warnings. Failure to follow these instructions may result in personal injury.

This pinpoint test is intended to diagnose the following:

fuel pump driver module (FPDM) (9D370) and (9D372)
FPDM power supply relay
inertia fuel shutoff (IFS) switch (9341)
harness circuits: B+, GND, FPC, FPM, FPM2, FP PWR, FP2PWR, FP RTN, FP2RTN, VPWR Fuel, VPWR Fuel 2, and PWRGND
powertrain control module (PCM) (12A650)

Fig 1: Fuel Pump Driver Module (FPDM2) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
2	FPRTN (Fuel Pump Return)
4	FPPWR (Fuel Pump Power)
6	FPC (Fuel Pump Command)
1	FPM (Fuel Pump Monitor)
3	PWRGND (Power Ground)
5	VPWR Fuel

Fig 2: Fuel Pump Driver Module 2 (FPDM2) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
2	FP2RTN (Fuel Pump 2 Return)
4	FP2PWR (Fuel Pump 2 Power)
6	FPC (Fuel Pump Command)
1	FPM2 (Fuel Pump Monitor 2 - Rear\Secondary Pump)
3	PWRGND (Power Ground)
5	VPWR Fuel 2

Refer to the Wiring Diagrams article for schematic and connector information. For F-150 and Mark LT, the FPDM PWR relay is integral to the PDJB.

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

Courtesy of FORD MOTOR CO.

Fig 4: Fuel Pump Driver Module Power (FPDM PWR) Relay Connector - B

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Crown Victoria, Grand Marquis, Town Car	A	5 1 2 3	VPWR Fuel GND VPWR B+
Escape/Mariner, F-Super Duty	B	87 85 86 30	VPWR Fuel GND VPWR B+
All other vehicles	A	5 2 1 3	VPWR Fuel GND VPWR B+

Refer to the Wiring Diagrams article for schematic and connector information.

Fig 5: Powertrain Control Module Power (PCM Power) Relay Connector - A

Courtesy of FORD MOTOR CO.

Pin	Circuit
5	VPWR Fuel 2
2	GND (Ground)
1	VPWR (Vehicle Power)
3	B+ (Battery Positive Voltage)

Fig 6: Inertia Fuel Shutoff (IFS) Switch Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
2	VPWR Fuel - A
1	VPWR Fuel - B

This applies to applications with an FPDM PWR relay integral to the PDJB.

Fig 7: Power Distribution Junction Box (PDJB) Connector - B

Courtesy of FORD MOTOR CO.

Pin	Circuit
3	VPWR Fuel

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

Vehicle	Connector	Pin	Circuit
Escape/Mariner	150 (50-50-50) Pin	B12 B21	FPC FPM
F-150, Mark LT	190 Pin	B62 B30	FPC FPM
Mustang 5.4L	170 Pin	T18 B12 B21	FPM2 FPC FPM
All other vehicles	170 Pin	B12 B21	FPC FPM