Pinpoint Tests MA: Fuel Pump Control - Low Pressure Pump: Introduction

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)

Fig 1: Fuel Pump (FP) Assembly Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-650/F-750	A	1 2	FPGND FPPWR-B
Transit Connect	B	5 1	FPRTN FPPWR
All other vehicles	C	3 4	FPRTN FPPWR

Fig 2: Fuel Pump Control Module Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
8	FPRTN (Fuel Pump Return)
5	FPPWR (Fuel Pump Power)
7	FPM (Fuel Pump Monitor)
3	FPC (Fuel Pump Command)
4	GND (Ground)
1	VPWR Fuel

Fig 3: Fuel Pump (FP) Relay Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
2	FP (Fuel Pump)
1, 3	B+ (Battery Positive Voltage)
5	VPWR Fuel

Fig 4: Body Control Module-F (BCM-F) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
13	IES (Impact Event Signal)

Fig 5: Battery Junction Box-A (BJB-A) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-Series Super Duty	A	26 19	FP VPWR Fuel
Transit Connect	B	6	FP

Fig 6: Battery Junction Box-B (BJB-B) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
50	VPWR Fuel

Fig 7: Battery Junction Box-H (BJB-H) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
2	FPRPWR (Fuel Pump Relay Power)
3	FPRC (Fuel Pump Relay Control)

Fig 8: Battery Junction Box-G (BJB-G) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
34	VPWR (Vehicle Power)

Fig 9: Powertrain Control Module-B (PCM-B) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-150	A	4 19 34 78	FPPWR FP FPM FPC
F-Series Super Duty	A	4 19 34 78	FPPWR FP FPM FPC
Transit Connect	B	44 60 46 40	IES FP FPM FPC
All other vehicles	A	4 19	FPPWR FP