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.

Harness Side

Circuit	Pin
FPPWR (Fuel Pump Power)	4
FPRTN (Fuel Pump Return)	3

Fig 2: Fuel Pump Control Module Connector

Courtesy of FORD MOTOR CO.

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

Fig 3: Battery Junction Box-A (BJB-A) Connector

Courtesy of FORD MOTOR CO.

Harness Side

Circuit	Pin
VPWR Fuel	25
FP (Fuel Pump)	24

Fig 4: Powertrain Control Module-B (PCM-B) Connector

Courtesy of FORD MOTOR CO.

Harness Side

Circuit	Pin
FP (Fuel Pump)	18
FPC (Fuel Pump Command)	19
FPM (Fuel Pump Monitor)	32

Fig 5: Powertrain Control Module-T (PCM-T) Connector

Courtesy of FORD MOTOR CO.

Harness Side

Circuit