Pinpoint Test 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)
fuel pump relay
harness circuits: B+ and FPC
PCM (12A650)

Fig 1: Identifying Fuel Pump (FP) Connector

Courtesy of FORD MOTOR CO.

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

Fig 2: Identifying Fuel Pump (FP) Relay Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
2	FPC (Fuel Pump Command)
1, 3	B+ (Battery Positive Voltage)
5	FPPWR-A (Fuel Pump Power - A)

Fig 3: Identifying Powertrain Control Module-B (PCM-B) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
19	FPC (Fuel Pump Command)