Pinpoint Test Ab: Cold Start System: Introduction

WARNING: Refer to the fuel system WARNING information at the beginning of PINPOINT TEST HC. Failure to follow these instructions may result in personal injury.

This pinpoint test is intended to diagnose the following:

fuel injector heaters
fuel injector heater control module
harness circuits: FIHC, FIHM, FIH1, FIH2, FIH3, GND, PWRGND, VBATT and VPWR

Fig 1: Fuel Injector Heater Assembly Connector

Courtesy of FORD MOTOR CO.

Harness Side

Circuit	Pin
FIH (Fuel Injector Heater)	1
GND (Ground)	2

Fig 2: Fuel Injector Heater Control-A Module Connector

Courtesy of FORD MOTOR CO.

Harness Side

Circuit	Pin
VBATT (Battery Voltage)	5
VPWR (Vehicle Power)	4
PWRGND (Power Ground)	3
FIHC (Fuel Injection Heater Control)	2
FIHM (Fuel Injection Heater Monitor)	1

Fig 3: Fuel Injector Heater Control-B Module Connector

Courtesy of FORD MOTOR CO.

Harness Side

Circuit	Pin
FIH1 (Fuel Injector Heater 1)	3
FIH2 (Fuel Injector Heater 2)	1
FIH3 (Fuel Injector Heater 3)	4

Fig 4: Powertrain Control Module (PCM) Connector - For PCM Connector Views

Courtesy of FORD MOTOR CO.

Harness Side

Circuit