Pinpoint Test KG: Fuel Injector: Introduction

WARNING: TO PREVENT THE RISK OF HIGH-VOLTAGE SHOCK, ALWAYS FOLLOW PRECISELY ALL WARNINGS AND SERVICE INSTRUCTIONS, INCLUDING INSTRUCTIONS TO DEPOWER THE SYSTEM. THE HIGH-VOLTAGE HYBRID SYSTEM UTILIZES APPROXIMATELY 300 VOLTS DC, PROVIDED THROUGH HIGH-VOLTAGE CABLES TO ITS COMPONENTS AND MODULES. THE HIGH-VOLTAGE CABLES AND WIRING ARE IDENTIFIED BY ORANGE HARNESS TAPE OR ORANGE WIRE COVERING. ALL HIGH-VOLTAGE COMPONENTS ARE MARKED WITH HIGH-VOLTAGE WARNING LABELS WITH A HIGH-VOLTAGE SYMBOL. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR DEATH.

This pinpoint test is intended to diagnose the following:

fuel injector(s) (9F593)
harness circuits: IGN START/RUN and INJ 1 - 4
powertrain control module (PCM) (12A650)

Fig 1: Fuel Injector Connector

Courtesy of FORD MOTOR CO.

FUEL INJECTOR CONNECTOR PINS REFERENCE CHART

Pin	Circuit
1	INJ (Injector)
2	IGN START/RUN (Ignition START/RUN)

Fig 2: Powertrain Control Module (PCM) Connector

Courtesy of FORD MOTOR CO.

PCM CONNECTOR PINS REFERENCE CHART

Pin	Circuit
E1	INJ1 (Injector 1)
E2	INJ2 (Injector 2)
E3	INJ3 (Injector 3)
E4	INJ4 (Injector 4)