Pinpoint Test P: Misfire/Injector Driver Circuit Operation: Introduction

NOTE: Inspect the fuel injector control module (FICM) harness for damage, chafing and correct routing within the engine compartment and around engine components.

This pinpoint test is intended to diagnose the following:

fuel injector
harness circuits: fuel injector close coil, power and ground and fuel injector open coil, power and ground
FICM (12B559)
powertrain control module (PCM)

Fig 1: Fuel Injector Control Module-A (FICM-A) Connector

Courtesy of FORD MOTOR CO.

Fig 2: Fuel Injector Control Module-B (FICM-B) Connector

Courtesy of FORD MOTOR CO.

Fig 3: Fuel Injector Connector

Courtesy of FORD MOTOR CO.