Pinpoint Test He: Exhaust Gas RECIRCULATION (EGR) Systems: Introduction

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This pinpoint test is intended to diagnose the following:

differential pressure feedback exhaust gas recirculation (EGR) sensor (9J460)
differential pressure feedback EGR sensor pressure hoses
orifice tube assembly (9D477)
EGR cooler
harness circuits: DPFE, SIGRTN and VREF
PCM (12A650)

Fig 1: Powertrain Control Module (PCM) Connector - For PCM Connector Views

Courtesy of FORD MOTOR CO.

Harness Side

Circuit