PINPOINT TEST HE: Exhaust Gas Recirculation (EGR) Systems: Introduction

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator L. However, it is still accessible from the selected car via links, so may be relevant.

This pinpoint test is intended to diagnose the following:

differential pressure feedback exhaust gas recirculation (EGR) sensor (9J460)
EGR valve (9D460) (9D475)
EGR vacuum regulator solenoid (9J459)
orifice tube assembly (9D477)
differential pressure feedback EGR sensor pressure hoses
vacuum lines
harness circuits: VREF, DPFE, SIGRTN, EVR, VPWR, VREF and PWRGND
powertrain control module (PCM) (12A650)

Fig 1: Identifying Differential Pressure Feedback EGR Sensor Connector
Courtesy of FORD MOTOR CO.

Fig 2: Identifying EGR Vacuum Regulator Solenoid Connector

Courtesy of FORD MOTOR CO.

Powertrain Control Module (PCM) Connector

For PCM connector views or reference values, refer to REFERENCE VALUES .

POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PINS REFERENCE CHART

Connector	Pin	Circuit
170 PIN	B47 E63 E57 E58 E21	PWRGND EVR VREF SIGRTN DPFE