PINPOINT TEST HE: Exhaust Gas Recirculation (EGR) Systems: Introduction
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)
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Vehicles equipped with a tube mounted differential pressure feedback EGR sensor | A | 3 2 1 |
DPFE SIGRTN VREF |
| All other vehicles | B | 1 2 3 |
DPFE SIGRTN VREF |
| Pin | Circuit |
|---|---|
| 2 | EVR (EGR Vacuum Regulator) |
| 1 | VPWR (Vehicle Power) |
For PCM connector views or reference values, refer to the REFERENCE VALUES article.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Escape/Mariner | 150 (50-50-50) Pin | B47 E27 E40 E41 E44 |
PWRGND EVR VREF SIGRTN DPFE |
| Ranger | 170 Pin | B47 E63 E57 E58 E21 |
PWRGND EVR VREF SIGRTN DPFE |