PINPOINT TEST HH: Exhaust Gas Recirculation System Module (ESM): Introduction
WARNING: This page is about a different variant/trim than selected.
This pinpoint test is intended to diagnose the following:
- ESM (9Y456)
- orifice tube assembly (9D477)
- differential pressure feedback exhaust gas recirculation (EGR) sensor pressure hoses
- vacuum lines
- harness circuits: DPFE, SIGRTN, EVR, VPWR and VREF
- powertrain control module (PCM) (12A650)
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES article.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| E-Series | 190-PIN | E21 | EVR |
| E64 | SIGRTN | ||
| E63 | VREF | ||
| E64 | SIGRTN | ||
| E48 | DPFE | ||
| Mustang | 190-PIN | E63 | EVR |
| E32 | SIGRTN | ||
| B40, E20 | VREF | ||
| E32 | SIGRTN | ||
| E21 | DPFE |