PINPOINT TEST B: Powertrain Control Module (PCM) Power Relay: Introduction: Notes
This pinpoint test is intended to diagnose the following:
- harness circuits: B+, INJPWRM, ISP-R, PCMRC, and VPWR
- PCM power relay (12A646)
- PCM (12A650)
| Pin | Circuit |
|---|---|
| 2 | VPWR (Vehicle Power) |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Edge, Explorer, Fusion, MKX, MKZ, Taurus 3.5L, Taurus 3.7L |
A | 5 1 2, 3 |
VPWR PCMRC B+ |
| Escape | B | 5 2 1, 3 |
VPWR PCMRC B+ |
| F-650/F-750 | B | 87 85 30, 86 |
VPWR PCMRC B+ |
| F-Series Super Duty, Motorhome/Stripped Chassis/Step Van |
B | 5 1 2, 3 |
VPWR PCMRC B+ |
| Focus, Transit Connect |
C | 5 2 1, 3 |
VPWR PCMRC B+ |
| Mustang | B | 87 86 30, 85 |
VPWR PCMRC B+ |
| All other vehicles | A | 5 2 1, 3 |
VPWR PCMRC B+ |