PINPOINT TEST A: Powertrain Control Module (PCM) Power Relay: Introduction
This pinpoint test is intended to diagnose the following:
- harness circuits: B+, IGN START/RUN, VPWR, GND and PWRGND
- PCM power relay
- PCM
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| E-Series | A | 87 86 85 30 |
VPWR GND IGN START/RUN B+ |
| F-Super Duty | A | 87 85 86 30 |
VPWR GND IGN START/RUN B+ |
| Pin | Circuit |
|---|---|
| B10, B11, B23 | PWRGND (Power Ground) |
| B34, B46 | VPWR (Vehicle Power) |