Pinpoint Tests AJ: Powertrain Control Module (PCM) Power Relay: Introduction
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2019 Ford Transit-350 HD, 2019 Ford Transit-350, 2019 Ford Transit-250, 2019 Ford Transit-150, and 2019 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.
This pinpoint test is intended to diagnose the following:
- harness circuits: B+, ISP-R, PCMRC, VPWR and PWRGND
- PCM power relay (12A646)
- PCM (12A650)
Harness Side
| Circuit | Pin |
|---|---|
| B+ (Battery Positive Voltage) | 3 |
| B+ (Battery Positive Voltage) | 1 |
| PCMRC (PCM Relay Control) | 2 |
| VPWR (Vehicle Power) | 5 |
Harness Side
| Circuit | Pin |
|---|---|
| PCMRC (PCM Relay Control) | 38 |
| ISP-R (Ignition Switch Position Run) | 42 |
| VPWR (Vehicle Power) | 69 |
| VPWR (Vehicle Power) | 68 |
| VPWR (Vehicle Power) | 67 |
| PWRGND (Power Ground) | 70 |
| PWRGND (Power Ground) | 71 |
| PWRGND (Power Ground) | 72 |
| PWRGND (Power Ground) | 73 |
| PWRGND (Power Ground) | 74 |