Pinpoint Tests O: Water In Fuel (WIF) Sensor: Introduction
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Ford Transit-350 HD, 2018 Ford Transit-350, 2018 Ford Transit-250, 2018 Ford Transit-150, and 2018 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:
- fuel system contamination
- harness circuits: GND, SIGRTN, WIF and VPWR
- WIF sensor (9T321)
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| F-150 | A | 1 2 3 4 |
SIGRTN WIF GND VPWR |
| F-Series Super Duty | B | 2 1 3 |
SIGRTN WIF GND |
| Transit | C | 2 1 |
SIGRTN WIF |
| All other vehicles | D | 1 2 |
SIGRTN WIF |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Transit | A | 35 31 |
SIGRTN WIF |
| All other vehicles | B | 44 24 |
SIGRTN WIF |