Pinpoint Tests Ab: Cold Start System: Introduction
WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2021 Lincoln Navigator, 2021 Lincoln Nautilus, 2021 Lincoln Corsair, 2021 Lincoln Aviator, and 2021 Ford Transit-350 HD. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
REFER TO THE FUEL SYSTEM WARNING INFORMATION AT THE BEGINNING OF PINPOINT TEST HC. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
This pinpoint test is intended to diagnose the following:
- fuel injector heaters
- fuel injector heater control module
- harness circuits: FIHC, FIHM, FIH1, FIH2, FIH3, GND, PWRGND, VBATT and VPWR
| Pin | Circuit |
|---|---|
| 2 | GND (Ground) |
| 1 | FIH (Fuel Injector Heater) |
| Pin | Circuit |
|---|---|
| 1 | FIHM (Fuel Injection Heater Monitor) |
| 2 | FIHC (Fuel Injection Heater Control) |
| 3 | PWRGND (Power Ground) |
| 4 | VPWR (Vehicle Power) |
| 5 | VBATT (Battery Voltage) |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| A | 3 1 4 6 |
FIH4 FIH3 FIH2 FIH1 |
|
| All other vehicles | A | 4 1 3 |
FIH3 FIH2 FIH1 |
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to Reference Values.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| EcoSport 1.5L Manual Transmission | 112 PIN | E12 E46 |
FIHM FIHC |
| KA 1.0L | 128 PIN | T13 E33 |
FIHM FIHC |
| KA 1.5L | 198 PIN | E16 | FIHC |
| Ranger | 128 PIN | E13 E41 |
FIHM FIHC |
| All other vehicles | 198 PIN | B28 E16 |
FIHM FIHC |