Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Pinpoint Test Ab: Cold Start System: Introduction
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
This pinpoint test is intended to diagnose the following:
- cold start fuel pump
- cold start relay
- cold start valve
- fuel injector heaters
- fuel injector heater control module
- harness circuits: B+, CSM, CSRC, CSV, FIHC, FIHM, FIH1, FIH2, FIH3, GND, PWRGND, VBATT and VPWR
| Pin | Circuit |
|---|---|
| 1 | GND (Ground) |
| 2 | CSM (Cold Start Monitor) |
| Pin | Circuit |
|---|---|
| 5 | CSM (Cold Start Monitor) |
| 2 | CSRC (Cold Start Relay Control) |
| 1, 3 | B+ (Battery Positive Voltage) |
| Pin | Circuit |
|---|---|
| 2 | CSV (Cold Start Valve) |
| 1 | VPWR (Vehicle Power) |
| 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 |
|---|---|---|---|
| Fusion | A | 3 1 4 6 |
FIH4 FIH3 FIH2 FIH1 |
| All other vehicles | A | 4 1 3 |
FIH3 FIH2 FIH1 |
| Pin | Circuit |
|---|---|
| 5 | VPWR (Vehicle Power) |
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 |
| Fusion | 198 PIN | B28 | FIHM |
| Ranger | 128 PIN | E13 E41 |
FIHM FIHC |
| All other vehicles | 198 PIN | B28 E16 |
FIHM FIHC |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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