Pinpoint Test KN: Variable Speed Electric Cooling Fan Motor: Introduction: Notes
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 Lincoln Navigator, 2015 Lincoln MKZ, 2015 Lincoln MKX, 2015 Lincoln MKT, and 2015 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
This pinpoint test is intended to diagnose the following:
- cooling fan (CF) module (8B658)
- cooling fan assembly (8C607)
- harness circuits: FCV, FANPWR and GND
- powertrain control module (PCM) (12A650)
FCV DUTY CYCLE OUTPUT FROM PCM DESCRIPTION (NEGATIVE DUTY CYCLE)
| FCV Duty Cycle Command (Negative Duty Cycle) | Cooling Fan Response And Speed |
|---|---|
| Less Than 10% | Fan OFF, Controller Inactive |
| 10% - 90% | Linear Speed Increase |
| Greater Than 90% But Less Than 95% | 100% |
| Greater Than 95% But Less Than 100% | Fan OFF |
| Pin | Circuit |
|---|---|
| 4 | FCV (Fan Control Variable) |
| 2 | GND (Ground) |
| 1 | FANPWR (Fan Power) |
| Pin | Circuit |
|---|---|
| 1 | GND (Ground) |
| 2 | FANPWR (Fan Power) |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Fiesta | A | 5 2 1 3 |
FANPWR GND VPWR B+ |
| All other vehicles | B | 5 2 1 3 |
FANPWR GND VPWR B+ |