Pinpoint Test KF: Fan Control Relays: Introduction
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2018 Lincoln Navigator, 2018 Lincoln MKZ, 2018 Lincoln MKX, 2018 Lincoln MKT, and 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
This pinpoint test is intended to diagnose the following:
- CAC fan relay
- fan control (FC1, FC2, FC3, FC4, FC5) relays
- harness circuits: CACCF, FGC, LFC, MFC, HFC and VPWR
- PCM (12A650)
Although the PCM output circuits are called LFC, MFC, and HFC, cooling fan operation is controlled by a combination of these outputs.
Cooling Fan State
| PCM Output | Low Speed | Medium Speed | High Speed | |
|---|---|---|---|---|
| Vehicles With 5 Fan Control Relays | LFC | ON | ON | ON |
| MFC | OFF | ON | ON | |
| HFC | OFF | OFF | ON | |
| All Others | LFC | ON | N/A | ON |
| HFC | OFF | N/A | ON |
| Pin | Circuit |
|---|---|
| 47 | GND (Ground) |
| 2, 26 | FANPWR (Fan Power) |
| Pin | Circuit |
|---|---|
| 6 | HFC (High Fan Control) |
| 10 | LFC (Low Fan Control) |
| 19 | CACCF (Charge Air Cooler Cooling Fan) |
| Pin | Circuit |
|---|---|
| 47 | FANPWR (Fan Power) |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Ford GT | A | 5 1 3 2 |
FANPWR CACCF B+ VPWR |
| All other vehicles | A | 5 2 3 1 |
FANPWR CACCF B+ VPWR |
| Pin | Circuit |
|---|---|
| 2 | GND (Ground) |
| 1 | FANPWR (Fan Power) |
| Pin | Circuit |
|---|---|
| 2 | GND (Ground) |
| 1 | FANPWR (Fan Power) |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| EcoSport, Fiesta, Fusion, KA |
A | 1 2 |
GND FANPWR |
| Ranger | B | 1 3 2 |
GND FANPWR FANPWR |
| All other vehicles | A | 2 1 |
FC FANPWR |
| Pin | Circuit |
|---|---|
| 2 | GND (Ground) |
| 1 | FANPWR (Fan Power) |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Continental, EcoSport, Edge, Explorer, Fiesta, Flex, KA, MKT, MKX |
A | 5 2 3 1 |
FANPWR LFC B+ VPWR |
| Escape/Kuga, Focus, MKC, Transit |
B | 5 2 3 1 |
FANPWR LFC B+ VPWR |
| Fusion, MKZ, Mustang, Taurus |
A | 5 1 3 2 |
FANPWR LFC B+ VPWR |
| Ranger | A | 3 1 2, 5 |
FANPWR LFC B+ |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Continental, Edge, Explorer |
A | 5 3 4 2 1 |
GND FGC FANPWR HFC VPWR |
| EcoSport, Escape/Kuga 1.5L, Escape/Kuga 2.0L With 3 Fan Relays, Fiesta |
B | 5 2 1 |
FANPWR HFC VPWR |
| Escape/Kuga 2.0L With 5 Fan Relays | B | 4 5 2 1 |
FANRSTR1 FANPWR MFC VPWR |
| Flex, MKC With 3 Fan Relays, MKT |
B | 5 3 4 2 1 |
GND FGC FANPWR HFC VPWR |
| Focus With 5 Fan Relays | B | 4 5 2 1, 3 |
FANRSTR1 FANPWR MFC VPWR |
| Fusion, MKZ, Mustang, Taurus |
A | 5 3 4 1 2 |
GND FGC FANPWR HFC VPWR |
| MKC With 5 Fan Relays | B | 4 3 5 2 1 |
FANRSTR1 FGC FANPWR MFC VPWR |
| Ranger | A | 5 2 |
FANPWR HFC |
| Transit | B | 4 3 2 1 |
FGC FANPWR HFC VPWR |
NOTE:
The HFC circuit may be wired to the FC3 and FC5 relays. Refer to the appropriate Wiring Diagrams article for additional information.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Continental, MKX |
A | 5 2 3 1 |
FANPWR HFC B+ VPWR |
| Edge, Mustang |
A | 3 1 5 2 |
FANPWR HFC B+ VPWR |
| Escape/Kuga 1.5L, Escape/Kuga 2.0L With 3 Fan Relays, Focus With 5 Fan Relays, MKC With 5 Fan Relays |
A | 5 3 4 2 1 |
GND FGC FANPWR HFC VPWR |
| Escape/Kuga 2.0L With 5 Fan Relays | A | 5 3 4 2 1 |
GND FGC FANPWR MFC VPWR |
| Explorer, Flex, MKC With 3 Fan Relays, MKT |
B | 5 2 3 1 |
FANPWR HFC B+ VPWR |
| Fusion | A | 3 2 5 1 |
FANPWR HFC B+ VPWR |
| MKZ | A | 3 2 5 1 |
GND HFC B+ VPWR |
| Taurus | A | 5 3 4 1 2 |
GND FGC FANPWR HFC VPWR |
| Transit | B | 5 3 2 1 |
GND FGC HFC VPWR |
NOTE:
The MFC circuit may be wired to the FC2 and FC4 relays. Refer to the appropriate Wiring Diagrams article for additional information.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Escape/Kuga | A | 5 4 1 2 |
FANPWR FANRSTR2 VPWR HFC |
| Focus 2.3L | A | 5 4 2 1, 3 |
FANPWR FANRSTR2 MFC VPWR |
| MKC | A | 5 4 2 1 |
FANPWR FANRSTR2 MFC VPWR |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Escape/Kuga | A | 2 1 |
HFC VPWR |
| Focus 2.3L | A | 2 3 1, 5 |
HFC B+ VPWR |
| MKC | A | 2 3 1 |
HFC B+ VPWR |
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES .
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Continental 3.7L, Edge 3.5L, Explorer TiVCT 3.5L, Explorer 3.7L, Flex TiVCT 3.5L, MKT 3.7L, MKX 3.7L, Mustang 5.2L, Taurus TiVCT 3.5L, Taurus 3.7L, Transit 3.7L |
198 PIN | B10 B17 |
HFC LFC |
| EcoSport 1.0L Automatic Transmission | 198 PIN | B4 B23 E19 |
HFC LFC CACCF |
| EcoSport 1.0L Manual Transmission | 198 PIN | B3 B42 B59 |
HFC LFC CACCF |
| EcoSport 1.5L Automatic Transmission, Fusion 2.5L |
198 PIN | B67 B66 |
HFC LFC |
| EcoSport 1.5L Manual Transmission | 112 PIN | B27 B26 |
HFC LFC |
| Escape/Kuga 1.5L | 198 PIN | B7 B32 |
HFC LFC |
| Escape/Kuga 2.0L With 3 Fan Relays | 198 PIN | B32 B6 |
HFC LFC |
| Escape/Kuga 2.0L With 5 Fan Relays | 198 PIN | B32 B8 B6 |
MFC HFC LFC |
| Expedition, F-150 3.5L, Navigator |
198 PIN | B80 B41 B43 |
HFC LFC CACCF |
| F-150 2.7L, F-150 3.3L, F-150 5.0L, Mustang 5.0L |
306 PIN | B89 B59 |
HFC LFC |
| Fiesta 1.0L | 198 PIN | B3 B42 |
HFC LFC |
| Fiesta 1.6L | 128 PIN | B13 | LFC |
| Focus | 198 PIN | B78 B4 B23 |
MFC HFC LFC |
| Ford GT | 198 PIN | B78 | CACCF |
| KA | 128 PIN | E31 | LFC |
| MKC | 198 PIN | B8 B7 B6 |
MFC HFC LFC |
| Mustang 2.3L | 198 PIN | B2 B2 |
HFC LFC |
| Ranger | 128 PIN | E29 B13 |
HFC LFC |
| All other vehicles | 198 PIN | B4 B23 |
HFC LFC |