Radiator Fan Control Module & Fan Control Unit
If fan does not operate, check for open or short circuits in wiring between components and radiator fan control module or fan control unit. See appropriate RADIATOR FAN CONTROL MODULE TERMINAL IDENTIFICATION table or FAN CONTROL UNIT TERMINAL IDENTIFICATION table. See Fig 1
or Fig 2
. Also see appropriate wiring diagram. See Figure
. If all wiring and other components are okay, replace fan control unit or radiator fan control module .
RADIATOR FAN CONTROL MODULE TERMINAL IDENTIFICATION
| Terminal |
Wire Color |
Circuit |
| B1 |
Black |
Ground |
| B2 |
Blue/Yellow |
Fan Control Unit |
| B3 |
Blue/Red |
Condenser Fan Relay |
| B4 |
Yellow/Blue |
Ignition Voltage |
| B5 |
Green |
Condenser Fan Relay |
| B6 |
Black/Red |
Battery Voltage |
| B7 |
--- |
Not Used |
| B8 |
Orange |
Oil Temperature Switch |
Courtesy of AMERICAN HONDA MOTOR CO., INC. FAN CONTROL UNIT TERMINAL IDENTIFICATION
| Terminal |
Wire Color |
Circuit |
| A1 |
Blue/Green |
Coolant Temp. Switch |
| A2 |
Blue |
Radiator Fan Relay |
| A3 |
Light Blue |
A/C Pressure Switch |
| A4 |
Black |
Ground |
| A5 |
Green |
ECU |
| A6 |
Red/Blue |
A/C Pressure Switch |
| A7 |
Blue/White |
Coolant Temp. Switch |
| A8 |
--- |
Not Used |
| A9 |
Blue/Yellow |
Fan Control Module |
| A10 |
--- |
Not Used |
| A11 |
Blue/Black |
ECU |
| A12 |
Yellow/Black |
Ignition Voltage |
Courtesy of AMERICAN HONDA MOTOR CO., INC.