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Fan Control Module/Unit

If fan does not operate, check for open or short circuits in wiring between components and fan control module or fan control unit. See appropriate FAN CONTROL MODULE TERMINALS or FAN CONTROL UNIT TERMINALS table. Also see WIRING DIAGRAMS  . If all wiring and other components are okay, replace fan control unit.

FAN CONTROL MODULE TERMINALS (MDX)

Terminal No. (1) Wire Color(2) Circuit
1 Yellow Radiator Fan Relay (+)
2 Black/Yellow Power Supply (Ign. On)
3 Yellow/White Condenser Fan Relay (+)
4 Black Ground
5 White/Green Engine Coolant Temp. Sw.
6 White/Yellow Power Supply (Ign. On)
7 Black/Yellow Power Supply (Ign. On)
8 Green Radiator Fan Relay (-)
(1) See Fig 1 .

(2) See WIRING DIAGRAMS  .
FAN CONTROL MODULE TERMINALS (3.2CL)

Terminal No. (1) Wire Color(2) Circuit
1 Yellow Radiator Fan Relay (+)
2 Black/Yellow Power Supply (Ign. On)
3 Yellow/White Condenser Fan Relay (+)
4 Black Ground
5 White/Green Engine Coolant Temp. Sw.
6 White/Red Power Supply (Ign. On)
7 Black/Yellow Power Supply (Ign. On)
8 Green Radiator Fan Relay (-)
(1) See Fig 1 .
(2) See WIRING DIAGRAMS  .
FAN CONTROL MODULE TERMINALS (3.2TL)

Terminal No. (1) Wire Color(2) Circuit
1 Yellow Radiator Fan Relay (+)
2 Black/Yellow Power Supply (Ign. On)
3 Yellow/White Condenser Fan Relay (+)
4 Black Ground
5 White/Green Engine Coolant Temp. Sw.
6 White Power Supply (Ign. On)
7 Black/Yellow Power Supply (Ign. On)
8 Green Condenser & Radiator Fan Relay (-)
(1) See Fig 1 .
(2) See WIRING DIAGRAMS  .
Fig 1: Identifying Radiator Fan Control Module Connector Terminals (3.2TL Shown; MDX & 3.2CL Are Similar)
G00008367Courtesy of AMERICAN HONDA MOTOR CO., INC.
FAN CONTROL UNIT TERMINALS (3.5RL)

Terminal No.(1) Wire Color(2) Circuit
1 Green/Red A/C Pressure Sw.
2 ..... Not Used
3 Black Ground
4 Red/White A/C Pressure Sw.
5 Lt. Green/Black Radiator Fan Relay (-)
6 Green/Black Fan Control Sensor (-)
7 Black/Yellow Power Supply (Ign. On)
8 Pink PCM/ECM
10 Blue/Orange Condenser Fan Relay (-)
11 ..... Not Used
12 Blue/Green Fan Control Sensor (+)
(1) See Fig 2
(2) See WIRING DIAGRAMS  .
Fig 2: Identifying Radiator Fan Control Module Connector Terminals (3.5RL)
G00040690Courtesy of AMERICAN HONDA MOTOR CO., INC.
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