Fan Control Module/Unit

2004 Acura 3.5RLSECTION Fan Control Module/Unit
WARNING: This page is about a different car, the 2001 Acura MDX, 2001 Acura Integra, 2001 Acura 3.5RL, 2001 Acura 3.2TL, and 2001 Acura 3.2CL. However, it is still accessible from the selected car via links, so may be relevant.

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 DIAGRAMSΒ  . 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 DIAGRAMSΒ  .
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 DIAGRAMSΒ  .
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 DIAGRAMSΒ  .
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 DIAGRAMSΒ  .
Fig 2: Identifying Radiator Fan Control Module Connector Terminals (3.5RL)
G00040690Courtesy of AMERICAN HONDA MOTOR CO., INC.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.