mk4 golf fan module

Golf MK4 Fan Wiring Diagram | Fix Installing, Troubleshooting

This article is created to help people who want to understand or fix their Volkswagen Golf MK4 fan. We have a detailed Golf MK4 Fan Wiring Diagram with step-by-step installation instructions for it. If you want to troubleshoot your Golf MK4 fan, you should take a look at our Golf MK4 Fan wiring diagram and installation instructions. What’s more, we have also included some tips to help you troubleshoot and repair the fan.

The Golf MK4 Fan Wiring Diagram

If you have no idea how to install your Golf MK4 fan or are having issues with it, you should take a look at our step-by-step installation instructions. The installation instructions along with the Golf MK4 Fan Wiring Diagram will help you to understand how to install or troubleshoot your Golf MK4 fan.

golf mk4 fan wiring diagram

Installation Instructions for the Golf MK4 Fan

The Volkswagen Golf MK4 fan is powered by a 24-volt, 12-volt, or 5-volt DC power supply. It is also controlled by a PWM signal from a 12-volt DC signal. This PWM signal is generated by a low-side driver circuit. It is important to have the right voltage, which depends on the type of Golf MK4 fan you have.

inside the mk4 fan

1. Start by turning off the power to your Golf MK4 fan.

2. Remove the Golf MK4 fan cover.

3. Check that the fan blade is properly connected to the fan motor.

4. Connect the black and red wires from the fan motor to the black and red wires from the fan blade.

5. Connect the black and yellow wires from the fan blade to the black and yellow wires from the fan motor.

6. Connect the white and blue wires from the fan motor to the white and blue wires from the fan blade.

7. Connect the black and yellow wires from the fan motor to the black and yellow wires from the power supply.

In conclusion, the installation of the Golf MK4 fan is now complete.

How to Check the Golf MK4 Fan Wiring

There are a number of ways to check the Volkswagen Golf MK4 fan wiring. You can use a multimeter to check the voltage from the power supply.

As an illustration, here are some of the ways you can check the Golf MK4 fan wiring.

1. Using a multimeter, check the voltage from the power supply. The voltage should be 24 volts.

2. Using a multimeter, check the voltage from the fan motor. The voltage should be 12 volts.

3. Using a multimeter, check the voltage from the fan blade. The voltage should be 12 volts.

4. Using a multimeter, check the voltage from the power supply. The voltage should be 5 volts.

5. Using a multimeter, check the voltage from the fan motor. The voltage should be 5 volts.

The Fan Control Module

The fans are turned on and off via a fan control module. It receives signals from various places, including the air conditioner, and controls two relays for low and high speed.

The relays are embedded into the controller and are not replaceable. There are two multi-plugs connecting to the controller. The 14 pin plug contains the signal wiring. The 4 pin plug connects straight to the relays inside of the controller.

If you own a Club car of 36v, check out our article on 36v Club Car Forward Reverse Switch Wiring Diagram

Solution

This solution works by driving fans in your computer from a PWM speed controller. The speed controller is powered from the fan’s low speed output.

When the fan controller turns the low-speed output on, the fans start spinning and when it turns the high speed output on, they spin faster.

Power electronics are the devices used to handle the electrical load of motors in order to make them function at optimum efficiency. They manage the current, voltage, and frequency of the power source in order to increase the motor’s performance.

Simple circuit diagram

If you’ve ever had a fan fail to run, you know it can be frustrating to work around. It may seem like something minor, but it can be a big problem, especially if you’re not used to DIY (Do-it-Yourself) type electronics. A standard fan configuration needs only three connections to function and that includes a PWM controller, which is the black box in the center of the diagram above.

PWM Controller Design

The Volkswagen Golf MK4’s speed controller is a fairly basic tool that provides a means of varying the rate at which a motor spins at a given current or voltage. It allows a range of frequencies and is typically used for motors with a variable torque range, such as stepper motors.

The unit was able to keep the fans running and keep the air conditioner happy while drawing only a tiny amount of power. In fact, the unit was able to draw 6 amps for the two fans.

Conclusion

I have tried to explain everything about the fan of the Volkswagen MK4 golf. I have also included the Golf MK4 Fan Wiring Diagram to help you understand how it works and how to troubleshoot it yourself. If you have any issues regarding the fan module of the mk4, let me know in the comments and I will try my best to help you.