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Wiring Diagram for the Radiator Fan

Model: (Various brands) Various
Part: Checks and maintenance

Video tutorial

Here we see a wiring diagram for the radiator fan, which varies slightly depending on the car model, but the basic principle is similar for most vehicles. The fan receives power from the battery through a dedicated fuse, and the circuit is controlled by one or two relays (for low/high speed).

The low speed is activated by the temperature sensor when the coolant reaches a certain threshold: the relay closes the circuit with a resistor in series to reduce the speed. The high speed is activated at higher temperatures (above 100°C) or when the air conditioning is on. The relay bypasses the resistor, powering the fan at full capacity.

The fan is connected to ground to complete the circuit.


Posted on 2 April 2026 by ScegliAuto


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How to Remove the Rear Seat of a Hyundai Tucson?

To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

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by ScegliAuto

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