Car Cooling Fan Control Circuit

During the install christian shot.

Car cooling fan control circuit.

The vehicles ecu has tried to control the cooling fan 1 and it has failed to operate or a fault was detected. This will be the wire that connects your switch to your fan power wire. The electric cooling fan uses a direct current dc electric motor with a thermo switch module or computer control to turn it on or off depending on coolant temperature or ac operating condition. The engine may also overheat if fan speed fails to increase when additional cooling is needed.

Now take the power wire from your fan and connect it to the wire that is going through the firewall. This one turns on the fan when the circuit is closed. Or a failure of the fan relay or control circuit is bad news. A constant power supply from the battery is present on a terminal in each of the relays.

What causes the p0480 code. The fan relays are nothing but a remote light switch. The ecu then triggers a check engine light to illuminate on the dashboard. P0480 means that the cooling fan 1 control circuit has a malfunction.

Engine cooling fan issues. The temperature controlled switch is designed to turn the fan on when coolant temperatures reach 195 degrees and turn off the fan when temps drop to 185 degrees. Get the 10 gauge wire and place it through the hole in your fire wall. So now we have a wire that goes through the engine bay to the cabin of your car.

A switched terminal will be hot only when the key is on. Because it can allow the engine to overheat. Which may not be fast enough to prevent overheating. The fan as well as other apparatus draws too much amperage to be safe in the cockpit so it s kept under the hood.

The fan may work but it only runs at low speed.