How do I fix the cooling fan 1 control circuit malfunction?

How do I fix the cooling fan 1 control circuit malfunction?

What repairs can fix the P0480 code?

1. Replacing the VSS sensor.
2. Replacing the engine coolant temp sensor.
3. Repairing or replacing of the fan wiring harness.
4. Replacing cooling fan 1.
5. Repairing electrical connection issues.
6. Replacing AC pressure switch.
7. Replacing the fan control relay.

What is a fan control circuit?

Abstract: A linear circuit measures temperature and controls the speed of a cooling fan by generating a variable supply voltage for the fan. Fan-control circuits range from simple switches that boost the fan speed at a certain temperature, to digitally controlled fans with continuously-variable speed.

What is a fan 2 control circuit?

P0481 DODGE Cooling Fan 2 Control Circuit – The Powertrain Control Module (PCM) controls the cooling fan 2 (high speed) relay by grounding the (N112) high rad fan relay control circuit when it is determined that high speed fan operation is required.

What does a fan relay do?

The cooling fan relay essentially functions as the switch for the engine’s cooling fans, and is therefore an important electrical component of the vehicle’s cooling system. They will be able to look over your vehicle and replace your cooling fan relay if necessary.

Where is the blower motor relay?

The blower relay is located near the front of the fuse block and is labeled “Blower.” Inspect the center of the relay. If the metal rod inside is broken, the relay will need to be replaced.

Where is the fan relay?

The cooling fan control module in your vehicle is located at the front left of the engine compartment next to the radiator.

What is an indoor fan relay?

In a blower motor, the relay supplies the power that allows the fans to circulate warmed air. Essentially an on/off switch, the blower motor relay’s reactions start and end the heating process in HVAC systems by controlling the flow of current between the power source and the motor.

Why AC fan stops working after a while?

Bad Capacitor One potential reason for your AC fan to stop working is a bad capacitor. The capacitor is a small, cylindrical device that provides energy to your AC unit’s motor. It is responsible for starting up the AC unit and providing additional power as needed to keep the unit running. AC makes humming sound.

Why is my fan not blowing air in my car?

If the heater isn’t blowing hot air at you when you turn the system on, the blower fan might have a problem. Either it’s not getting electrical power or, more likely, the motor itself has simply burned out. A blower motor in an older vehicle is likely to burn out over time, and may need replacement.