How do I know if my cooling fan switch is bad?

How do I know if my cooling fan switch is bad?

The best way to tell if your cooling switch is faulty is to listen to your engine while you drive. You know how your engine is supposed to sound, and if you notice that you don’t hear the fan as often as you normally do during your afternoon commute, you might have a failing switch.

How can I check a relay fuse?

The only tool required to check a relay is a multimeter. With the relay removed from the fuse box, the multimeter set to measure DC voltage and the switch in the cab activated, first check to see if there are 12 volts at the 85 position in the fuse box where the relay plugs in (or wherever the relay is located).

How is the radiator fan on a Chevy Cavalier controlled?

A radiator cooling fan on a Chevy Cavalier is controlled by the computer. Its circuit goes from the battery positive to the fuse. From the fuse it travels to two relays: the low-speed and the high-speed relay.

When does the cooling fan relay go on?

The cooling fan relay will be commanded ON when the following conditions are met: – The engine coolant temperature reaches 106°C (223°F) or more. – The A/C clutch requested. – The vehicle speed is less than 38 MPH. – The engine coolant temperature is 151°C (304°F) or more.

When is the p0480 Chevrolet cooling fan relay control circuit detected?

Most auto repairs shops charge between $75 and $150 per hour. When is the P0480 CHEVROLET code detected? The P0480 code is detected when the Powertrain Control Module (PCM) detects that the commanded state of the driver and the actual state of the control circuit do not match. P0480 CHEVROLET Possible Symptoms

When does the pcmcontrol turn on the cooling fan?

The PCMcontrols the cooling fan by grounding the cooling fan control circuit which turns ON the cooling fan relay. The cooling fan relay will be commanded ON when the following conditions are met: – The engine coolant temperature reaches 106°C (223°F) or more. – The A/C clutch requested. – The vehicle speed is less than 38 MPH.

A radiator cooling fan on a Chevy Cavalier is controlled by the computer. Its circuit goes from the battery positive to the fuse. From the fuse it travels to two relays: the low-speed and the high-speed relay.

How is the cooling fan relay in a car controlled?

The electric cooling fan is controlled by the Powertrain Control Module (PCM) through the cooling fan relay based on inputs from the following components: – The engine coolant temperature (ECT) sensor – The intake air temperature (IAT) sensor – The A/C selector switch – The A/C refrigerant pressure sensor – The vehicle speed sensor (VSS)

Why do I have a GM 3 relay fan?

I try to show people how they can diagnose, fix and repair things themselves, grow their own food and preserve and store it. I strive to do something everyday to become more self sufficient; to be closer to my food, spend more time with my family.

Most auto repairs shops charge between $75 and $150 per hour. When is the P0480 CHEVROLET code detected? The P0480 code is detected when the Powertrain Control Module (PCM) detects that the commanded state of the driver and the actual state of the control circuit do not match. P0480 CHEVROLET Possible Symptoms

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