How to test radiator fan on Chevy Impala?

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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)

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.

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

How to remove a fan control switch on a Chevy Impala?

Pull the bezel off of the dash. Pull the ashtray out of the dashboard by depressing the button on the inside lip of the ashtray. Unscrew the panel around the ashtray with the Phillips screwdriver and the 1/4-inch ratchet and socket. Pull the panel straight back off of the dashboard.

How to tell if your Chevy Impala a / C blower motor is failing?

Signs of a failing A/C motor include flow issues while operating the air conditioner or heater at low speeds and sudden air stoppage. Choose AutoZone for your Chevy Impala A/C blower motor and take advantage of other services such as free battery charging and engine diagnostic testing during your next in-store visit.