How much does it cost to fix P0480?

DIY repair typically costs $15–$250 for parts. Professional repair runs $150–$550 including parts and labor.

P0480

Powertrain

Moderate

Cooling Fan 1 Control Circuit Malfunction

Get Your FREE AI Diagnostic Report

Enter your vehicle for a personalized diagnosis for code P0480

The P0480 code indicates a malfunction in the control circuit for your vehicle's primary radiator cooling fan (fan 1). The cooling fan is essential for pulling air through the radiator to keep the engine at its proper operating temperature, especially when the vehicle is moving slowly or sitting still in traffic. Without a working cooling fan, your engine can overheat quickly.

This is a code you should take seriously. While you may be able to drive at highway speeds without the fan (because air flows through the radiator naturally at speed), stop-and-go driving, idling, or city driving without a functioning cooling fan can cause the engine to overheat rapidly. Overheating can lead to expensive damage including blown head gaskets, warped cylinder heads, and even complete engine failure.

Start diagnosis with the simplest possibilities: check the cooling fan fuse first (usually located in the under-hood fuse box), then swap or test the fan relay. If the fuse and relay are good, check whether the fan motor itself is getting power when it should be running. Relay and fuse replacements are quick and inexpensive. Fan motor replacement is moderately involved but doable for most DIYers. Until this is repaired, avoid heavy traffic and prolonged idling, and monitor your temperature gauge closely.

Severity

Moderate — Address SoonThis Week

Symptoms

•Engine temperature gauge reading higher than normal
•Engine overheating, especially in traffic or at idle
•Radiator cooling fan not turning on
•Air conditioning performance may be reduced
•Check Engine light is on

Likely Causes

Failed cooling fan relay30%

The relay that switches power to the cooling fan motor is a common failure point. When it fails, the fan won't receive power even when the PCM commands it on.

Burned-out cooling fan motor25%

The electric fan motor can wear out or burn out over time, especially if it's been running under high-load conditions or has seized bearings.

Wiring or connector fault in the fan circuit20%

Damaged, corroded, or loose wiring between the relay and the fan motor (or between the PCM and the relay) prevents proper operation.

Blown fuse in the cooling fan circuit15%

A blown fuse cuts power to the entire fan circuit. This can happen due to a momentary overload or a developing short in the fan motor.

PCM or fan control module failure10%

The PCM or a dedicated fan control module may not be sending the proper command signal to the fan relay, due to an internal electronic fault.