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Test Auxiliary Cooling Fan Relay

Cooling System

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A diagnostic test of the auxiliary cooling fan relay (the switch that turns on the engine cooling fan when needed) to verify it activates and deactivates correctly. A stuck relay can cause the fan to run constantly, draining power, or fail to run when the

Estimated Cost

$60–$150🔒

Parts + labor, based on the parts this service typically requires. Not specific to your vehicle or region — this spans all vehicles, all regions, and all part grades, so treat it as a rough ballpark rather than a quote.

Parts Involved

Auxiliary Cooling Fan Relay (Related) →