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Test Main Relay

Wiring/Fuses/Relays

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A check of the main relay (the primary electrical switch controlling power distribution in the vehicle) to confirm it energizes and de-energizes correctly. A failed main relay prevents the engine from starting or causes total power loss.

Estimated Cost

$45–$130🔒

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

Main Relay (Related) →