How to Test a Car Relay using a Multimeter: A 17-Year Electromechanic’s Guide
It started with a no-start situation. The ignition clicked, but nothing happened. After ruling out the battery and starter, I pulled the fuel pump relay. Sure enough—it had failed. That tiny black cube, no bigger than a sugar cube, had sidelined a whole vehicle. Seventeen years under the hood taught me this: that little black […]
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