Aug 19, 2021Start with taking both of the positive wires from the fans and connect them to the yellow wires on each relay. You will then need to run switched power (usually from your ignition switch, but modern replacement wiring harnesses usually have a fused fan relay trigger wire) to the blue wires on the relays. Next, both of the black wires from the Related searches for car electric fan wiring diagram schematic 12v cooling fan relay diagramelectric cooling fan wiring diagramauto electric fan wiring diagramwiring diagram electric fan relaycooling fan wiring diagram autoautomotive fan relay wiring diagramelectric fan wiring schematicelectric radiator fan wiring diagram
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