How do you wire a starter relay switch?
How do you wire a starter relay switch? How to Wire a Starter RelayMount the starter relay. Connect the starter motor lead to the switched output. Connect the smaller terminal or terminal post marked SIGNAL, SWITCH or IGN to the ignition switch. Connect the battery positive terminal to the other large terminal last, which may be marked BATTERY or BAT. Does a starter relay need to be grounded? It's operated by a coil energized by 12v from the ignition switch, so of course the coil has to be grounded ,usually thru the structure of the solenoid back to the car...