Relay Board Wiring Diagrams. The relay board takes 12V from the vehicle and passes it to the MegaSquirt EFI controller but it also handles fuel pump relay and other wiring needed from the engine side. A wiring diagram may include the wirings of a vehicle.
By Inessa Vanags On February 23 2021 In Wiring Diagram 237 views 12 Volt Relay Board Circuit 448 5 123 votes Top Suggestions 12 Volt Relay Board Circuit. 224a88 12 volt relay wiring diagrams fog lamp wiring library ec 8012 illuminated switch wiring diagram with relay free. Relay Board Diagram 1973.
Electrical Diagram 1973 Part II Diagram Legend.