Headlight Wiring Diagram Relay. The BCM sees the voltage and provides power to the control coil on the headlight relay. Place the fuse holders immediately after the connection to 12 volts to protect all your wiring.
The main power from the battery feeding the fuse and relays should be a nice large gauge wire as indicated. Make sure the power is off at the breaker before you start and use a voltage tester to verify that wires andor electrical connections are completely deceased. The following diagrams show some common relay wiring schemes that use 4 pin ISO mini relays.
Headlight Relay Wiring Diagram The above circuit is a way to use existing headlight wiring to control 2 relays that can be placed close to the lights.
3 Prong Headlight Wiring Diagram Wiring Schematic Diagram 103. That is kind of cryptic isnt it. Headlight Car Wiring Diagram Headlights- One Side Low Beam Other Side High Beam Credit. The answer is yes.