12v Fog Light Wiring Diagram

A three way connection must be made joining the second wire from each of the fog lights to the red wire going to the relay terminal 87.

12v fog light wiring diagram. Fog lights off with high beams on relay wiring diagram. The fog lights each have two wires one for ground and one for the 12v power. This hook up does away with the headlight lamp connection. 12v universal wiring harness kit relay fuse switch.

Use wire ties to secure any slack portion of the 12 volt connection or wire harness in the engine compartment away from moving parts or excessive heat. When the coil of the relay is energized 12v from the high beam switch to terminal 86 ground on terminal 85 the normally closed contacts open interrupting 12v to the fog lights. One of these wires from each fog light has already been connected to ground. When the coil of the relay is energized 12v from the high beam switch to terminal 86 ground on terminal 85 the normally closed contacts open interrupting 12v to the fog.

It includes instructions and diagrams for various varieties of wiring methods along with other things like lights home windows and so on. Green wire connects directly to the battery to power switch relay. Power 12v to the fogs lights passes through the normally closed contacts of the relay terminals 30 and 87a. Alternative fog or driving light schematic.