montypower
Adventure Time!
Modern CAN Bus wired vehicles make simple wiring projects complicated or seemingly impossible. Simple things like turning auxiliary lights on and off with the factory headlight high beams. On older vehicles you could tap the factory headlight high beam wire into a relay for powering auxiliary lights. Simple. Easy.
Thankfully there is a workaround if you have factory fog lights! You see… factory fog lights are configured to “turn off” when the high beams are “turned on”. So essentially, by using the power feed to the fog lights to reverse trigger a relay you can turn auxiliary lights on and off with the factory high beam switch.
This wiring mythology allows the auxiliary lights to be turned on / off by the switch (like normal). Or controlled by the headlight high beam switch simply by turning on the factory fog lights with the auxiliary lights turned on.
Ford Owner's Manual Download (FREE)
https://www.ford.com/support/owner-manuals/
Parts Shown in Video:
SPV Parts Relay: https://specialtyperformanceparts.com/search?type=product&q=RLY-ADPT-HRN-01
Klein Scissors: https://amzn.to/3EhMLHE
Crimping Tool: https://amzn.to/40rOWQE
Heat Gun: https://amzn.to/4huyV2X
Butt Connectors Heat Shrink: https://amzn.to/4jqqPKJ
Heat Shrink: https://amzn.to/4hnzBHs
Zip Ties: https://amzn.to/4aM3vTX
Cloth Electrical Tape: https://amzn.to/40wenAk