Extra Backup Lights Wiring Through Relay

You will have the ability to have the lights off on with reverse or on with acc or anytime if you run a new wire. The relay wiring kit for up to 180w light bar is ideal for these type of configurations. Spst relay one separate fused power source from the battery to the 30 pin 85 pin to ground 87 pin to lights load power out wire from switch to the 86 pin.

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The line you spliced off your high beam wire or your backup light wire.

Extra backup lights wiring through relay. Rig up your auxiliary lights to come on when you go in reverse. For example you could splice a wire off your high beam wire or off your backup light wire. 85 and 86 can be reversed. I show you the step by step process of how i wired my truck with a relay so when i put the truck in reverse the led reverse lights.

In this case you need to wire the dash switch in between the trigger current i e. Note position 2 wire connection will be inserted after this relay. With our wiring harness all you need to do is cut the wire coming from the switch to the 30 prong on the relay and wire it to your high beam lead or your backup light wire. That way when you do have your high beams on the current from that goes to the dash switch first and if that is off the electricity can t get to the 85 86.

Personally if i were going to add on an addtional lamp for the rear i would use the existing backup light wiring to trigger a relay and have the main current source for the add on lamp go through the relay instead of the factory wiring. Sometimes those extra amps being pulled can do funny things to undersized wire and connector pins. Relay 1 is basically a break for the stock circuit. However i did run some wires all the way up front because i did add a relay control so i could turn them on off at will but in normal mode be activated by the backup lights.

At position 2 power goes to reverse lights. So you take the existing reverse light wire going to the reverse lights but after the transmission switch and put a relay there. Below are some posts from a ju thread. If you don t you run a good chance of melting down your wiring harness burning out your backup switch or worse case causing an electrical fire in your vehicle.

At position 1 the power goes to relay 1. Now i have extra backup light but manually controlled light if i need it to hitch up the trailer at night and not have to use a flashlight. All because you didn t take the time to use a 4 relay and a couple dollars worth of wire to properly complete your backup light project. 86 connect to a ground.