wiring off road lights

You will need a switch, a 40 amp relay (bosch), a 40 amp fuse + fuse holder, 14 gaue (as small as 16 gauge wire) and time. Find a good solid ground for each bulb. Ground one side of the switch, the other side of the switch goes to pin 86 on relay. Hook one side of fuse to battery, the other side to pin 30 and 85 on the relay (you can use your 10 gauge wire here). Pin 87 is your output wire to power the lights, hook all the + bulb wires to this lead, run separate lines from the bulbs to this relay, or run a good heavy line from the relay and tap into the line as it goes past each light.

Yes 14gauge is sufficient , 25amp fuse... 30 to play it safe (the bulbs draw more power when they first light and when its cold) 30amp relay.

Take some 14gauge wire... a relay... a toggle switch and some time.

Pin 85 = wire running to switch

Pin 86 = +12V Battery

Pin 87 = +12V Battery(same + wire as 86)

Pin 30 = wire running to the lights.

Take your switch, and on one side, ground it out.... on the other side... hook it to 85 of relay.

Now, when you flip the switch, the relay clicks over, pin 30 is energized, and your lights will take off. Simply run the single 14g power wire up one side of the light bar and all the way across the bar ending with the last light. For each light, bare the power wire back and connect your light power wire to it, and ground each light out on its own.

Hooking em up how you would like ... +12v to 1st light, ground to 2nd light's +, Ground to 3rd lights +, Ground to 4th....... if one bulb burns out, the entire circut is dead... leading you to believe your problem lies elsewhere... be sure to use some GOOD electrical tape and some "Liquid" electrical tape to seal your connections outside the truck

Good luck

uh oh....my diagram that came with the relay says different. It says hook

pin-85 --->to ground

pin-30--->to fused power

pin-86---->to switch

pin-87(wich it has two of these pins)---> power to lamps.

 I wonder what the difference is? And also do I need to hook anything up to the switch besides one power from relay and one ground? And if not which spot on the switch do i put it on? the power in or power out?

Autozone relays is your difference. With relays, as long as there is current from side to side (85 86) there will be current up and down (87 30) so if you stick a ground on 85.... 86 MUST be a + ... and you can wire that backwards... same with up and down... if you have 12v comming in through 30..... your accessory must be on 87.... the difference between the relay you have and the relays we use, is the center pin is configured differently. On your relay, 87(top) and 87a(middle) are one and the same... actully connected within the relay, so when the relay is active and 30 has juice..... 87 and 87a will have juice.... on our relays..... when the relay is DEAD, pin 30 and 87a are connected, when the relay is LIVE 30 and 87 are connected.

The relay you have will work for what your wanting to do.... just a note to you and everyone else, dont use AZ relays, espicially for reverse polarity..... spent too much time invesdigating this matter "well... is it positive pulse??? negative?? no.. i just tested it.. its reverse polarity... must have wired one relay wrong...." *Blown fuse* "Nope... guess not" sucked

Ok... did you buy your relays from AZ?(autozone) Bah... Ok.... You'll need 2 relays to achive what you want. The toggle switch, is it a lighted switch? meaning... its colored plastic and when the switch is on.. it lights up, and powers your accessory? probably. Ok...  with that switch setup: GND/PWR/ACC, Hook up your ground wire. Hook up your power wire wherever you choose. Your "acc" wire, or... switch output wire will supply +12v to pin 85 of both relays. Pin 86 will be grounded on both relays. Pin 30 on both relays need to be +12V fused, from the battery. Pin 87 will be your  "Fog light power wire" which you will run out of the vehicle to the lights your wiring. Use 1 relay to power your light bar, use the other to power the other lights. So.... comming off of the switch... you have 12V triggered by the switch. This will activate/deactivate each relay, turning on/shutting off your exterieor lights.

Do yourself a favor... wire the relays and switch up close together. This will minimise the wiring going everywhere.... if you do it this way.. you will have 2 power wires comming through the firewall, and 2accessory(power) wires leaving the cab of the truck

That make any sense? im beat heh

When you mentioned you had your relay, but the diagram said 87 and 87a should run to your lights is when i thought you had AZ relays. AZ is about the only place i have found relays wired like this. Was late at night, we were out of SPDT's and az was the only place i could get em... got em ... wired up my 5wire reversal, blew fuses left and right... finally sat there with a test meter and figured out why... screwed me up bad = ) about the only 5 pin SPDT relays i have came across wired differently than they are supposed to be

Ok... about the power wire for your relays to your switch. Most switches cant handle ALOT of amperage. If you were to use a single toggle switch to power something that was drawing lots of amps, the switch would get hot, possibily melt, and burn up quick. Using a switch to "trigger" a relay, uses very little amperage, meaning you can use 1 single switch to trigger many relays, and never run the risk of blowing the switch apart.

If you wire up your relays to your lights. 87 to lighting, 86 ground, 30 +12V, the lights are sitting there ready to come on. By placing a +12V on pin 85, the mechanical/electromagnetic switch inside the relay click over and make contact. Connecting 30 and 87, giving you power up and down through the relay, all the switch does is turn the relay on and off... the relay turns the lights on and off. Its alot more reliable to use this setup, opposed to using just the toggle swithc to turn your stuff on and off.