Drill the required hole in your dash for the switch; leave the switch free for the moment. If you are replacing existing lights, you will first need to remove those. Step 4: Pop in the bezel back in place. Both of these 12V power lines need a 10-amp inline fuse. Regardless of which you opt for, here are the proper directions to install fog lights on your 6th generation Honda Accord. Can I join these driving lights into the high beam relay so they operate off the high beam switch along with the high beams? I’m attempting to learn how to wire some lights on my vehicle in the rear for backing up at night using a relay switch. I picked up two vintage fog lights at a yard sale and these will be installed on my Volvo. 3. These electrical systems are fragile enough without adding aftermarket accessories. Ron Dubiel. Throw down the wiring harness form the relay and switch kit and connect it to your fog lamp unit. Step 5: Connect the wires to a relay and switch wiring kit, directions for which you can follow on our relay and switch installation guide. Driving lights and fog lights came about as car owners navigated the twisting turning by-ways of misty England. Also thanks to the person correcting or adding additional information, many would have gone and said nothing. A three way connection is made to the power source for both lights. In the good ol'days, the fog light switch which came with the light stalk effectively used to have a seperate turn on wire solely for fog light control. Connect Your Fog Light Switch Your installation package will come with a power wire that's split in the shape of a "Y". Hot fog light bulbs create high pressures inside the fog lights assembly, and temperature differences only increase as lens cover surfaces cool from direct airflow contact at speed. August 14, 2012 @ 2:36 am Once the liner is removed, release the clips on the black fog light inserts from behind. The PIA unit is somewhat expensive but far less than having some idiot smack you in the rear in foggy weather because he was driving too fast for conditons. Using a relay makes the job more complicated but it is a safer method. Condensation does not mean that a fog light assembly is defective, and the presence of fogging or misting due to condensation is not considered a valid reason for warranty replacement of the entire fog light assembly. My lamps are vintage and each unit reads 35 watts. Even though the fog lights aren't bolted in yet, reconnect the negative battery terminal and perform a test to make sure the fog lights work. Run a piece of 18-gauge wire from terminal 30 to the toggle switch. Sid Nau There are sharp folk out there! Aftermarket fog light switch (how to wire in) An alchemy of sparks, copper wire and earth. No aftermarket switches, relays, or wiring to cause problems. We recommend referring to your fog light's corresponding installation guide included in your package or online at our LED fog lighting guide page. This article was very helpful, as well as were the critical comments. Repeat these last 5 steps on the other side. I purchased an inexpensive aftermarket fog light kit for my 2010 Tundra DC. Looking directly at the back of the housing it’s hard to tell if it’s 9145 or 2504. Explained very well. Wiring diagram and the sequence below. It is always essential for all the workers to get hold of proper information regarding the rules. They should be around 10 to 24 inches above the ground or at least below your vehicle’s headlights. Otherwise, if you are unsure, rather get a professional technician to assist. How do you wire aftermarket fog lights? Step 2: Reveal the installation area behind the wheel well liner. You can also add factory fog lights by swapping out your front lighting harness for one from an 84-96 Cherokee or Comanche that had fog lights. Compliments on a well-written and informative article, but I have to offer one criticism. Fog lights don’t penetrate fog. I wanted the driving lights connected with the low beams to be legal in Washington State…hence I tied the wiring as written. The installation guide is also compatible with the earlier 2010-2011 Toyota Prius models, minus the fog light bezel step which the 2012+ models lack; the wiring instructions will be identical. February 16, 2014 @ 2:16 pm FinnishSmart. Locate a suitable body connection point and drill a 7/64-inch hole in the body. At the end of the article, you mentioned that foglights were “racer cool”. Nothing can do that in fog except maybe infrared or radar. I installed a 30A, 12V relay in the fog light socket inside the fuse box under the hood. Could anyone direct me to some information on how best to wire in aftermarket front fog lights on my '97 900? Cheers Nicholas Turn on the ignition and hit your switch. Many kits color the outer insulation for this wire white. That would be the proper and safe way to install the lights. Your article was the only one that i found on the web with clear and simple instructions P.P.S. Need to push the button to turn in the fog lights or off. They are not tied into my regular headlights or fog lights at all. If I put fog lights on my car, I’m saving one for the rear. I have added a new bumper that has the holes for them and I have picked up the lights. Great post man! Turn on the low beam headlamps. To: <[hidden email]> Subject: [TriumphTrophy] Aftermarket fog light wiring Date: Sat, Jan 11, 2014 3:10 am Hello! I picked up a pair of 2" SAE led pods in fog configuration. If he didn’t have a rear fog on the drivers side, the car would have been junk. One of these wires from each fog light has already been connected to ground. I currently have them mounted to the side reflector mounts on the forks. April 22, 2019 @ 12:21 pm The final terminal on the relay is numbered “87.” This terminal will carry power to the fog lights. This how-to will instruct you on installing fog lights … My 350 ML Benz has factory fog lights and I often drive at night with both headlights and fog lights even without fog as the fog lights help reveal the infamous Jersey pot holes. When high beam is on, power will be interrupted when the relay energizes. Faced with criticism (gentlemanly criticism, but criticism none-the-less), he remained humble and in the end learned something himself. There is one more oft-omitted benefit to driving lights and fog lights, simply stated they are “racer cool”; installing these lights, however, on your favorite British sports car takes planning and preparation. The relay location must be well protected. It needs to be near a 12V power source. Ed Hargrove. I will be using 14-gauge wire, which handles up to 11.8A. The fog lights are positioned first, the switch second, and the relay last. There are a few screws on the bottom near the bumper, and a few plastic retaining clips on the edge of the wheel well. I found a power source for my relay terminal number “30” on the low beam wire of the left headlight. How many fuses do I need and what size? (Same for the black wires? I know that 16 gauge is too large because that is used for several non-lighting circuits in my Sprite. Should I change the relay connection of 85 and 86. I have them wired to a switch, but its just getting annoying having to flip the switch every time I mess with the high beams. If you purchased your relay from a reputable source, it will have numbered terminals, which aid greatly in connecting everything correctly. (I have an original BMC Workshop Manual, but it doesn’t mention wire gauges.) 3) Some onboard "Big Brother" may throw a diagnostic trouble code due to excessive current in … I drive a 1994 Dodge Caravan and I was wondering how to wire my fog lights so they automatically turn off when I switch to high beams. Not that I’m an expert or anything but connecting the other way round as explained in the write-up would be basically the same as crimping both fog lights to one low-beam headlight which would result in blowing the headlight fuse(?). Install the fog lights. When all lights are “on” there would be an extra load on the low beam headlight switch as noted…it would be better all around to wire line “30” to a fuse block location and not to the low beam wiring. In this video I'll show you how to run and install the wiring for offroad lights such as these KC brand lights. The following advantages will be seen when using this wiring scheme. Locate a suitable body connection point and drill a 7/64-inch hole in the body. Basically, I installed the fog lights, ignored the packaged harness in the kit, and instead plugged them into the prewired connectors in my tundra. On low beam, power from the switch will pass through the relay on terminals 30 and 87A. It usually come with a drilling template so it's quite easy. I use a relay to control the power to the lights. When installing OEM Myotek fog lights it might be tricky to tell what kind of connection they actually have. As I was coming around the mountain, all I saw was a single light. August 30, 2020 @ 7:15 am If you don't want to use the OEM fog lights you could snip the plugs off or make an adapter. This white wire will need a 10 amp inline fuse and is connected to the fuse block. This must be done for the switch, the relay and each of the fog-lights. Han van Pelt. 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