Forums. Disconnect the negative battery cable from the car battery. Fasten the wires for the headlights and the driving lights to the toggle switch. First prevent the engine from starting by disconnecting the feed wire to the coil. Trying to power headlights on Snowmobile Home. Your headlights and high beams will both work like normal, they’ll just be significantly brighter. The lights should be grounded directly grounded to the chassis . If you’re going to use a power supply, make sure its voltage output is within the light bar’s specifications. Source(s): Auto mechanic. What I did in my car was to install a 30 amp fuse + holder and a new 8 AWG wire. Connect one lead from the lights directly to the battery's negative (black) post or terminal. The question though is will it be brighter to run the headlight with power that comes directly from the battery? Disconnect the car battery. Use the existing high and low beam wires coming from the firewall to trigger the relay, run a new high power feed (with a fuse!) Disconnect the negative cable from battery. Step 2. Never touch the HID bulbs with bare fingers. Switch on the headlights and try the starter. That’s why I much prefer the third option, which allows you to simply use 12V lights without any other electronics involved. We show you how to custom wire your cooling fan, headlights, fuel pumps and voltmeters. hook the negative side of the battery to the block directly. The most important thing to remember is that you must wire them in parallel, as opposed to in series, to prevent overloading the existing circuit. If you wire them into the existing headlight circuit, you can skip the included switch, and keep additional wiring to a minimum. The headlights in our cars are wired directly, meaning all the electric current powering the lights goes through the lighting switch and a relatively long run of wiring. Lv 5. So the original low beam wire becomes the trigger to the relay only. When you switch on the headlights, the relay closes and the power comes from the battery instead of all the way through the switch, split to the headlights, and then grounded on those itty-bitty 18ish gauge wires. Once the headlight wiring is all hooked up, the Baja Designs headlight assembly is secured to the forks using rubber mounting straps. Install HID bulbs in headlight holders. This direct current charges your battery.The Accessory circuitThe accessory circuit consists of your battery, ignition switch, a STSP switch and accessories such as an electric PTO, Headlights, Taillights, etc. This way is direct and actually safer. While this shortcut is simple and functional, it will not optimize the charging system. Use a Scotchlok connector and tap into the high beam headlight power wire using 16 gauge wire . Looking at the wiring diagram, it appears the headlight runs ac direct off the stator. I mounted the fuse holder on the car body near the existing fuse block. Connect your light bar directly to the vehicle battery or another DC voltage source. This is significant because the headlights make up one of the highest loads in the entire electrical system. Use a test light to locate the powered wire at the headlight connector. Use the mounting brackets to clamp the headlights. This will be the high beam power wire. This wire leads to the “rectifier or R” terminal on your ignition switch. Use wire strippers to remove about ½ inch of the insulation around the wires then attach the wire connectors onto each wire. Jump to Latest Follow 1 - 20 of 28 Posts. just want to wire direct from battery to fuse to toggle to both headlights. Also, make sure it can supply the maximum current your light bar draws. A golf cart can have up to six batteries, so disconnect the negative terminal from each of the batteries. Mount the headlights. Step 2 – Disconnecting the Battery. The rest of the lights run dc off the battery. Cut the wire long enough to reach the battery's negative terminal. Finally, create 2 connectors that goes into the Angel Eyes Black socket with blue wires. Press them together until the clip clicks into place. This will probably require cutting the ends of the wires and fastening a blade connector to each end. Trying to power headlights on Snowmobile ... if all the points i made are correct here is what i would do. There are two wires coming from the ballast (which is the only component in the kit other than the headlight itself). All wiring should be placed neatly where it will not be scraped, abraded, or exposed to high temperatures - pay careful attention to rotating parts, belts, and suspension or steering parts that change position when the car is in use. You can also run them back to the battery negative terminal, but be sure to allow a separate 12 gauge wire for each side headlight. Lock them in position. no wires, no kit. It should contain two ballasts, two relays, two HID (Bi-Xenon) headlight bulbs, wiring harnesses and the connecting wires. Lights wire direct to battery. Unplug the wiring block from the back of the headlight switch. That would explain why the rectifier is between the stator and battery but not between stator and headlight. Connect the ground lead to the vehicle chassis or the battery negative terminal. 1; 2 ... As an example, the SMS heavy duty wiring harness for converting your headlights to direct-to-battery hookup comes equipped with two Dual 87 relays..just need to be sure which setup you have. The rectifier on the battery side is probably a regulator/rectifier. Remove the bezel around the steering column of the steering wheel. When converting from an external voltage regulator to an internal such as the 12-SI, many enthusiasts merely connect the Number 2 voltage sensing wire directly to the output terminal. All relays I've seen have a little diagram on them showing those features. Plug back in and turn the headlights on again. headlights have 3 wires Auto Mechanic: Victor , Technician replied 10 years ago Check whether the contacts on the wiring block or headlight switch are discolored. 4 years ago. When you are sure which lead goes to which, it is time to solder the wires to the 12v battery. The voltage-sensing wire is best connected closer to the battery. Power Electronics. This is more in terms of the wiring as I've decided where to place them and how to fix them in. Note: the alternator charge wire routes direct to the battery and not through any switch connection, the alternator will not operate correctly if not connected direct to battery or directly through the ammeter. The solution is to run a separate power line outside of the stock wiring harness that links the battery directly to your headlights. Step 3- Installing the HID Bulbs. Note: the wiring that comes with our kits should be used as it is sized to handle the amperage. There are plenty of items that could benefit from accessory power on a motorcycle.Dedicated GPS units, audio systems, and phones are just a few. Connect the headlight socket's ground wire to the extended ground wire with a butt connector. Not common on more recent bikes but not unheard of on older stuff. Run a wire from the other battery terminal to the switch, either terminal there. If there are only two wires, the remaining wire is ground and you should turn off the ignition and headlights and go to the next section. The connection is often simply a wire lead attached to the body; ... Connect the crocodile-clip end of a circuit tester to the live battery terminal, and touch the probe to the other terminal or terminals on the sealed-beam unit in turn. The second wire will connect directly to the new LED headlight assembly. Test each of the wires in the connector. Then, connect the other wire from the headlights to the second terminal on the switch. Hardware Design . Step-by-step we show you how to get it done. Remove the old bulbs. The straps are easy to … I ran the new wire from the starter terminal to the fuse holder. 0 0. melancon. One should read 12 volts. hook the charge wire to your lights. Use a wire gauge that matches or exceeds the maximum current of your LED light bar. The cathode goes into the ground—it can be soldered directly to the negative port of the 12v battery. The anode should be wired into the on/off switch, which is then wired into the positive port of the battery. For best visibility, try to mount them as high as possible. Then you install relays (which will be controlled by your stock headlight switch) into those new power wires. 9 years ago. I installed a RAM phone mount on my bike a while back so I can use the GPS without pulling my phone out over and over. And yes it will be fused too. 0 0. Source(s): https://shrinkurl.im/a7WM7. The stock wires are the signal wires to close the relays. This wire will serve as the headlight's ground wire. The batteries can be found under the front seat. Use the car headlamp switch in the right positions. direct from the battery, and hookup the existing high and low beam wires from the headlights to the "normally open" contact on the relays. I then am going to run a wire directly from the battery to the relay then to the low beam connection of the light. At the other end of the black fat wire harness, there is one red and one black wire which goes directly to your car's battery post. There are no fuses or circuit breakers. Go to the battery and disconnect the negative terminal. Clean them gently with a pencil eraser. If the headlights dim, check the starter pinion (See Checking battery leads and connections), its terminals and its earth strap. Lv 4. GPS apps drain a phone battery more than just about anything, so I decided to install a USB charger to fix that. The original headlight wire is connected directly to the battery circuit. If the battery appears sound, test with a voltmeter as described below. Mount the relay using a self tapping sheet metal screw. Steph. hook the positive side of the battery to the charge wire with a switch in the middle. Use 12V automotive lights directly from your battery, in series to achieve proper voltage; The first two options require some form of voltage converter, either in the lights themselves (making them more expensive and less reliable) or as a separate unit. Halogen headlights can generally be powered via your classic Mustang’s headlight switch. Headlight Toggle Switch. Let me know if that doesn't work, or if I didn't completely answer the question. At this point, it is a good idea to check that the home lighting system works. The best location for the relay will be near the battery. 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