Turn signals are a rather simple electrical circuit involving just a few components: lights, relays, flashers, turn switch, indicator, and wire. The diodes probably cost about $1 each, get the "heavy duty" ones like used in battery chargers and power converters - need 12-15 volts and at least 2 amp rating! The main difference is the turn signal switch in the steering column. A diode works like a "one way gate" it allows power to go through one way, but not the other! How To Do It (Note: Read these instructions completely at least once before getting to work) Express Instruction: 1. Buy the kit and be done with it. I melted a few wires together because of the change to LED lights. Going to get back under there and treat the connections with some electronic cleaner since mine just seemed like a little corrosion problem and not a burnt wire or connection. turned out to be the switch was stuck just off enuf to eliminate signals and brake lights. Turn signals do not flash at all, both directional indicators on the dash come on dimly when the brake is pressed, and the brake lights do not work. Signals and Brake lights are both operated on the high side of the tail lights, Bulbs or LEDs. I have clear tail lights, and wanted to make a seperate amber turn signal.. me and spooge came up with the idea one day to make "Clear Euro's" Well, first step is to remove the steering column cover. The park lights, turn signals and 4 ways work. Join Yahoo Answers and get 100 points today. As a result, if I hit the brake, both LEDs and both turn signals light up. And of course you could put diode in circuit to stoplight side, and prevent any current flow at all "back into vehicle"! wrong! This picture shows you the wiring for the 1-filament configuration. Also installed new backup lights under the bumper. We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. Now if something should somehow happen that you would get some kind of adverse reaction, it is totally possible to isolate circuits on each side by using a couple diodes on each side! Can you purchase a gasoline can at a thrift shop? Why did I do this? Basically you'd have to buy all the components that are inside the kit and build your own convertor. Separating Turn Signal Here I will describe how to separate the turn signal from the brake light. Please refer to the linked video. but looking at the parts book shows the same taillight harness for all 53s. So there should be no problems with anything on truck as far as affecting operation of all the other lights! one to remember tho. There was a minor impact to rear do not know if that has anything to do with it or not. Ground the white wire to the trailer frame. A two-filament or two-wire fixture is required to do this. switched out flasher from my 2004 and hit the emergency flasher switch to try it out. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. All dash lights and interior lights work. what the hell would that have to do with brake lights...right? #13 fuse is still good. First of all you are running 2 bulb elements on each side. I did this on a Mercedes sports car in 70s, when all the electronic stuff was not so common! Since your turn signals work but the brake lights don't, I would check your brake light switch and make sure its ok. You consent to our cookies if you continue to use our website. Thank y'all! Then you'd have to encapsulate the components so they don't get shorted out in a rain. Brake Lights do not turn on when brake is applied 3. To most drivers, turn signals seem pretty simple: There’s a lever that makes your signal lights flash. Done! On yours with the seperate rear signal bulb, your signal switch does not seperate the circuit from the front and rear (they are connected together) so what you want to do cannot be done. Check that its getting juice with your meter. My hazard lights work (tail lights and turn signals) B. When you complete your turn and turn the steering wheel back to center, a cam on the steering column catches on the turn signal lever and cancels the turn signal operation. Turn Signals do not turn on when switch is flipped-no lights or sound 2. This is achieved by routing the power to the turn signals through a flasher or module that sends pulses of power to the lights instead of a steady stream. screwy. When no turn signal is selected, both brake lamps will receive power when the pedal is pushed. Everything looks fine. This is what seperates the front turn signal circuit from the rear circuit on a vehicle with brake/turn being the same bulb. After swapping the turn signal switch in the steering column, the problem went away. There are 3 Visualize a "Y" laying on its side, -- power from stop, and turnsignal hook on the "forked side",--- the trailer stop/turn (wire to bulb) hooks on the single side! My third brake light still works. Locate brake and turn signal wires in the trunk. The turn signal switch turned out to be the problem (at least temporarily). With NEW MFS and OEM flasher relay, the brake lights DO work, but the turn signals and hazards do not. Thanks for the answers, I'll just buy a kit instead of risking shorting something or burning something up.. The park /tail/run lights are on 2 separate circuita, and run direct to railer! But there’s actually some cool technology at work… Now it is possible for power to flow towards trailer, but can't flow back from trailer circuit into the other circuits (and back to other stuff in vehicle)!