I'm at the end of an LED conversion to my stock tails, but i've hit a wall. My tail light wires will not power up the lights. I;ve found a writeup on someone who did a similar diy project, who said the fix was in the LOM; problem is, the LOM shown is not the same at all.
I was going to try maybe some positive trigger relays? but
1. I dont want 6-8 relays per light
2. don't know if it will work and am sure it would be a waste of time
Any ideas would be helpful, here's a link to the post that I found; I'm going to keep searching for something.
You need a resistor for the flash to return to normal speed. Less load faster speed. Like if 1 turn signal is burned out. Use an ohm meter to measure the old bulb and put the resistor in
Line on the hot side of the wiring. Should solve the issues.
also, i just got a multimeter a little while ago, but really dont know how to use it. ive been told to put it on the the setting with the ohm symbol and thats it... but how? if its a single pole 1156 bulb, red to the bulb input and black to the side for ground?
ya i figured, just trying to get it done and learn in the process. already decided to get a digital flasher unit; hooked everything up again (already hooked up once to test) and now.. of course.. more issues. diodes burnt up on the parking light circuit for some ungodly reason (couldnt find grounding issue) now the brakes wont work either. hoping i didnt blow the parking light relay in the process.
Gotta get up early, back to the drawing board tomorrow night.
Bypassed the LOM, Installed the electronic flasher and I had it working awesomely... for about 2 days. There doesn't seem to be any issues with any of the wiring that I can find, but now the Drivers side parking light will not power up. I'm guessing there is TOO much resistance, but its only 2% ? the pass side seemed to be having no issues, but will now flicker when activated (only when its pulsing, like the output from the alarm when its being unlocked, the parking lights are supposed to flash twice, but will sometimes be spiratic).
this is how its wired up
brake - diode (to prevent feedback) - LED
Parking - resistor - diode - LED
these are both going to the same power wire from the outputs , sharing a ground.
If I bypass the resistor and connect straight from the output to right before the diode, then it seems to work... but then i lose the fact that its dimmer, which loses the point of having parking lights!
In my one peice headlights, it has an LED strip with a diode on the power wire, a resistor on the ground... but im not sure the purpose of a resistor on a ground? maybe thats what im missing...
Who knows, I'm regretting doing this conversion, as the ole' ZJ has been MIA for about a week now and I really want to friggan drive it!
The resistor to ground is to put more of a load on the circuit, emulating normal bulbs.
Without actually measuring it myself, the regular lamps pull xx milliamps, via xx resistance( ohms) @ 12 VDC and this causes the flasher to heat up to a certain temp and flash properly. When you installed the LEDs in place of the bulbs, you decreased the amount of resistance in the circuit, thus not pulling enough current ( milliamps) to activate the flasher properly.
The company who sold you the kit evidently measured the total resistance in the circuit with and without the LEDs and added the resistor to provide the extra resistance....and therefore, current ( in milliamps) to make the flasher work properly.
Now have had the benefit of a $50K Miss. State EE education...( which I havent used in 35 years). So at least someone got some use out of it.
I'd have to see the entire schematic to know. Still they are adding the resistor in order to put the proper load on the circuit. What else depends upon that circuit functioning as it was designed, I have no idea. It may very well affect the TL issue because it's obviously not just an old style ( 1960 type vehicle) set up.
The resistor on ground was more of a 'maybe this has something to do with my issue, so ill check it and throw it in here.' Seems unrelated.
Im thinking I just need a different resistor but dont know what size or if thats right. the ones i have on there are 260 ohms 2%. i got the specs from a manufacturer of LED tail lights, but i dont know how to check ohms needed and am unable to find the information on the internet. Either way, stab in the dark...