I Drive a 1998 jeep cherokee classic 4.0L Recently i redid all my lights converting them to led's. Well the switch inside started making a buzzing noise For my blinkers and the lights would either stay solid or just not turn on at all. so to remedy the issue thanks to this forum i bought a new signal relay that could handle the led's so we are all good there.

However now when i turn the lights on say my dims or brights both of the blinker lights in the dash stay on at all times. I was under the impression that this meant i had a burnt out bulb? but i dont. so what can i do to fix this? any help would be great thanks.

Also maybe i missed something but i searched extensively before making this to ensure that i didn't recreate a post im fairly new here so if this has already been addressed let me know thanks.

 

It ONLY happens when you turn on your headlight circuit?

What about if you turn on just your parking lights?

Also, do they function normal when you don't have your headlights or parking lights on (say, daytime)?

 

Sounds like you have power being backfed to a ground circuit Could be a bad ground. Are the LEDS polarity dependant?

 

No sorry it does do it when i pull out for my running lights but they stay on when i have my lights on bright or dim as well.

They always function right but the dash lights are on at all times with the lights on whether it be parking or headlight. Almost like its telling me a bulb is blown but its not i think the leds are messing with it more

 

How do i tell if they are polarity dependant?

Where can i search on my jeep to find the ground that your talking about?

 

Turn bulb 180 deg and plug back in.

 

I don't see how that's going to help the dash light issue though.

 

Our age of jeeps don't like leds. You either have to buy foolers or go back to normal bulbs

 

I tried that already just on an off chance while installing them the firat time

 

I have heard of wires you can plug into the headlight socket to make the current more healthy do you know what im talking about? If i heard it i would know it

 

Reverses polarity. Have you put old bulbs back in see if it does same thing yet ?

 

If I'm not mistaken. The turn signals work off resistance. If the signal indicator is stuck on in the dash after you turn your lights on it probably also blinks fast, Meaning the jeep thinks the bulbs are out because leds don't have as much resistance as a incandescent bulb. If you put load resistors in line for the turn signals it will see the right ohms and turn off the indicators on your dash and stop the hyper flash.

 

I'm still sticking with power being back-fed through a ground circuit. I dont know off hand where the grounds are exactly but if you are getting this serious about fixing your jeep you might need to spend 15 bucks and invest in a Service Manual. Hayes/Chilton Etc...

If they are polarity dependant the Diode will not allow the power to flow in its intended direction and instead it will look for the path with least resistance, which will usually end up being the indicator bulbs.

I would start pulling bulbs out one at a time. start with the marker lights and see if the TS stay on with the lights on. Then move to the forward facing TS/Marker bulb. I'm guessing its going to be one of the front bulbs since the rear TS bulbs do not act as markers when the headlights are on like the fronts do

 

Thats what foolers are. Resisters

 

You got auto-corrected