[ARCStig]

I just got some LED bulbs for my 1993 Buick Roadmaster Sedan, and popped them in, and discovered the signal arrows in the instrument cluster stay on all the time when parking/head lights are on. Otherwise they work excellent. I was wondering if anybody else has put LEDs in and had this issue? and is there a solution which doesn't require cutting up my wiring harness to put in a load resistor? I also noticed that the side signal/parking lamp dose not work unless you pop on the hazards, or put on the turn signal.

 

[ARCStig]

Nobody has any ideas??

 

[vada]

load resistors only.

 

[vada]

and i spliced mine, no cutting necessary.

 

[ARCStig]

Thanks. I was hoping I wouldn't need those, but it looks like I will have to because of the way the lights are wired up.

 

[Fred Kiehl]

You can get electronic flasher relays from NAPA (I believe the one for the turn signals is EL12). If you use them, you do not have to use the resistors. Using the resistors defeats the purpose of the LEDs, which is to reduce the power needed for the turn signals. You also need one for the emergency flashers, but I do not know the number for it.

 

[vada]

i did it cause the lights are a ton brighter than the regular ones.

 

[vada]

but watch out if you put them in your brake lights, can kill the cruise control if you dont use the resistors.

 

[ARCStig]

I'm only thinking I need resistors because if I put LEDs in then the mini bulb on the side doesn't work and the turn signal bulb stays on all the time. Perhaps I can pop them in when it's a bit warmer out and you can see what is happening.

 

[Fred Kiehl]

I'm only thinking I need resistors because if I put LEDs in then the mini bulb on the side doesn't work and the turn signal bulb stays on all the time. Perhaps I can pop them in when it's a bit warmer out and you can see what is happening.

If you use the electronic flasher, it does not matter what light bulbs or combination of bulbs you have, it will work properly.

The LED bulbs with a heat activated flasher will cause the turn signal to remain on, and not flash. Read what I posted above.

 

[ARCStig]

I will try it, and see what happens.

 

[ARCStig]

Ok so today I got some Electronic flashers, which solves the issue of the signal indicator arrows being on all the time, and they flash normally now, but they are on when my lights are on, and the side marker light (which Is also LED now) doesn't function, unless the turn signal is on. Any ideas to fix this issue?...I really, really, really, really don't want to modify my wiring harness in any way if possible...

 

[Fred Kiehl]

The side marker lights may have a polarity issue. I do not know how to remedy this. The polarity may change when the turn signals are not activated. You may be able to get bulbs that are not polarity sensitive.

 

[ARCStig]

I've already got bulbs that aren't polarity sensitive, and they are CAN-BUS compatible, even though I don't think that was an issue for '93 cars. But I switched the bulbs around anyways and got no better results either way. But I did find out that the mini LED bulb will come on for about half a second when you plug it in with the lights on, then the turn signal LED bulb will come on dim, and the mini bulb will go out. Tried this on both sides with the same results, but works fine with the turn signal is on. Perhaps if polarity is what the issue is, I may need to get some LEDs that are polarized? And don't know if this could be a related issue, but my electronic flasher got extremely hot when I was playing around with my bulbs. Even though it was only on for a few seconds. It got so hot I could smell it and decided to investigate... :O

 

[Kbunner]

I will try it, and see what happens.

I just got some LED bulbs for my 1993 Buick Roadmaster Sedan, and popped them in, and discovered the signal arrows in the instrument cluster stay on all the time when parking/head lights are on. Otherwise they work excellent. I was wondering if anybody else has put LEDs in and had this issue? and is there a solution which doesn't require cutting up my wiring harness to put in a load resistor? I also noticed that the side signal/parking lamp dose not work unless you pop on the hazards, or put on the turn signal.

Where are these relays located so I can replace mine also

 

[Fred Kiehl]

You need the electronic relays. The OEM ones are located on the left side of the steering column under the dash on the inconvenient convenience center. They are the aluminum cans. One is for the turn signals, and one is for the four way flashers. I think the one with the yellow stripe is the four way flashers. I think NAPA has them.

 

[toonwarrior]

You need the electronic relays. The OEM ones are located on the left side of the steering column under the dash on the inconvenient convenience center. They are the aluminum cans. One is for the turn signals, and one is for the four way flashers. I think the one with the yellow stripe is the four way flashers. I think NAPA has them.

So I have the LED flashers in and they work with the LED turn signals I have up front perfectly fine.

But when I popped in LED lights on the rear tails it fails to function properly. The rear tails will flash but the front turn signal doesn't. Behavior is all wonky which I assume is due to low draw so I kept one non LED bulb in each tail lamp for it to work but I do want to address it properly.

I'm wondering if its a choice of LED flasher, I have this one below to which I'm not sure if there is another that I should be using. Or if I should just put in a resistor.

CF12ANL-01 LED Bulb Electronic Flasher - 2 Pin Black American Flasher

Pin Diagram Legend L = Load B = 12V IN Description Electronic LED Flasher Relays have no minimum load-12VDC. Eliminates the need for load resistors, turn signals will flash at normal rate with or with out LED bulbs.

www.superbrightleds.com

 

[Fred Kiehl]

There are some wires that change polarity in the front. LEDs will only work with the correct polarity.