Chevy Impala SS Forum banner

1 - 14 of 14 Posts

·
Registered
Joined
·
120 Posts
Discussion Starter #1
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.
 

·
Registered
Joined
·
120 Posts
Discussion Starter #5
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.
 

·
Registered
Joined
·
10,905 Posts
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.
 

·
Premium Member
Joined
·
48 Posts
but watch out if you put them in your brake lights, can kill the cruise control if you dont use the resistors.
 

·
Registered
Joined
·
120 Posts
Discussion Starter #9
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.
 

·
Registered
Joined
·
10,905 Posts
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.
 

·
Registered
Joined
·
120 Posts
Discussion Starter #12
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...
 

·
Registered
Joined
·
10,905 Posts
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.
 

·
Registered
Joined
·
120 Posts
Discussion Starter #14
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
 
1 - 14 of 14 Posts
Top