Put in LED's....Blinker going crazy! [Archive] - GrandAmGT.com Forum

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shogun99
04-13-2004, 08:04 AM
I bought a set of 194 and 3157 LED's for my headlights. I installed them and they work fine. I also put in a blue 194 in the side blinker causes i put a black overlay on it and the orange 194 was too bright. Anyway, everytime i signal now, the blinker goes twice as fast......the same speed it goes when a bulb burns out. What did i do wrong? :knob:

iceman
04-13-2004, 08:06 AM
http://www.grandamgt.com/forum/showthread.php?t=15109

SC/TGrandAm
04-13-2004, 08:08 AM
thats because your suppossed to put a 6 ohm resistor inline on the 3157 bulbs.

shogun99
04-13-2004, 08:11 AM
holy crap....
wonder what would happen if i just left it like that?

iceman
04-13-2004, 08:18 AM
It'll keep blinking fast.

e2helper
04-13-2004, 02:36 PM
Actually the load resistor is placed in parallel with the bulb, not in series - but I know I am just being picky.

Reason for this is that per Feberal Motor Vehicle Safety Standards (FMVSS) the vehicle is supposed to indicate to the driver when a turn signal bulb is not working. In modern vehicles this is done by having the remaining bulbs flash at double-rate. Older vehicles with bi-metal thermal turn signal flashers just went solid ON.