Hi. I have a 07 toyota corolla. I bought led turn signals but I'm not sure what else I need for them or really how to properly wire them. The bulb is a 3157A bulb that is the parking light and a signal in one. I bought a new flasher resistor thing to stop hyperflashing. It does its job fine and works well. I thought that would get me by without buying the resistors. Apperently not. I put the new leds in and the signal/hazard function works fine but as soon as I turn the parking lights on the parking/tail light fuse instantly blows. To fix this I got uped the fuse from a 15 to a 30 amp. I turned the parking lights on again and not only did the bulbs not turn on... they started to smoke. I then realized maybe I should try uping the regular headlight fuse(s). So I uped them from 10 to 25amp and that seemed to work, with no smoke, but the bulbs still got very hot almost like halogen ones. I think not having a resistor is keeping full power to them making them get super hot. So now I'm wondering where do I go from here. How do I convert halogen to led properly? I'm trying not to melt anything here... do I need resistors? Can anyone walk me through this please? Any help is greatly appreciated... thanks.
I would never up the amps on fuses. You could start an electrical fire. The wiring system is getting very hot too.
@jonelco79 can you please copy+paste your answer into the "Your Answer" box down below. It doesn't belong here. Thank you.
I saw he answered this one this morning and was going to share it, but I thought you were probably already on it, haha.
If you must have LEDs, find ones which are sold as a conversion kit with everything included.
Don’t just mess around with your electrical system (especially fuses) as you’re quite literally playing with fire here, all for the sake of looks..
If you’re not confident, find a good mechanic or auto electrician to do the job for you.
Find a good LED designed for your purpose.
One other thing, you don't fix the fuse blowing by putting in a fuse rated higher than the circuit calls for...you run the risk of pulling too much current that circuit is meant to see and wiring isn't rated for and starting a car fire.
send this guy to the one that put his lug nuts on with j b weld. they're a matched set
Not worth a car fire!
I'm surprised that you haven't destroyed multiple systems. All this for brighter turn signals? Before you melt all you're wiring, put everything back the way it was and forget using LED"S. Would you put a higher amp cicuit breaker in your house so you could run floodlights instead of 100 watt bulbs?
The car was designed for the bulbs that came with.
There's nothing wrong with using LEDs. You just have to get the right ones and install them correctly - especially the headlights.
86 the LED and put the oem bulbs back in. Either that or increase your home owner's insurance so when your house burns down, you can get another place.
I really encourage you to look up how fuses work & what their purpose is. Upping a fuse like that is very dangerous.
I replaced all my halogens on my 02 Mustang and 14 Xterra. I found that the turn signals work best with the CANBUS type. The non-CANBUS types tends to hyperflash unless you install the loading resistors. Plus, the non-CANBUS LEDs have a tendency to disable the cruise control. The CANBUS types are more expensive though. I replaced my headlights with LED conversion kits and they work great - the headlight LED's come with a heatsink and some have a fan to keep them cool. You shouldn't have to increase the fuse ratings to run LEDs.