LED change problem

Saulens

Newly Enlightened
Joined
Mar 19, 2020
Messages
1
snnqz8F
Hey,

Maybe someone can help. I want to change LED diodes for my BMW from red original to orange color ones.

When i remove original led all circuit wont work. After i solder new standart 5mm led it also want work, but if i solder onto original diode contacts new orange led contacts it works. So maybe ideas what to use or do?

https://imgur.com/snnqz8F

https://imgur.com/2frxbNF

https://imgur.com/07wWGh8

https://imgur.com/J9GVnko

https://imgur.com/A7MOn8j
snnqz8F
 

lightfooted

Flashlight Enthusiast
Joined
May 6, 2010
Messages
1,017
Yes, LEDs are polarized components. Positive connection to positive connection and negative to negative. Also there is likely control signals going to the board and causing power to operate the LEDs as I am guessing this car has a CANBus. And when you said "After i solder new standart 5mm led it also want work" I am guessing that you simply didn't solder it in properly polarized or you did so but to the wrong connections. The OEM LEDs do not appear to be anything special other than the casing plastic and that is probably just to make them sit properly against the external housing. Your last picture with the operating Orange LED is what you are going for correct? Note the flat side of the LED casing and which lead is nearest? That is the negative connection. Simply use a multimeter to measure the voltage and polarity of each board connection and they should operate correctly when you match them up.
 
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