Bought 31mm or 3175 festoon led blubs for map light/dome light for my Xa. Both of them when installed does not turn on.


I have tested these in my other car which is a 2007 corolla which takes the exact blub and it works.


What is the cause of the problem??

 

Probably just luck but leds are polarity specific, did you try putting them in opposite direction

 

Thanks


This fixed it!

 

Cool, must have been luck when you put it in the Corolla