So I just put in some LED on my truck ( hi n low beam) and after I put them it said that I had a lamp out which I dont but when I turn the high beam on the lamp out go away but when I go to low beam it says again that I have a lamp out
what can i do?

 

The reason you're getting that message is because the LED bulbs are not drawing enough power, so the computer in your truck thinks there is a dead bulb. You would need a resistor or something that can make the computer think that there is enough power.