JsLS400

so i was driving home one day and was sitting at the light with the ac on it just stopped working the power on the controls were on like it was working but it doesnt blow anything out even the heat i had check all the fuses they are all good. could it be the relay? and is there a way to tell if a relay is bad? does anybody what the problem could be? it sucks because winter is here and it is so cold

shadowless

so if im understanding correctly... it doesnt blow out air but the display is on and working. do any of the speed settings for the fan work??? check and see if your blower motor resistor is busted. that is a common thing in heat/sc systems when the blower stops working. you can also disconnect the connector on the fan and run 12v and see if it runs to rule out that idea of a bad fan.

somnoboy

I don't know what year your LS is (you all really need to specify this in your question/thread titles), but a very similar problem is being addressed right now right here:

https://www.clublexus.com/forums/ls4...r-problem.html

JsLS400

same thing the setting come on for the speed but nothin i will try running a 12v to the fan and see if it does anything thanks