So I have heat on the passenger side front but not on the drivers side. AC works fine. From what I have read this is probably a stuck blend door or blend door actuator. Anyone ever replace one? Is it difficult? How much for parts???
2013 GX460

 

Is it throwing a code as well? There are self-diagnostics built into HVAC area.

https://www.clublexus.com/forums/gx-...l#post10484998

 

I get a code "49", something to do with the rear system. I have no idea if that is something, I never carry more than two people in the car. Could there be more than one code? How would I scroll to see if there was multiple codes?

 

IIRC.. Driver Temp up switch would scroll through more if they were there

 

Used the temp buttons, no more codes however I did notice the dash vent indicator was blinking too. Is it possible the 49 indicates a actuator failure and the blinking dash went light indicates the system?

 

On the code 49 you would have to test that from the back seat control unit. It changes airflow from roof to floor.

I’ll look around if I can find any DIYs on front servo replacements. There might be something here I forgot or a video on YT. I’ve seen more than a few on the 470 over the years.