Thanks for reading. I read many posts and just wanna get a quick sum of what may be the issue i have..

01 is300.. Heat is not scolding but gets warm.. Drivers side air comes out cool but passenger side air is warm.

Line in heatercore is hott, line out is hott.

Since i have warm on passenger and cold on drivers, how can i check to make sure the conversion flap from a/c to warm is fully closed.. Unsure the terminalogy or process, but something should block the heat to come out.. whatever that is might be not fully closing.. thanks

 

its your air mix servos, this is a pretty common issue across the board in lexus models, theres a good thread on how to clean them to get them working right again in the rx 1st gen forum on here, i dont have a link for you but i posted it up in here too for someone with the exact same issue several months ago, if i come across it ill post it up for you but you can probably find it by doin some searches for air mix servo

 

Will do my research on them, thanks