ngm01

I've already changed the driver side footwell actuator arm in my C32. Now the clicking's back..seems like its coming from the upper part of the passenger side, maybe the fresh air, blend air or defroster position. is there any way to isolate motor operation by means of the AC Controls so I can narrow down the choices?. In any event it seems like I have to pull the whole dash off.
Thanks

Supgee

the star diagnosis scanner will sometimes have fault codes stores for the stepper motors like (drivers footwell is blocked, etc)