2001 RX300 HVAC problem found that the mode servo was not working and did visual to see if it was working and it was not the other two were working fine. So ordered new one from dealer and in stalled and no change will not change from foot, center vent, or defrost. I have checked all fuses which are good. Is there something I'm missing? Still getting code 21,33,43. Any help would be great. Thanks

 

Any problem in linkages .. can you manipulate them by hand once you take the servo out. Does the servo move when you connect the wires and no the link.

Salim

 

Yes the vents linkage moves fine but I didn't check to see if the new servo worked not hooked up to linkage. Looks like I get to take it out and see.

 

Once you get there, you can test the old servo too .. and see if you really need the new one.

Tracing it back will not be fun, unless you have a schematic diagram.

Sorry, can help you much on the codes ...

Salim