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Discussion Starter #1
I have a 2011, GLS model, with the manual air/heat controls. The rear controls fail to work. If The blower works on different speeds when controlled by the main. I pulled off the side panel and discovered that the door actuator (if that is what it is called) and the door for to switch from cool to heat does not respond. I disconnected the motor for the air/heat and the motor for the ceiling/floor (unhooked where they go into the "door levers" so that there is a/c going to the back. I am stumped s to what controls both. Is this a relay issue, control module, what?

With what I have disconnected, I have a/c flowing through the roof vents which is fine for now, but I would like to fix it correctly. I really do not want to just start replacing parts as they look to be a bit pricy! Any and all help would be appreciated!
 

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Use the controls to move doors and see what you get. The blend door will control the cool/heat while the others direct the air flow.
 

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Discussion Starter #3
Use the controls to move doors and see what you get. The blend door will control the cool/heat while the others direct the air flow.
Thanks for the reply.
The rear controls do not do anything. No change with heat/air, fan speed, or top/bottom air flow. If I turn off rear controls, the fan speed changes in the rear but nothing else.
 

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It's either the HVAC module, the actuator or the wiring between them. You'll need to get at the actuator and do some testing.
 

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Not sure what the air/heat door is. Sounds like another name for blend door.
 

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Discussion Starter #9
Sorry. Yes blend door. There is another aviator motor to adjust from floor and ceiling vents. Neither one responds to the controls.
 

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Discussion Starter #11
grcauto, thanks again. I do have a couple dumb questions...what does the module look like and where is it located? I have googled hvac module for this vehicle and can not find anything
 
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