I have a 2010 2gr-fe alphard. No air, hot or cold ever comes from any rear vent, weirdly there are no codes from the climate control module (accessed by holding AUTO and FRESH/RECIRC buttons) I would appreciate ideas for where to start diagnosing with this info. Thanks in advance =]

might be the small servo that opens and closes the vents is jammed or not working.

Any clicks or small noises from behind dash when changing temp?

 

I had this on a 10 series and was accessible under the right of the glove box, maybe similar place for the 20 series

 

I'll check this (probably tomorrow now) and get back to you. thanks!

Just a thought - the rear has it's own air con system. You can set it by pressing the 'Rear' button on the dashboard heat controls - circled on my 10 series.

i know it's basic but I thought I would check.

 

Press the button and then set temp and fan speed etc. for the rear.

@lime Did you manage to figure it out? please let us know