First summer with our 06 Toyota Sienna that I picked up last year.
I just discovered that the rear A/C blows hot if I try and control it from the front HVAC controls for the rear. If I switch the front HVAC for the rear to "Rear" to allow the rear A/C to be controlled by the controls in the second row, the rear A/C will blow cold and functions as normal. It doesn't have auto climate control or anything, just manual dials.
I've been doing this for a few weeks but it sucks if my 3 year old is back there and I have to stop to reach into the 2nd row to turn the fan up/down etc.
Any ideas? I've never had to diagnose a split A/C system before and especially such a weird issue where the A/C functions good but only for the rear from the 2nd row.
I just discovered that the rear A/C blows hot if I try and control it from the front HVAC controls for the rear. If I switch the front HVAC for the rear to "Rear" to allow the rear A/C to be controlled by the controls in the second row, the rear A/C will blow cold and functions as normal. It doesn't have auto climate control or anything, just manual dials.
I've been doing this for a few weeks but it sucks if my 3 year old is back there and I have to stop to reach into the 2nd row to turn the fan up/down etc.
Any ideas? I've never had to diagnose a split A/C system before and especially such a weird issue where the A/C functions good but only for the rear from the 2nd row.