View Single Post
Old 06-30-2014, 05:40 PM   #2
strat61caster
-
 
strat61caster's Avatar
 
Join Date: Nov 2012
Drives: '13 FRS - STX
Location: SF Bay Area
Posts: 10,384
Thanks: 13,790
Thanked 9,502 Times in 5,013 Posts
Mentioned: 94 Post(s)
Tagged: 3 Thread(s)
The defroster uses the A/C pump, turn off the defroster and the A/C won't cycle, but then foggy windows.

It does this to dehumidify the air being blown across the windshield to reduce the fog quicker.

Edit: if the defrost blower is off and the rear window defrost is off as well then the a/c shouldn't be turning on, that'd be a dealer question.
__________________
Quote:
Originally Posted by Guff View Post
ineedyourdiddly
strat61caster is offline   Reply With Quote