hpcbmw Posted January 8, 2017 Share Posted January 8, 2017 My defroster stopped defrosting over Christmas. I thought it was the mode actuator (the actuator that decides which direction to direct the air), but replaced that and still no luck. A friend who has better knowledge of schematics and electrical helped me run a bunch of tests with a DMM and is pretty sure the problem is that the a/c control module is not sending the correct signal to the actuator. My car (2005 LGT Limited) has the dual zone a/c and heater controls with nav. I see lots of parts cars with single zone and no nav, but very few with my setup. A brand new a/c control module looks to be about $250 from the discount subie dealers. I'm sure I can find one for $50 or less from a parts car, but want to be sure I get one that will work with my subie. Any ideas on if parts from other subies with different HVAC systems will work? EDIT: Interestingly, the part that comes up when I search online dealers is 72343AG01B, but the part that is on my car is 72343AG01A, identical except for the letter "B" vs "A". Looks like "B" superseded "A" when I check online. Thanks! Link to comment Share on other sites More sharing options...
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