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Re: Climate control / HVAC dead, stuck on full defrost
Quote:
Originally Posted by irox
Hi,
I had a s seemingly dead HVAC, but it turned out to be a faulty T(Timer)CU causing a voltage drop. Unplugging the TCU made the HVAC work again. I didn't have the blower stuck on, or any lights on the control panel. If you pull the unit, it's probably worth checking power and ground before installing the donar unit.
Good luck!
Ian.
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Thanks, good tip. On the list of things to check when I can get into it again.
Looks like this shouldn't be too hard to get at / swap out if needed...much easier than swapping out the HVAC unit at any rate. I suspect someone's been in there before also, as the glove box already mysteriously has screws removed from it 
Any idea where the main grounding point is for the HVAC unit? I'd like to check that out as well while I'm poking at stuff.
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Ebony/Gray '92 LS-L, @123k - bought 01/17/2010, parked for 10 years. Getting back on the road.
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