Question about 2000 Chevrolet Blazer
The whole hvac system stopped working . Mechanic said " bad blower module" I replaced that ...no change. Since then I have bypassed all modules, fuses and such to the blower motor ,which works fine when supplied w/ direct power. I have checked the hvac fuse and all others, they are all fine. At this point I have the Computer Climate Control unit removed from the dash and have tested the wiring harness which feeds it. With info found on-line I tested for voltage on specific pin numbers of the harness. With the info i have, it seems to check out good. So this leads me to believe that its the CCC unit which is bad. I'm still not sure but it would make sense that with a bad control unit the proper voltage would never make it to the blower module/motor. So that's where i'm at. Any suggestions are appreciated. I'm hoping maybe I just overlooked a relay somewhere.
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Posted on Jan 02, 2017
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