Electrical question

By thirdgoat
September 10, 2005 in 1999-2013 Silverado 1500 & Sierra 1500

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thirdgoat

Posted September 10, 2005

On my 1999 Tahoe, I noticed the other day I can turn on my HVAC blower with the ignition off, and key in my hand. The LED's for the AC and recirculate were also on. I have been checking it now frequently, and it is of course, one of those intermittent problems. Anyone else seen this? Is this a bad control unit? Could there be some grounding problem? Is this tied to some relay or something? All of the above?

Any help would be appreciated.

Thanks in advance!

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