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  1. #1

    Default defrost only no foot heat

    my 04 LT seems to be stuck on defrost even when i select the foot or face option any suggestions????

  2. #2


    i have checked all the fuses already they are ok , Im new to this electronic hvac so I really dont know where to go from here. thanx cw

  3. #3


    well after reading some posts on here i started exploring around under the driver side and just under the blower is a connector that is going to a module that must work the vent system after pushing on the connector to make sure it was tight and giving a little tap on the module I tried the vents and to my surprise everything works I have all the functions back. I know this may only be a temporary fix especially if the module is going bad but at least i know where to look next time.

  4. #4


    Hey, another satisfied customer! Didn't have to do anything, just let the search function work for us!

    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

    Remember: Search Before Posting | Fill out Your Profile & Signature
    * I've been saying for years that I was going to change my username, and I finally did.

  5. #5


    You got lucky. The driver's side is pretty easy to get to, but the passenger side requires removing the dash.

    99 K 1500 Suburban
    78 Silverado Big 10 w/factory 454
    00 S-10 Blazer
    1976 Trans Am
    1980 Honda CB900 Custom

  6. #6


    I didnt know there was one on that side too !!! I guess that must control the back huh .

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