Question about 2005 Buick Rendezvous

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2005 Buick Rendezvous blower motor stopped working. Should have checked the voltage prior to getting a new one but what ever. Got a new one and a ne resistor mod. It still does not work. My meter says I have 12v on the plug to the blower. It does not change with the shifting positions on the control knob. Scratch head... The fan does not turn on...Hooked fan directly up to the battery and the fan spins. Google some more ... maybe my ground is bad. Back to the meter....no gound to chasis ground beeps out good....Look at the switch it's self and scratch head more....how on earth am I going to get to that? Help please. Oh and yes I checked all of the fuses. Thanks a bunch!

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  • jwebb50 Jan 06, 2011

    Got the parts and all fixed! Ya! Not bad for a girl! Yhanks again Jsmes for the help!

  • haylove022
    haylove022 Nov 01, 2012

    I have the same truble with my car turn it on and shack the wire,s at blower every time my blower stop,s shacking the wire connection and it coms back on the connectior gets hot .

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  • Master
  • 749 Answers

Would definitely check your grounds at the blower itself and the blower module.

2005 Buick Rendezvous blower motor stopped - jsmes1027_39.gif Here is the wiring diagram for the HVAC. If possible check the body control module for any codes that may have set using a scanner.

Posted on Jan 03, 2011

  • 4 more comments 
  • jwebb50 Jan 05, 2011

    Did that already. Finally got the nerve up to pull off the dash to get to the fan switch tonight.....The connector did NOT want to come off....finally got it off...found out why it was so hard to get off ....it was melted and 3 of the pins pulled out....I would gather this is bad. So off to NAPA at lunch to get the new parts (a new switch and a new connector) and get my car fixed. YA!

  • Jonathan S
    Jonathan S Jan 05, 2011

    You may want to order that pigtail from GM I have tried to get the aftermarket to no avail. Usually the melting occurs at the resistor or blower.

  • jwebb50 Jan 05, 2011

    Jsmes1027, should I disconnect the battery before I cut and strip the wires? I am not stupid enough to cut all of them at once but I would think I could cause more problems in other areas if any wires touch while I am stripping them. Thanks

  • Jonathan S
    Jonathan S Jan 05, 2011

    You can do that or just pull the fuse for the blower circuit.The diagram should tell you which one it is.

  • Jonathan S
    Jonathan S Jan 16, 2011

    Very nice going definitely wouldn't take any anything from you male or female.

  • Joel Richards Jul 05, 2011

    Hi JWebb50, I just googled your posting and I have had the exact same problem going on w/ my '06 rendezvous. I changed the resistor, the old one was had melted connection and I tested a new blower motor and the fuse keeps blowing. I figure I need to open up the dash like you did to check the switch now, I am hoping it is the same fan switch melted problem and I can get the parts at NAPA!! Thanks.

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