06 silverado blower motor

2006 CHEVROLET SILVERADO
100,000 MILES
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J.STIEG
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Fixing a blower motor on a 06 silverado and I was just wondering what wire goes through the variable ressistor, positive or ground.

If I ground the black wire fan/blower motor comes on.
Sep 17, 2012 at 6:21 PM
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SATURNTECH9
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So is the blower motor inop in all blower speeds?
Sep 17, 2012 at 6:32 PM
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J.STIEG
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Yes that is right, it does NOT work in any speed.
Sep 17, 2012 at 6:36 PM
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SATURNTECH9
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If you have the manual ac controls it has a power wire going to the blower motor resistor.So if you ground the blower motor does the blower work like normal with the blower motor switch?
Sep 17, 2012 at 7:24 PM
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J.STIEG
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Yes! That's what I said in first post.

Can I have A diagram please!!!
Sep 17, 2012 at 10:02 PM
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SATURNTECH9
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I was only trying to get all the facts sounds like you just have a bad ground easy fix.I think i have helped you before the user name looks familar.
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Sep 17, 2012 at 10:17 PM
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WRENCHTECH
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The resister supplies both power and ground so chances are you have a bad resister. http://i1198.photobucket.com/albums/aa448/Wrenchtech/122205886.gif
Sep 17, 2012 at 11:20 PM
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SATURNTECH9
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The diagram i found and posted shows the ground for the blower motor piggy backs off the ground control side of the blower motor relay.
Sep 18, 2012 at 12:17 AM
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WRENCHTECH
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That is all internal to the resister. The ground and power feed for the blower both come from withing the resister. The external ground wire grounds the resister.
Sep 18, 2012 at 12:20 AM
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WRENCHTECH
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The relay is also inside the resister.
Sep 18, 2012 at 12:21 AM
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SATURNTECH9
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The decated ground to relay should mean the the blower motor is always grounded no matter what.He said all the speeds work when he grounds it so I would make sure the ground to the relay/resistir is good.
Sep 18, 2012 at 2:10 AM
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WRENCHTECH
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You have to verify that the external ground belonging to the resister is actually good but beyond that, everything happens inside the resister. That grounds at the lip of the dashboard near the inside air intake, above the blower motor. http://i1198.photobucket.com/albums/aa448/Wrenchtech/120036452.gif http://i1198.photobucket.com/albums/aa448/Wrenchtech/122205886-1.gif
Sep 18, 2012 at 9:53 AM
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