06 Silverado blower motor

Tiny
J.STIEG
  • MEMBER
  • 2006 CHEVROLET SILVERADO
  • 100,000 MILES
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.
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Monday, September 17th, 2012 AT 6:21 PM

11 Replies

Tiny
SATURNTECH9
  • EXPERT
So is the blower motor inop in all blower speeds?
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Monday, September 17th, 2012 AT 6:32 PM
Tiny
J.STIEG
  • MEMBER
Yes that is right, it does NOT work in any speed.
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Monday, September 17th, 2012 AT 6:36 PM
Tiny
SATURNTECH9
  • EXPERT
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?
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Monday, September 17th, 2012 AT 7:24 PM
Tiny
J.STIEG
  • MEMBER
Yes! That's what I said in first post.

Can I have A diagram please!
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Monday, September 17th, 2012 AT 10:02 PM
Tiny
SATURNTECH9
  • EXPERT
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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Monday, September 17th, 2012 AT 10:17 PM
Tiny
WRENCHTECH
  • EXPERT
The resister supplies both power and ground so chances are you have a bad resister.

http://i1198.photobucket.com/albums/aa448/Wrenchtech/122205886.gif
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Monday, September 17th, 2012 AT 11:20 PM
Tiny
SATURNTECH9
  • EXPERT
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.
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Tuesday, September 18th, 2012 AT 12:17 AM
Tiny
WRENCHTECH
  • EXPERT
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.
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Tuesday, September 18th, 2012 AT 12:20 AM
Tiny
WRENCHTECH
  • EXPERT
The relay is also inside the resister.
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Tuesday, September 18th, 2012 AT 12:21 AM
Tiny
SATURNTECH9
  • EXPERT
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.
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Tuesday, September 18th, 2012 AT 2:10 AM
Tiny
WRENCHTECH
  • EXPERT
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
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Tuesday, September 18th, 2012 AT 9:53 AM

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