2006 Chevy Trailblazer blower doesnt work

Tiny
CCUNEO
  • MEMBER
  • 2006 CHEVROLET TRAILBLAZER
Electrical problem
2006 Chevy Trailblazer 6 cyl Four Wheel Drive Automatic 42k miles

I know the hi blower fan is usually controlled/protected by a seperate fuse or fusible link. My glove box manual makes no reference to this. Where can I find the fuse/fusible link/relay etc that controls the hi blower.
Thx Cory
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Friday, February 6th, 2009 AT 2:25 PM

5 Replies

Tiny
OBXAUTOMEDIC
  • EXPERT
Hi Cory,

The Blower Relay should be located in the Under Hood fuse block.

Also, it usually work the other way around and the only fan speed that works would be the High. However, have you check out the Blower Motor Resistor? It is located under the passenger dash in the duct work near the blower motor.

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Friday, February 6th, 2009 AT 2:45 PM
Tiny
CCUNEO
  • MEMBER
So your saying there is no seperate fuse protecting the hi blower? Seen that for years on GM cars. How exactly do I check out the resistor? Any chance of a pic?
Thx Cory
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Friday, February 6th, 2009 AT 3:19 PM
Tiny
OBXAUTOMEDIC
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Here is the test proceedure.....

You can press your "ctrl" key and the "+" key to zoom in to see if you can read it any better. if you can't let me know and I will email the pics to you...


http://www.2carpros.com/forum/automotive_pictures/188069_2006trailblazerblowertests_1.jpg




http://www.2carpros.com/forum/automotive_pictures/188069_2006trailblazerblowertests2_1.jpg




http://www.2carpros.com/forum/automotive_pictures/188069_2006trailblazerblowertests3_1.jpg



Here is a pic of the resistor location...


http://www.2carpros.com/forum/automotive_pictures/188069_06trailblazerblowerresistor_1.jpg



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Saturday, February 7th, 2009 AT 8:04 PM
Tiny
CCUNEO
  • MEMBER
OK,
had a warm day today so I decided to test things according to the info in the last post. It turns out if I "jiggle" the multi wire plug that goes into the resistor assembly the hi blower comes on. Doesnt appear to be one of the wires going into the plug but the assembly itself. Can that assembly be replaced by itself or does the whole blower motor have to be changed?
Cory
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Monday, February 9th, 2009 AT 1:19 PM
Tiny
OBXAUTOMEDIC
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You can replace just the blower resistor there should be only 2 screws holding it in.... here is a pic of the resistor...


http://www.2carpros.com/forum/automotive_pictures/188069_06trailblazerblowerresistor_2.jpg



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Monday, February 9th, 2009 AT 2:38 PM

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