Question about Chevrolet TrailBlazer EXT

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2003 chevy trailblazer rear blower won't shut off

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: 2003 Trailblazer A/C blower won't shut off

Replaced the control module

Posted on Jun 07, 2008

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  • 16 Answers

SOURCE: Blower control module

There should be a relay for that blower. sounds like the relay is stuck. see if you can find out where it is and replace it. You should find that info in a service manual for that vehicle. hope this helps: )

Posted on Jan 17, 2009

  • 507 Answers

SOURCE: 2003 chevy tahoe no rear heat

I know the earlier tahoe's have two heater lines running from the engine compartment to the rear under the vechile. Those lines could be clogged or pinched shut. What you do is get two hose locking pliers. Go under your truck, they are two metal lines that turn into rubber and back into metal again farther down the line. First, checked for pinched lines. If none, find where the rubber hoses are, clamp them off, remove from metal lines and drain. Use garden hose to flush fresh water through. When water comes through at high pressure and pretty clear, it should be done. Reconnect hoses, top off radiator fluid and it should be fine.

Posted on Feb 21, 2009

  • 109 Answers

SOURCE: 2003 Chevy Trailblazer my AC blower won't turn off!

you have a short to power which will cause it to stay on constantly check your blower motor resistor pack to ensure that it is working and check the wires going to the blower to make sure you have a power and a ground

Posted on Jun 29, 2009

  • 1 Answer

SOURCE: replace low beam headlight on 2003 chevy trailblazer

I just replaced the low-beam bulb on my 2003 Chevy Trailblazer. The grill just needs to be loosed slightly. Then, raise two L shaped brackets, one on each side. For the inside one, I needed to use a flathead screwdriver to get to it. The light assembly can then be pulled out. Remove the rubber cover and rotate the bulb one quarter turn left to release it. Pull out the bulb, replace with a new one ($11.50) from Advance Auto Parts, and reverse the process. Once I figured it out, took about 10 minutes total.

Posted on Nov 06, 2009

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2 Answers

I have a 95 Buick Roadmaster D blower motor will not shut off even if the key is out


sounds like a blower motor relay or control module. have it check first with your mechanic as the part for your car is expensive. goodluck

Mar 28, 2017 | Buick Cars & Trucks

1 Answer

Abslight stays on. How to fix? This is a2007trailblazer?


First you need to have EBCM - electronic brake control module check for DTC'S - diagnostic trouble code's . If the light is on there is a code stored . I think most part stores can do this and for free . After you find out what code is stored , looking up that code in service repair information for diagnostic trouble shooting chart would be next step . There are a few codes too.
DTC C0035 or C0040
DTC C0045 or C0050
DTC C0110
DTC C0131
DTC C0161
DTC C0186
DTC C0196
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DTC C0241 or P0856
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DTC C0245
DTC C0283
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DTC C0290 or C0292
DTC C0455
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Find the code do the diagnostic's , fix the problem , wiring issue's , a sensor , bad module ,what ever it is . The light will go out then . Here is a sample of code discription .
• DTC C0035 Left Front Wheel Speed Sensor Circuit
• DTC C0040 Right Front Wheel Speed Sensor Circuit

Dec 30, 2016 | 2007 Chevrolet Trailblazer

1 Answer

Heater blower not working on my 2007 buick lucerne. Is it a fuse?


Could be ! could also be the blower motor is bad or blower motor control module .
Does you buick have manual or automatic climate control ? There is a fuse box under the rear seat ,that is where fuse is for blower motor .HVAC BLWR fuse 40 amp. Chevy Trailblazer EXT Blower Motor Won Turn Off

Dec 20, 2016 | 2007 Buick Lucerne

1 Answer

2003 Chevy TrailBlazer..bad rattling under truck and feet.


It could be a bad rear blower motor, or resistor? theres a lot under the truck that could make noise, have a repair shop check it and make repairs.

May 13, 2010 | 2003 Chevrolet TrailBlazer

3 Answers

2003 Chevy Trailblazer AC won't turn off


Check on and off switch it may be defective.

Jun 29, 2009 | 2000 Chevrolet Impala

2 Answers

2003 Chevy Trailblazer my AC blower won't turn off!


you have a short to power which will cause it to stay on constantly check your blower motor resistor pack to ensure that it is working and check the wires going to the blower to make sure you have a power and a ground

Jun 29, 2009 | 2004 Chevrolet TrailBlazer

2 Answers

2003 Chevy Trailblazer - Rear Heat/AC Controls Don't Work


Sorry, I don't have an answer, but have the same problem. Did you ever figure out what was wrong?

Apr 16, 2009 | 2003 Chevrolet Tahoe

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