Question about 2006 Chevrolet Avalanche

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I have a 2006 Avalanche, the low, medium, high button on the climate control will not work. The only way I have any a/c or heat is when I am driving down the road it will blow on a low to medium setting, if I am in traffic it will not blow

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Sounds like the switch knob that you turn is no good replace switch

Posted on Aug 29, 2010

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Posted on Jan 02, 2017

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1 Answer

Climate control just work in high why.?


fan module it should be mounted with or on fan located up under dash behind glove box

Mar 31, 2013 | 1997 Buick Century

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1992 chevy C1500: Heat works on low speed, no medium, and high only works intermittantly.


On any other vehicle it sounds like the blower fan switch.
The fan switch provides power or ground to the resistor and there would be a high speed blower relay to bypass the resistor.
But in your case the fan switch is part of the controller.
I don't have a diagram for a 92 but the 94 model shows relays for low medium and high speeds. Each relay gets power from a fuseable link. The high relay gets power thru the low relay if the low relay is not engaged.
If you have the model with 3 relays you may need to check them.

Feb 01, 2013 | 1992 Chevrolet C1500

1 Answer

The fan in my 2002 GMC Savana cargo van doesn't work. I lost low, then medium speed, and finally the high speed.I checked the fuses and relays.I changed the blower resister, still no fan. The heat


Hi Jim, If the vehicle is fitted with climate control it will have electronic management. However it can be wired by someone knowing electrical circuitry to by pass the control. It will save you some cash but will need manual control. Make sure whoever does the job knows what he or she is doing. Have a happy new year. Regards John

Dec 31, 2012 | 2002 GMC Savana

2 Answers

2006 Chevy Avalanche climate control fan won't turn off. Even when the engine is off. I must remove the fuse to keep it from running.


Their is a relay/ fuse box under the hood thir is a relay that is probbly sticking corrison on the contacts inside is a commen problem remove the relay and try switching it with a twin relay that controls somethig else in the box and see if it shuts off the fan if so replace the relay avalible at most auto part stores.

May 22, 2009 | 2006 Chevrolet Avalanche

2 Answers

Climate Control malfunction


Sounds like a bad fan speed switch.

Apr 13, 2017 | 2006 Dodge Charger

1 Answer

Blower fan does not work on low or medium only on high. Lx model has auto climate control. wondering if it is blower motor, blower resister, or control (bad contacts). All buttons work on climate control....


Sounds like the problem is more with the blower motor assembly itself. The blower motor have micro-proccers built itnto them which comunicate with the control heads and do the actual regulating of the fan motor. Dealers have computers with diagnostic software which allows them to monitor what is happening in the eletronic controls of the vehicle. Electronic diagnostics without the diagnostic software makes it very diffecult to pinpoint the actual item causing the problem.

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2005 Avalanche Cranking/Climate Control problems


DISCONNECT THE ECU FUSE FROM YOUR FUSE BOX. WAIT 15 SECS AND THEN RECONNECT AND START YOUR VEHICLE.

Aug 24, 2008 | 2005 Chevrolet Avalanche

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