Question about 2002 GMC Envoy

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Envoy a/c fan switch problem

2006 Gmc Envoy Fan switch 5 setting not working.

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The fan motor needs a new relay its a harness under the dash pretty simple to replace

Posted on Jul 03, 2009

  • rider_raymon Aug 04, 2011

    I looked under the dash for the fan relay and still have not found it.

  • rider_raymon Aug 04, 2011

    I looked under the dash for the fan relay and still have not found it.

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2 Answers

Fan switch not working


Check for power at the fan motor.

Aug 29, 2012 | 2006 GMC Envoy

1 Answer

2006 GMC Envoy I6 HVAC fan stopped working. Level 5 stopped about 6-months ago and now it doesn't work at all. I checked all fuses and the cooling fan relay but still not working.


If high speed went out first, then it is the switch.
There is the most arcing in the switch at high speed.
If there was motor or relay trouble, it would effect all speeds.
If there were problems with the ballast resistor, it would effect lower speeds.

Aug 07, 2010 | 2006 GMC Envoy

1 Answer

2006 slt gmc envoy ac problems vent controls anbd


{: ) The popping sound you heard is caused by the sudden movement of an HVAC door, most probably coming from the recirculation door actuator (right dashboard area) or the mode actuator( mid dashboard area). The fan outputs could be normally working, but is being muffled by the incorrect positioning of the HVAC doors, giving an impression that there is fault in the blower controls. In other words, your vehicle is having an air distribution issue.
If there's no conflict in your climate settings, then the trouble may be in the HVAC doors binding or broken, or the actuators faulty or sticking. In both cases, servicing may involve removal of the dashboard to access these HVAC components.

Jul 20, 2010 | 2006 GMC Envoy

1 Answer

I have a 2006 Envoy. The fan has quit working on


the fan resister is bad. its a simple fix, buy the part so you know what your dealing with

Dec 10, 2009 | 2006 GMC Envoy

2 Answers

I have a service engine soon light and the code that appeared when check is 1481, do you know what this means?


Service Engine Soon (SES) or Check Engine Light On, DTC P0480, P0526/P1481/P1484 Set (Replace Engine Cooling Fan Wiring Harness) #05-06-02-012B - (10/19/2006)

Models:2004-2006 Buick Rainier
2002-2006 Chevrolet TrailBlazer, TrailBlazer EXT
2002-2006 GMC Envoy, Envoy XL, 

Some customers may comment that the Service Engine Soon (SES) or Check Engine light is illuminated. This condition may be intermittent and upon investigation, the technician may find either DTC P0480, P0526, P1481 or P1484 set.

This condition may be caused by the cooling fan harness chaffing against the plastic guide it routes through. This contact may damage the insulation of the wires enclosed in that harness.

Replace the wire harness: 
Part Number 89024920 Description Harness Assembly, Engine Cooling Fan Wiring

Good luck and keep me posed. 

Aug 11, 2009 | 2003 GMC Envoy

1 Answer

2006 GMC Envoy and the A/C fan wont work in number 5 position


replace the resistor 4 the blower motor that should slove that hope this helps

Mar 05, 2009 | GMC Envoy XL Cars & Trucks

2 Answers

Blower dosent blow on high


fan blower speed switch under hood usually in fire wall or in heater box under dash area if you do not change it you will keep losing all your speeds until nothing left! it is not!!!!the one in your dash that you hand operate! hope this helps.John

Jan 24, 2009 | 2006 GMC Envoy

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