Question about 2005 Chevrolet Suburban

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Where is the relay and resistor for the REAR blower motor located on a 1995 GMC Suburban. First it wouldn't cut off, ran even when the switch was off. Now it will not run at all.

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  • Stephen Morris Apr 11, 2011

    Does the resistor and relay you refer to behind the dash control the REAR blower? The diagram link shows the rear relays but it references 1 & 2 on the list but on the diagram I only see 3,4 & 5. Is part of tyhe diagram cut off?

  • Stephen Morris Apr 11, 2011

    I have the full diagram now but it is too small for me to read.How can I get it larger so I can see it?



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The blower motor resistor is located on passenger side.Its located on the top of black plastic housing,you have to remove the glove box and dash, this will give access to blower motor resistor. Pull door off glove box unscrew plate on top of heat box, disconnected relay and disconnect two other connectors .There you will see resistor.Fitted with two bolts.But resistor will not come out easily, you will not have enough room to get it out.In that case, the dash panel has to be removed.This will give proper space to remove and lf the resistor.The relay is on that panel itself.To see the fig of both relay as well as resistor.Please click the link below:----- ----------------- This should help.Thanks.Helpmech.

Posted on Apr 11, 2011

  • 1 more comment 
  • raj somaiya Apr 11, 2011

    yes correct.

    See fig below:---

    This is full image.That image was getting cut, so you were not able to see the parts pointing 1 and 2.


    This will help.Thanks.Helpmech.

  • raj somaiya Apr 11, 2011

    Part one the lower side is heater and ac module and part two the upper one is blower resistor.

  • raj somaiya Apr 11, 2011

    Just click on this link for bigger view of the image:---


    This should help.Thanks.Helpmech



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i assume your talking about the blower motor resistor
actually on this model they dont use a resistor they use 3 relays which are behind the glove box open glove box door squeeze top of door and pull out then u will see the relays

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It sounds like your blower motor may be bad. I don't know if you know how to check power at your blower motor plug, but you can use a volt/ohm meter or a test light. If you have power (12VDC) , your motor is most likely bad. There is also a resistor block module which has 2 resistors on it. It controls the motor speed basically by restricting the power by directing it thru one of the resistors. The higher the resistance, the slower the motor turns, thus the 3 speeds for the motor. The resistor module is mounted on the blower housing and has 2 screws holding it in with a small plug connected. It is just about straight ahead of the passengers left knee.
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