Question about Saturn Vue

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2006 VUE interior fan HVAC stopped working .... fuses, relay switch and resistor checked ok no power to fan switch

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  • batkwn Sep 14, 2009

    Thanks, I wasn't clear enough in question ...... no power to the fan through the fuse in interior box and main fuse under hood is OK .... thanks, Ken

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  • Master
  • 333 Answers

It is normal to not have power to the fan switch. The fan in this system has constant power and switched ground via the blower switch. If you do not have ground at the switch, then that is a problem.
Apply ground at pin 1 of the blower switch connector to verify the system works. If it does, you have either a bad switch or a bad ground before the switch. If it does not work you have either a bad fuse, resistor, relay, or blower.

Did you check the HVAC blower fuse that is under the hood? It is a 40A fuse.

Posted on Sep 14, 2009

  • Superbovine Sep 14, 2009

    No problem :)
    Do you have power behind the fuse under the hood? There is only one junction between it and the fan, so if you have nothing at the fan and 12+ at the fuse, you have a disconnect in the wire or a broken harness.

  • Superbovine Sep 14, 2009

    In the meantime here is the schematic so you can see what I mean.

    The C200 connector is the junction between the dash harness and the engine bay harness, located down by the pedals.

    Click the link, as it is too large to hose here.

    http://img178.imageshack.us/img178/9118/...


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  • Master
  • 1,011 Answers

Hello there is a HVAC relay and a fuse 10amp located behind the center of the dash. These supply power to the HVAC unit and switch.The 40 amp fuse under the hood is for the blower motor it self.The inside fuse panel is located pass4enger side of the center council The brown wire going into the switch is the power supply that comes from the HVAC relay behind the center of the dash if there is no power there then you will have to trace it back to that relay or the 10amp fuse located in the same fuse box i hope this helped :)

Posted on Sep 12, 2009

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