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06 rear blower won’t cut off with ignition

Discussion in '2nd Gen - 2003 - 2006' started by Roindhouse, Jun 29, 2020.

  1. Roindhouse

    Roindhouse New Member

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    I’ve got a couple problems all of a sudden with my 06 expy limited with electronic front temp control

    the front blower only works on high, which my Google fu tells me is the blower control module

    but here’s the weird one:
    the rear blower speed control works ok, but the blower will not shut off when you turn the ignition off

    it has to be switched off at the control on the ceiling
     
  2. BlackCoffee

    BlackCoffee Well-Known Member

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    I remember a few years ago, I had the same problem with the front blower speed control. It was a $78.00 relay that is behind the glove box. Didn't take long. If you need more info, I might be able to find it in the shop manual.

    I'll pull the wiring diagram on the aux blower and see if I can find something.

    I pulled the wiring diagram. It appears there is a rear blower motor relay similar to the front blower speed control. If the relay fails closed, it would create the problem. According to the wiring diagram, it is feed with a line that is "Hot all the time."
     
    Last edited: Jul 1, 2020 at 3:18 PM
  3. BlackCoffee

    BlackCoffee Well-Known Member

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    Here is the diagram.
     

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  4. Roindhouse

    Roindhouse New Member

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    thanks
    i figured its gotta be a relay stuck in the "on" position which seems like a fire hazard to me.


    any idea where this relay is located?

    I got a used front blower module at a junkyard for $25 and cured that.

    does the rear one have a module?
     
  5. Hamfisted

    Hamfisted Full Access Members

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    The Aux relay box is located behind the trim panel and just in front of the right rear tire hump. Forward of the rear HVAC box itself.
     

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    BlackCoffee and riphip like this.

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