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Has anyone come up with a permanent fix for fan resistor?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Crosis, Aug 29, 2019.

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  1. Aug 29, 2019 at 5:02 PM
    #1
    Crosis

    #1
    Crosis [OP] Tertiary adjunct to unimatrix 01

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    my A/C fan once again only runs on high. This will be my 5th time replacing the resistor. It’s getting old. Has anyone come up with a permanent fix yet?
     
    Crosis, Aug 29, 2019
    #1
  2. Aug 29, 2019 at 7:58 PM
    #2
    badger

    #2
    badger Well-Known Member

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    Curious. Are you running the latest version from Toyota? Mine burned out and I installed the new version. No issues now for at least 50,000 miles
     
    badger, Aug 29, 2019
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    PzTank and TacomaSport86 like this.
  3. Aug 29, 2019 at 8:00 PM
    #3
    TacomaSport86

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    TacomaSport86 2010 Tacoma/2016 4Runner Pro

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    Same here, actually the dealer replaced mine under warranty or tsb aBout 100,000 miles ago. Zero issues since.
     
    TacomaSport86, Aug 29, 2019
    #3
  4. Aug 29, 2019 at 8:22 PM
    #4
    Torspd

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    Torspd Tor-nication

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    Did you splice in the new plug that should come with the digital resistor?
     
    Torspd, Aug 29, 2019
    #4
  5. Aug 30, 2019 at 6:37 AM
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    Fullboogie

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    Fullboogie Well-Known Member

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    ^^^ This. Just replaced the whole setup in my newly-acquired '06 last night and the plug was melted in the usual spot.
     
    Fullboogie, Aug 30, 2019
    #5
  6. Aug 30, 2019 at 6:51 AM
    #6
    Larzzzz

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    Larzzzz Grande' Ricardo

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    ^^^what they said.
     
    Larzzzz, Aug 30, 2019
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  7. Aug 30, 2019 at 6:55 AM
    #7
    Torspd

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    Torspd Tor-nication

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    ^^^Those guys know something!
     
    Torspd, Aug 30, 2019
    #7
    Larzzzz likes this.
  8. Aug 30, 2019 at 10:31 AM
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    Fullboogie

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    Fullboogie Well-Known Member

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    ^^^ He knows more!
     
    Fullboogie, Aug 30, 2019
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  9. Aug 30, 2019 at 10:50 AM
    #9
    Muddinfun

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    Muddinfun Well-Known Member

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    Muddinfun, Aug 30, 2019
    #9
    JGO likes this.
  10. Aug 30, 2019 at 10:54 AM
    #10
    Thyces

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    Thyces 2 seater taco

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    Part numbers for the updated one?
     
    Thyces, Aug 30, 2019
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  11. Aug 30, 2019 at 11:57 AM
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    Fullboogie

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    Fullboogie Well-Known Member

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    Fullboogie, Aug 30, 2019
    #11
    Crosis[OP] likes this.
  12. Aug 30, 2019 at 12:16 PM
    #12
    Corny Taco

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    Corny Taco The Sauce

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    Thank the lord for this thread
     
    Corny Taco, Aug 30, 2019
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  13. Aug 30, 2019 at 12:34 PM
    #13
    12TRDTacoma

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    12TRDTacoma Powered by Ford, GM, VW, and Mercedes

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    Boosted
    For those replacing their resistors and blower motors...

    There are multiple ways of tackling this issue as there are a combination of things contributing to the issue.

    When installing the new resistor and blower motor and even replacing plugs it is wise to tweak the main pins where the resistor contacts the plug. The pins will appear like this initially - - - - you need to tweak them sideways like / / / / (not as extreme because the plug won't fit back in like that, but it is more for visually demonstrative purposes) that will handle the loose connection causing high resistance issue. I would also highly suggest doing the same to the 12V full unresisted pin at the main plug behind the HVAC climate control.

    Next, it would be wise if you slip some dielectric grease on each pin so the plug is no longer dry, do this both at the resistor and at the HVAC climate control unit.

    The death of these parts are due to poor connections and high heat due to those poor connections over a long period of time. By improving the connections and making them a tighter fit and removing the dry factor from them you will be in a much better position to enjoy a trouble free system for years to come.
     
    12TRDTacoma, Aug 30, 2019
    #13
    Crosis[OP] and NAAC3TACO like this.
  14. Aug 30, 2019 at 12:49 PM
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    Fullboogie

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    Fullboogie Well-Known Member

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    You will want to use conductive grease, not dialectric - that's not conductive. But good advice to pay attention to that.
     
    Fullboogie, Aug 30, 2019
    #14
  15. Aug 30, 2019 at 1:26 PM
    #15
    Clavin

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    Clavin Well-Known Member

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    All good to know. Im about to replace mine. thanks
     
    Clavin, Aug 30, 2019
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  16. Aug 30, 2019 at 2:52 PM
    #16
    CurtB

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    CurtB Old Timer knowitall

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    Ever wonder why auto makers don't use dielectric grease?
    Because they know what the 'di' part means.
     
    CurtB, Aug 30, 2019
    #16
    Jimmyh likes this.
  17. Aug 30, 2019 at 3:33 PM
    #17
    BadDogMax

    #17
    BadDogMax Well-Known Member

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    I soldered a bypass wire around the burned pin. Crude compared to the new connector solution, but it has not failed since. Still on original resistor from 2005.
     
    BadDogMax, Aug 30, 2019
    #17
  18. Aug 31, 2019 at 12:30 PM
    #18
    muddog321

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    muddog321 Well-Known Member

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    A few days ago my 2009 only had high fan speed so shook it and had more but could see burns.
    Ordered the
    $19 Dorman 973-582 HVAC Blower Motor Resistor Kit Compatible with Select Toyota Models
    Dorman 973-582 from Amazon and just put it in.
    5.5 mm = 7/32 in for you old school tool guys.
    Connector was an easy install with following:
    A = Green with yellow stripe
    B = Blue
    C = White with thin blue strip
    D = White with thicker black strip
    New connector was correctly labeled A-D and nice heavy gauge wires.
    Butt connectors are heat shrink and looked like about a 3/8 in strip fix the connectors.
    If the pics online confuse anyone the connector points down as well as the screws and that back one was easy by folding 3-4 inches of the carpet down.

    Result: New resistor was crap only had high still and pins B+C were pinned together. Old resistor was not pinned together and still worked fine with no burning anywhere.
    Should have bought the connector alone but as its Amazon no problems just return the resistor for refund as defective.
    Blower has all speeds now so good to go.
     
    muddog321, Aug 31, 2019
    #18
  19. Sep 2, 2019 at 12:10 PM
    #19
    Trikster

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    Trikster Well-Known Member

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    Anyone have any pictures of this? Mine just went. Only have full blast.
     
    Trikster, Sep 2, 2019
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  20. Sep 2, 2019 at 12:11 PM
    #20
    Trikster

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    Trikster Well-Known Member

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    So it’s not necessarily the resistor that’s bad, but the connector?
     
    Trikster, Sep 2, 2019
    #20
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Dorman 973-582 HVAC Blower Motor Resistor Kit Compatible with Select Toyota Models
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