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Fan speed switch not working.

Discussion in '2nd Gen. Tacomas (2005-2015)' started by kbmcmahon, Jan 17, 2010.

  1. Dec 3, 2012 at 9:25 PM
    #121
    MT_mudflaps

    MT_mudflaps Just playin' on the runways

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    Maybe I missed it, I tried scanning through everyone's posts, but did anyone have it where the fan speed did not work at all? :confused:
    Mine is inop regardless of whether you select heat or A.C. and it doesn't work at low, high or any speed.
    I'd sure appreciate any suggestions. :eek:
     
  2. Dec 4, 2012 at 6:54 AM
    #122
    Kenobe

    Kenobe Well-Known Member

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    Not a fan of that - that's going to tear up the connector eventually.

    I dabbed some electrical contact grease on a Q-Tip and slathered everything up inside the resistor connector pins. Works great now :)
     
  3. Dec 4, 2012 at 6:55 AM
    #123
    Kenobe

    Kenobe Well-Known Member

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    Fuse?
    Resistor completely blown?
    Blower motor dead?
     
  4. Dec 4, 2012 at 6:59 AM
    #124
    Sandman614

    Sandman614 Snarky TWSS elf, Travis #hotsavannahdotcom, LRGRNR

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    Check in that order too.
     
  5. Dec 9, 2012 at 12:11 PM
    #125
    Flugelhornjazz

    Flugelhornjazz '06 4.0L 4x4 6-sp MT Access

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    My 06 has just started doing the same thing. When I first start the truck, the fan runs for 30 seconds, shuts off, then starts up again. Now intermittently the fan will only run on HI. Tacorider, the purpose of the resistor is to divert voltage (and current) from the fan motor, giving the motor more than one speed.

    Tnx for the thread guys:cool. I have to get under there and replace the resistor so that the fan will be working this winter. COLD winters in New England! :cool:
     
  6. Dec 11, 2012 at 7:30 AM
    #126
    AnotherSilverTaco

    AnotherSilverTaco Well-Known Member

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    My fan quit working on all but high speed around 1-2 years ago. I took it out blew ou the dust from the brushes, up a dab of grease on the bearing and put it back together. It is still working! I would try this first before the resistor.
     
  7. Dec 14, 2012 at 9:16 PM
    #127
    Flugelhornjazz

    Flugelhornjazz '06 4.0L 4x4 6-sp MT Access

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    Tnx AST, makes sense to try the motor first. I will be very happy if your fix works and don't have to replace the resistor. :cool:
     
  8. Dec 14, 2012 at 9:25 PM
    #128
    Flugelhornjazz

    Flugelhornjazz '06 4.0L 4x4 6-sp MT Access

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    I believe the resistor is switched out of the circuit on Hi speed, so you may want to check the fuse first, bad fan motor second, then pull the resistor third.
     
  9. Dec 26, 2012 at 8:52 PM
    #129
    Chuy

    Chuy Well-Known Member

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  10. Dec 27, 2012 at 11:48 AM
    #130
    Sandman614

    Sandman614 Snarky TWSS elf, Travis #hotsavannahdotcom, LRGRNR

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  11. Jan 2, 2013 at 8:41 AM
    #131
    nausetnuts

    nausetnuts New Member

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    Based on all the previous replies/posts, I spoke to Toyota Dealer today....my blower/fan only works on high also. They gave me the TSB-0149-11 for the fix. There's a new resistor unit and a new connector that has to be crimped in. The Resistor old part number was 87138-04050, replaced by 87138-04052 and the pigtail is 82141-04M40. They have their own wire connectors with the part #82999-12030.
    I was quoted 52.53 shipped. Without connectors is 47.81 shipped.
    I've attached the TSB (hopefully)
     

    Attached Files:

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  12. Jan 2, 2013 at 9:39 AM
    #132
    Sandman614

    Sandman614 Snarky TWSS elf, Travis #hotsavannahdotcom, LRGRNR

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    Could you take a picture of the repaired wires?
     
  13. Jan 3, 2013 at 2:54 PM
    #133
    jakengle

    jakengle New Member

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    New to the forum today and when I came home from dealership I googled the part numbers from the repair to see what the deal was and found this thread. Fan worked only on high and I did not inspect the old parts--just dropped it off for the dealer to do it under the certified used warranty.

    Parts installed were:
    87138-04052 resistor
    82141-04M40 wire, instrument

    [​IMG]

    Can't see much about the splice but you can see the difference with the plug and resistor vs. the old parts in earlier posts.
     
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  14. Jan 15, 2013 at 10:06 AM
    #134
    Ran s Taco Stand

    Ran s Taco Stand Member

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    '06 Prerunner 2wd Access Cab 190099 miles and counting!! Stock, but still Bad-Ass!! '95 Tacoma 5speed 2wd 348,000 miles '98 4Runner SR5 Auto 2wd 329,000 miles '88 4Runner SR5 Auto 4wd 2??,??? miles on blocks for now
    Great thread! Like others, I have been plagued by the "high-or nothing" blower. Before if I wanted something other than high I would have to find the worst dirt road and drive fast thru the bumps and washboards to get it to work! If only for a few days. So I figured it was a loose connection, "somewhere", but where? Ahhh, so thats where...a stupid connection, by the passengers feet, nice!! In the winter its ok, but in the summer you sweat or freeze...at least it was blowing air! As for the fix, fortunately I have the burnt connector issue, as mentioned and illustrated above...so I followed the instructions as directed, and had success til I removed my hand from the connector, then no dice!. I had to take it 1 step further, and add a tooth pick in between the clip, so I could maintain connection. I'm sure folded cardboard would work too. Thanks so much!!
     
  15. Jan 15, 2013 at 11:25 AM
    #135
    Sandman614

    Sandman614 Snarky TWSS elf, Travis #hotsavannahdotcom, LRGRNR

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    :eek:
    I have posted a chevy connector (in one of these threads) that mouser.com sells for fairly cheap.
    Plug:
    Mouser #: 829-12129565-B
    Manufacturer Part #:12129565-B

    Pins:
    Mouser Part #: 829-12162597
    Manufacturer Part #:12162597


    CameraZOOM-20120725201111122_b67f26d02d4717780cca0e525ef0f61cbd6b9321.jpg
     
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  16. Jan 21, 2013 at 5:26 AM
    #136
    Gregman

    Gregman Well-Known Member

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    Thanks! That's what I've been looking for. :)
     
  17. Jan 22, 2013 at 2:56 PM
    #137
    kirklfp

    kirklfp New Member

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    2.7taco is right on for my situation (intermittent, and not cured by new resistor block)- the problem is in the harness at the connector to the resistor. Same as 2.7 reports -- 3rd pin. But I also noted that the resistor block has its 2 center pins intentionally shorted internally. So jumping between center 2 wires on harness side (I used a crimp on splice) provides the necessary connectivity by making the malfunctioning pin redundant.
     
  18. Jan 23, 2013 at 7:23 AM
    #138
    mlafferty00

    mlafferty00 Member

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    You da man! This will be my project for this weekend. :cool:
     
  19. Jan 28, 2013 at 5:16 AM
    #139
    Gregman

    Gregman Well-Known Member

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    So I finally got my new TSB blower motor resistor and pigtail installed and am happy to report that everything went great. The instal was easy and the fan now works as it should. Its nice to be done with that. Anyway, here's a few pictures for reference for anyone that needs to do this.

    This is what my defective resistor looked like. It has the typical burned look on the white with blue stripe wire. I replaced this resistor twice so this was the third one.
    2013-01-28007_52043bec18de9843ae99ccea686808cff4ff03f3.jpg

    new pigtail
    2013-01-28010_4f993c70f32174b5e336c15b3e3ca528604781ce.jpg

    new resistor
    2013-01-28013_08dd4e23888eea3c875c057993f5dd9617ec8b1f.jpg

    new resistor beside the old one
    2013-01-28014_5fc2a176337fad3d3b7559a07a1a6442ff74e7b1.jpg

    2013-01-28026_4c786fee3459db8d42942cffec390dc001a943b4.jpg

    Here are the old resistor pins. I had used some dielectric grease on them and you can see that there is a little bit of it remaining on them.
    2013-01-28015_37c4276db7acf84ad9d3551ef87490e86832b16e.jpg

    The pins in the new resistor appear to be thicker so they should make a better contact.
    2013-01-28016_04a5f1e1194a8231eaee17ba5e692258ab038580.jpg

    No turning back:
    2013-01-28028_6b78dc057ee57e12465f4bcbf59fd4562119d3f7.jpg

    And the new resistor is installed as per the TSB instructions. I don't like the crimps and electrical tape that they specified, it seems like a bit of a hack job. I will re-do this job when the weather is a bit nicer. I intend to solder the wires together and use heat shrink to seal it up - it will be a more secure and permanent repair. I was supprised that Toyota came up with the crimps and electrical tape as their official repair method.
    2013-01-28030_da746f9c5cb7a54566efce1ea7837bdb65e32f26.jpg
     
  20. Jan 28, 2013 at 11:48 AM
    #140
    JasonJump

    JasonJump Well-Known Member

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    I did exactly what you did for a fix, but now I am getting a humming noise like the fan is making a loud hummm when the air is running. What has happened to cause this? I did the crimps not solder
     
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