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2001 4runner - Replacing AC controls and ECT Illumination Bulbs **PICTURES**

Discussion in '3rd Gen 4Runners (1996-2002)' started by ramonortiz55, Jan 1, 2017.

  1. Jan 1, 2017 at 9:16 PM
    #1
    ramonortiz55

    ramonortiz55 [OP] New Member

    Joined:
    May 3, 2015
    Member:
    #590
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    Male
    First Name:
    Ramon
    Vehicle:
    2001 4runner limited silver millenium
    The illumination bulbs were out on my AC controls, ECT, rear window button, rear defroster, and power point.

    This is a write up on the step by step process I took to replace the bulbs.

    My research was done here: ***************************************************************************

    After reading thru those threads, I determined I needed the following part numbers. These are for a 2001 4runner, the bulbs for other 4runner generations might be different.

    2001 4runner limited climate control light bulbs:

    Part Number #81850-35050 - 2 Total
    Part Number #81850-35040 - 2 Total

    Hazard control light bulb:

    Part Number #84999-10860 - 1 Total

    ECT and Defroster light bulb:

    Part Number #90010-01041 - 1 Total

    Rear window roll down:

    Part Number #90010-01042 - 1 Total

    Cigarette lighter:

    Part Number #84999-10250 - 1 Total

    ***************************************************************************

    Ordered all my bulbs from Camelback Toyota:

    [​IMG]

    Removing the center console cup holder, this is done by tugging it off:

    [​IMG]

    [​IMG]

    Then removing the shifter surround:

    [​IMG]

    Next, the radio surround is removed, gently pry it away from the dash:

    [​IMG]

    Pull it out slowly to reveal the plugs by the ac vents:

    [​IMG]

    Unplug the power point plugs:

    [​IMG]

    [​IMG]

    Once the power point plug connector has been removed, locate the bulb - it is the gray end of the power point:

    [​IMG]

    Twist to remove:

    [​IMG]

    Next, I removed the hazard switch:

    [​IMG]

    This is done by releasing the side tabs:

    [​IMG]

    Next, I removed this portion:

    [​IMG]

    This is done by releasing tabs at the ends AND at the top center:

    [​IMG]

    [​IMG]

    Next I removed the AC controls faceplate, tabs are on top. This is very flimsy, so careful:

    [​IMG]

    [​IMG]

    I then removed the screws that hold in the AC control unit, disconnected the rear plugs and pulled it out:

    [​IMG]

    At this moment, I went ahead and installed the power point bulb:

    [​IMG]

    Time for some surgery. Hazard switch:

    [​IMG]

    Twist and pull out the bulb, replace with new one:

    [​IMG]

    Now the strip, this has two bulbs. One for defroster and ECT, another bulb for the rear window switch:

    [​IMG]

    A needle nose pliers will allow the removal of one of the bulbs.

    [​IMG]

    To remove the other, the backing must be removed, a small flat head screwdriver helps here. I then removed the other bulb and replaced it.

    [​IMG]

    Next step of the surgery was to open the front of the AC control unit. I removed two screws. FOUR tabs need to be released on the top and bottom. Forks or toothpicks help keeping tabs open while I worked on other tabs.

    [​IMG]

    [​IMG]

    [​IMG]

    Carefully opened the AC control unit..

    [​IMG]

    [​IMG]

    Bulbs removed and replaced:

    [​IMG]

    [​IMG]

    I then assembled the AC control unit together.

    Reinstalled everything back together.

    Finally have all my illumination working properly!
     
    Last edited: Jan 1, 2017
  2. Nov 2, 2020 at 10:24 AM
    #2
    2chains

    2chains New Member

    Joined:
    Jul 23, 2017
    Member:
    #4436
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    19
    Just looking to do this. Thanks for posting the pics!
     
  3. Nov 2, 2020 at 2:30 PM
    #3
    ramonortiz55

    ramonortiz55 [OP] New Member

    Joined:
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    Ramon
    Vehicle:
    2001 4runner limited silver millenium
    let us know if you have any questions!
     
  4. Jan 5, 2021 at 2:10 PM
    #4
    eagle_one_limited

    eagle_one_limited New Member

    Joined:
    Aug 26, 2020
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    #16351
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    Gender:
    Male
    First Name:
    Gonzo
    Los Angeles, CA
    Vehicle:
    2002 limited 4runner 2wd
    I'm looking to this on my 2002 4runner soon. Is there a color option on the bulbs?
     
  5. Jan 25, 2021 at 5:52 PM
    #5
    ramonortiz55

    ramonortiz55 [OP] New Member

    Joined:
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    Member:
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    Gender:
    Male
    First Name:
    Ramon
    Vehicle:
    2001 4runner limited silver millenium
    If its stock OEM light bulbs.. NO.

    If you upgrade to LEDs (aftermarket), yes.
     
  6. Jan 21, 2022 at 9:52 PM
    #6
    AntonioCm1983

    AntonioCm1983 New Member

    Joined:
    Dec 7, 2018
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    #7959
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    8
    Gender:
    Male
    First Name:
    Antonio
    AZ
    Vehicle:
    97 LTD 4runner, 99 LTD 4Runner, 00 Sr5 4Runner, 00 LTD 4Runner, 02 Sport 4Runner, 07 Sport 4runner V8, 05 Excursion V10,
    Headlights taillights led conversions cold air intake engine mods bigger pistons cams lift kits big tires tones more leds inside and out
    What an Amazing Walkthrough very much appreciated climate control bulbs all bad on mine been driving me nuts

     
  7. Feb 11, 2023 at 9:14 AM
    #7
    KT_2001limited

    KT_2001limited New Member

    Joined:
    Feb 11, 2023
    Member:
    #31201
    Messages:
    1
    Vehicle:
    2001 4Runner Limited
    Factory installed supercharger
    Just finding this thread and looking to do the same to my climate control. Any idea where to get aftermarket LEDs?
     
  8. Dec 22, 2023 at 8:54 PM
    #8
    xraydid

    xraydid New Member

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    Does anyone know the part number for the rear window light for LED from Amazon? I already replaced the climate control lights and they were T3 and T4.2. Got them from Amazon and they looks awesome! I just can’t find the LED for the rear window button light.
     
  9. Nov 17, 2024 at 9:53 PM
    #9
    ohyeahhhhhhhh

    ohyeahhhhhhhh New Member

    Joined:
    Aug 9, 2024
    Member:
    #42113
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    For the rear window light for LED, I use T3 from Amazon and it works :)
     

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