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Need Master Switch Pinout

Discussion in 'Electrical' started by BrandonL812, Apr 16, 2025.

  1. Apr 16, 2025 at 1:05 PM
    #1
    BrandonL812

    BrandonL812 [OP] New Member

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    DD ss3 max led fogs. interior and exterior leds swapTRD Shift knob.
    I am having issue with the Master Switch on my ‘21 platinum. The button that control the driver’s window does not work. It does not lit up like the button for the passenger side. All other buttons work and can control all function. I’ve inspected the wiring for tear and found none from the switch side to inside the cab. All fuses are ok. None blown. I am trying to find the pinout for the master switch to see what wire is what. I’ve looked in the Sticky up top but cant seem to identify each wire.
    Trying to find out if my switch just die or something else upstream that is preventing the driver’s side button from getting power. When the button is not lit, there’s no power and the window doesn’t go down.
    Inspected the switch and see no burn mark.

    Any help is appreciated.

    IMG_4259.jpg IMG_4260.jpg
     
  2. Apr 16, 2025 at 2:42 PM
    #2
    Josue914

    Josue914 New Member

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    I attached an image of the master switch connector. The main pins/wires you will need to identify for your testing is #1(ground)-White w/black tracer #4(up)-Beige and #5(down)-Brown. The wire color may vary depending on your Tundra's production date but the pin location does not. With everything connected, Ignition on and your voltmeter hooked up to Pin 1 & 4, you should see battery voltage when pressing the switch up. When hooked up to 1 & 5 you should also see battery voltage when pressing the switch down. If you don't see this values you have a control side issue and will most likely be your master switch failing. If you do see those values your issue may be with the window motor
     

    Attached Files:

    TundyManFL and BrandonL812[OP] like this.
  3. Apr 16, 2025 at 2:46 PM
    #3
    BrandonL812

    BrandonL812 [OP] New Member

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    DD ss3 max led fogs. interior and exterior leds swapTRD Shift knob.
    Awesome. Thank you so much. I will test it tonight.
     
    Josue914[QUOTED] likes this.
  4. Apr 16, 2025 at 2:57 PM
    #4
    BubbaW

    BubbaW Blessed 2 B above Ground

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    EDIT.... @Josue914 gotcha taken care of

    Given they combined a few lower years with your 21, this should be the connector and pin out from EWD of N2 connector.

    N2.jpg

    2021 Drvr Window SW.jpg
     
    BrandonL812[OP] likes this.
  5. Apr 16, 2025 at 3:22 PM
    #5
    BrandonL812

    BrandonL812 [OP] New Member

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    DD ss3 max led fogs. interior and exterior leds swapTRD Shift knob.
    Thank you also
     
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  6. Apr 16, 2025 at 6:15 PM
    #6
    BrandonL812

    BrandonL812 [OP] New Member

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    DD ss3 max led fogs. interior and exterior leds swapTRD Shift knob.
    SOLVED!!!
    I AM a DUMBASS. I forgot to plug back in the regular motor plug. Covered it over with the Dynaliner and completely forgot about it. I kept seeing this plug hanging there and kept thinking, where the hell does this plug go? There is nothing on the door card for it.

    decided to watch a YouTube video on how to remove and replace the regulator motor and when it shows that plug. I slap my head. “IDIOT!! You forgot that plug”.

    all is good now.
    Thanks again for the help.
    IMG_4268.jpg IMG_4269.jpg
     
    Last edited: Apr 16, 2025
    HulkSmurf14, Josue914 and BubbaW like this.

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