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Auto Dim Mirror wiring

Discussion in '3rd Gen. Tacomas (2016-2023)' started by AWilder, Jan 28, 2025.

  1. Jan 28, 2025 at 2:25 PM
    #1
    AWilder

    AWilder [OP] Member

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    2016 SR5 Crew Cab V6 XP edition
    bed cover, bed step
    Guys, I'm stuck and frustrated.
    I got my mirror from Bobs, Gentex Auto Dim Homelink V4 for non-prewired 3rd gen. Great team at Bobs, but they are unable to help.

    According to Bobs, these are the pins in the driver side pillar cable used to connect the wiring harness.
    Pin 1 ground connects to the Black wiring wire
    Pin 13 Ignition hot connects to the Black/White wire
    Pin 14 Always hot connects to the Black/orange wire

    I have 12 V power until I connect the cable. When I connect my Black/White wire to Pin 13 it shorts out. No power.
    Can anyone provide help?
     
  2. Jan 29, 2025 at 7:09 AM
    #2
    Nirango kid

    Nirango kid Well-Known Member

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    Not sure but maybe your truck is not wired for a auto dim homelink mirror as I think it is a option on some models. I have it in my 2021 Premium Package with the garage opener and it works great.
     
  3. Jan 29, 2025 at 8:35 AM
    #3
    AWilder

    AWilder [OP] Member

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    2016 SR5 Crew Cab V6 XP edition
    bed cover, bed step
    upload_2025-1-29_10-32-33.png
    2016+ TACOMA MIRROR WIRING INFORMATION – YOU MAY BE ABLE TO FIND YOUR WIRING CONNECTIONS HERE: OEM MIRROR WIRING RUNS THRU THIS 25 PIN CONNECTOR IN THE DRIVER’S SIDE A PILLAR. PIN 1 IS GROUND, PIN 13 IS IGNITION, PIN 14 IS CONSTANT HOT (CONSTANT HOT ONLY USED ON HOMELINK MIRRORS)

    My truck is not prewired. I only have the day/night mirror. That's why I bought the set up for the non prewired. Can anyone verify this is the correct wiring?
     
  4. Jan 29, 2025 at 12:27 PM
    #4
    caribe makaira

    caribe makaira Well-Known Member

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    05 PreRunner TRD Offroad AutoTrans
    Hood Struts, My version Fogs always ON, Map & Overhead Light Mod,
  5. Jan 29, 2025 at 1:22 PM
    #5
    AWilder

    AWilder [OP] Member

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    Female
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    2016 SR5 Crew Cab V6 XP edition
    bed cover, bed step
    upload_2025-1-29_15-19-50.jpg I have power at the connectors. When I connect the mirror harness to Pin 13 the power drops out.
     
  6. Jan 29, 2025 at 1:27 PM
    #6
    caribe makaira

    caribe makaira Well-Known Member

    Joined:
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    Male
    Caribbean, Puerto Rico
    Vehicle:
    05 PreRunner TRD Offroad AutoTrans
    Hood Struts, My version Fogs always ON, Map & Overhead Light Mod,
    Maybe the wires of the mirror are not good/correct.
     

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