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BSM and OEM Tow Mirror Mod

Discussion in '3rd Gen Tundras (2014+)' started by dumbassdave, Jan 30, 2019.

  1. Jan 30, 2019 at 8:28 AM
    #1
    dumbassdave

    dumbassdave [OP] Member

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    First off, I give credit to Safety77 on Tundratalk as it was his post that got me all set with this. If you have OEM tow mirrors, it is very easy to retain your BSM functionality. The picture with the safety pins shows the wires for the BSM light. Add a LED to your sail panel and you are all set. I used bullet crimps so I could disconnect in the future and also allow me to easily swap the wires in case I got the polarity wrong.

    Video: https://drive.google.com/file/d/1iSi3IhWsiSW2lAmEdcDldF261rTd6vKe/view?usp=sharing

     
    polox40, jessenavarro, cantle and 3 others like this.
  2. Jan 30, 2019 at 8:41 AM
    #2
    tinman10101

    tinman10101 Ah cha cha cha

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    That is a great MOD!!! Thank you for this. Kinda wanna put an LED this big when just in case the significant other decides to drive the Tundra .... LOL!

    led.jpg
     
    040Tundra and dumbassdave [OP] like this.
  3. Jan 30, 2019 at 9:00 AM
    #3
    dumbassdave

    dumbassdave [OP] Member

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    There would be no mistaking that signal!
     
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  4. Jan 30, 2019 at 9:08 AM
    #4
    Harpo

    Harpo New Member

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    BAD, does RCTA still work with this modification? It looks good to go, but please keep us updated on how it works in the real driving conditions.
     
  5. Jan 30, 2019 at 9:16 AM
    #5
    dumbassdave

    dumbassdave [OP] Member

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    I'd assume so as all that was done was to cut the wires that went to the LED in the mirror and relocated them inside. I'll certainly update if I notice anything out of the ordinary.
     
  6. Jan 30, 2019 at 1:03 PM
    #6
    040Tundra

    040Tundra El Chapo

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    A little of this and a little of that.
    Great mod. I plan to get some tow mirrors w/ blind spot from www.1aauto.com they have them right now for around $250
     
  7. Feb 20, 2019 at 9:31 PM
    #7
    mac10tuna

    mac10tuna New Member

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    I’ve been leaning towards doing this mod myself.
    Exactly which wires did you cut?
    I know you have the photo, but I didn’t follow exactly which 2 in the pic they were.

    Thanks.
     
  8. Feb 20, 2019 at 9:41 PM
    #8
    dumbassdave

    dumbassdave [OP] Member

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    Its a bit tricky to see in the picture, but looking at the plug from the inside (which is the pic I have there), its the top right wire and on the bottom row its the 5th wire in. Sorry I can't say for sure what the wire colors were. You can always test before hand (like I did before I did any cutting) with some safety pins pushed into the connector to be sure that the LED comes on. Turn ignition on and BSM lights go on for a bit. After that you can just press BSM button on and off to trigger lights. If light doesn't go on, just switch the wires on the LED.
     
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  9. May 14, 2019 at 12:20 PM
    #9
    Gixxertek

    Gixxertek New Member

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    So is this your 2016 listed in profile? Only asking because after installing Toyota tow mirrors(which i knew would not have BSM) now getting malfunction showing for it. Cheers.
     
  10. May 14, 2019 at 12:35 PM
    #10
    dumbassdave

    dumbassdave [OP] Member

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    Yup, on my 2016. You are getting the error because the system is sensing that there are no lights coming on. Since the light was in the original mirror, and now you have none, you'd need to wire in some lights as I did and then the error will go away. It's really not a big job at all to put a couple of LEDs in there and mount them in the sails.
     
  11. May 14, 2019 at 12:36 PM
    #11
    dumbassdave

    dumbassdave [OP] Member

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    Yes, RCTA is totally unaffected by this mod.
     
  12. May 14, 2019 at 1:09 PM
    #12
    Gixxertek

    Gixxertek New Member

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    Thanx. I run a motorcycle shop so I am fluent in LED. I'll play around and see if I can get it sorted. I hadn't seen anybody on the write up talking about.
     
    Last edited: May 14, 2019
  13. May 14, 2019 at 3:33 PM
    #13
    dumbassdave

    dumbassdave [OP] Member

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    You'll be good to go then!
     
  14. May 15, 2019 at 4:17 AM
    #14
    dugfur

    dugfur New Member

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    I'm a little confused...…….so you just tie into the 2 wires shown with an LED light?
     
  15. May 15, 2019 at 6:08 AM
    #15
    dumbassdave

    dumbassdave [OP] Member

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    Sure do. It's the two wires that fed the light in the non tow mirror. If there is no light connected, you get system error, if you have bsm turned on.
     
  16. May 15, 2019 at 11:26 AM
    #16
    JoeJob

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    I had to do this exact thing on my '18 Limited when I did the power folding mirror mod. I got a pair of mirrors from a '12 limited, but they don't have BSM. I just installed LEDs in the sails and it works great, both for BSM and RCTA.
     
  17. May 16, 2019 at 9:01 PM
    #17
    Gixxertek

    Gixxertek New Member

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    Weird question but... Just installed the Toyota tow mirrors. The mirrors are uneven in distance from doors. Passenger side is swept back further. Anybody else seen this.
     
  18. May 16, 2019 at 9:26 PM
    #18
    dumbassdave

    dumbassdave [OP] Member

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    If I remember correctly, it's a bit tight getting all 3 screws in. I'd undo, give it a good shove and put the nuts back on.
     
  19. May 16, 2019 at 9:30 PM
    #19
    Gixxertek

    Gixxertek New Member

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    I didn't see anything under the search feature. I will double check my install when I install the BSM led to correct the "malfunction"
     
  20. May 19, 2019 at 3:51 PM
    #20
    gbatpdx

    gbatpdx New Member

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    I tried this on my 2018 Limited but not working. Those are the only two wires that do not have corresponding posts in the replacement mirror connector, so its got to be them, right? A quick shopping trip resulted in a couple of alligator clip wires (red & black) and a couple of very different LED bulbs, one an auto 12.8V, 1.0w amber, the other a 2w that has 120 lumens - didn't really expect it to work but the other one, I did. Where did you get your LEDs?

    gbatpdx

     
  21. May 19, 2019 at 4:05 PM
    #21
    gbatpdx

    gbatpdx New Member

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    Well, I got the LED to work but the alert in the dash stays on!
     
  22. May 19, 2019 at 4:35 PM
    #22
    Jim LE 1301

    Jim LE 1301 Camaro Lover

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    :threadjacked:
    Welcome from NY.
     
  23. May 19, 2019 at 4:35 PM
    #23
    dumbassdave

    dumbassdave [OP] Member

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    Good that the lights work now. I don't have much for suggestions for the error message other than maybe disconnecting the battery for a bit to see if that clears it.
     
  24. May 19, 2019 at 4:37 PM
    #24
    dumbassdave

    dumbassdave [OP] Member

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    Both LEDs? If one is out or not connected you will get the error.
     
  25. May 19, 2019 at 4:38 PM
    #25
    gbatpdx

    gbatpdx New Member

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    ok. I'll try that later... Bushed today. Thanks!
     
  26. May 19, 2019 at 4:39 PM
    #26
    gbatpdx

    gbatpdx New Member

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    Just one. Haven't replaced the other mirror yet. Wanted to be sure I wasn't going to send them back :(...
     
  27. May 20, 2019 at 6:14 AM
    #27
    JoeJob

    JoeJob New Member

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    When I did my LEDs, I had purchased just a set from Amazon, simple 5mm 12v amber LEDs. I originally wired them with resistors and they appeared to work as they lit up when I first started the truck, but as soon as the BSM or RCTA system was activated, I got the warning on the dash about a BSM/RCTA malfunction. I removed the resistors and it's been working fine since. Over a year and no issues.
     
  28. May 20, 2019 at 6:50 AM
    #28
    dumbassdave

    dumbassdave [OP] Member

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    Almost 100% certain that it's because you only ha e one light connected. I just had my door panel off and broke a wire on one LED. Had the error until I fixed the light.
     
  29. May 20, 2019 at 7:17 AM
    #29
    gbatpdx

    gbatpdx New Member

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    Hmmm. There doesn’t seem to be a way to manually activate the BSM on my truck. Did the light go off before you took it for a drive? I haven’t tried driving it to activate, just used the dash menus to change the bulb brightness . Worked but didn’t affect the alert warning. I’ll try disconnecting the battery today.
     
  30. May 20, 2019 at 7:25 AM
    #30
    JoeJob

    JoeJob New Member

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    Everything seemed to be fine when I just started the truck up, but failed once I was driving around and the systems were triggered naturally. The computer is definitely sensitive to the resistance on the circuit, so you might want to make sure the LEDs you chose don't have built-in resistors.
     

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