1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Advice needed: various and sundry electrical mods

Discussion in '2nd Gen. Tacomas (2005-2015)' started by ardrummer292, Jul 27, 2020.

  1. Jul 27, 2020 at 8:31 PM
    #1
    ardrummer292

    ardrummer292 [OP] Resisting G.A.S.

    Joined:
    Feb 27, 2020
    Member:
    #320484
    Messages:
    756
    Gender:
    Male
    First Name:
    Austin
    Virginia Beach, VA
    Vehicle:
    2015 DCLB V6 AT 4x4 1D6
    Overbuilt daily driver
    After a punishing 5 months of nonstop 60 hour workweeks, it looks like I'll finally be able to take a week off and get some stuff done on my truck. I plan on ordering everything I need in the next day or so, which means it should arrive right about when my time off starts. I'm reaching out here to make sure nothing is incorrect or missing. I have basically zero electrical experience, so don't hesitate pointing out obvious stuff that I haven't listed; it's almost certain that I don't know I'll need it.

    Without further ado...

    Replacement dash switches: I'm planning on replacing the OEM "VSC OFF" and "RSCA OFF" switches with some from CH4x4. Why, you ask? Well, mostly because I'm adding an ABS kill switch (for snow/loose terrain) and want all of the switches to match. Now, I'm pretty sure the VSC and RSCA switches should be momentary type (not on/off) since holding them down changes their function. I am also operating under the assumption that the OEM wiring will simply plug into the CH4x4 switch. Am I wrong?
    CH4x4 switch: https://www.ch4x4.com/product/ch4x4-custom-laser-etched-toyota-push-switches/
    ABS kill switch mod: https://www.tacomaworld.com/threads/4lo-trac-abs-kill-switch-why-why-not.257444/#post-6254094

    Yellow wire mod switch: In true "wish I didn't buy a Sport" fashion, I'll be performing the yellow wire mod to enable traction control while in 4LO. I'm going to add a button to enable/disable it, since that's the only way to disable the flashing indicator (and keep my blood pressure down). CH4x4 makes custom small rectangular switches that go under the head unit in the center, which is where I plan to put the switch. These switches are only rated for 3A. Does anyone know how much amperage is flowing through this wire when engaged? I'd rather avoid adding a relay, since relays are devil magic.
    CH4x4 small switch: https://www.ch4x4.com/product/ch4x4-custom-laser-etched-toyota-small-push-switches/
    Yellow wire mod: https://www.tacomaworld.com/threads/4lo-trac-abs-kill-switch-why-why-not.257444/#post-6254361

    Dash cam setup: Traffic is insane during the morning rush getting onto base. I'm planning on the Blackvue DR750S-2CH, a Power Magic Pro hardwire kit, and Add-a-Fuses to get it hooked up to power. I don't need ultra-high-resolution and I do want good performance while in parking mode, so it seems to be my best option. I'm planning on buying a SanDisk 256GB Max Endurance SD card as well, since it's rated for nearly 14 years (!) of continuous looping recording. Is there any reason I should go for a different dash cam or memory card?
    DR750S-2CH: https://www.blackboxmycar.com/products/blackvue-dr750s-2ch
    SanDisk SD card: https://www.bhphotovideo.com/c/prod...r_256g_an6ia_max_endurance_microsd_256gb.html

    USB charger for back seats: Nothing says "you suck and we hate you" like being relegated to the backseat for an extended trip. Not having a way to charge your phone is just adding insult to injury. I'm planning on installing a Blue Sea Systems 1016-BSS in the backside of my center console. I assume I'll have to get an Add-a-Fuse to run power to it. Is there anything else I'll need?
    Blue Sea Systems 1016-BSS: https://www.amazon.com/Below-Deck-Charging-Panel-Charger/dp/B0082CXEI8?th=1
    Add-A-Fuse: https://www.amazon.com/Nilight-NI-FH02-Circuit-Adapter-Warranty/dp/B07T8LRSH7?th=1

    Jumper cables: I can't believe I've been without any for this long, so this is really just some long-overdue outfitting. I've heard some compelling arguments recommending a quality jump pack (like the Noco GB40) over jumper cables. What do you think?
    Fancypants jumper cables: https://www.amazon.com/Energizer-1-Gauge-Jumper-Battery-Booster/dp/B017O8JZP6/
    Noco GB40 jump pack: https://www.amazon.com/NOCO-GB40-12...360243230601&ref_=sbx_be_s_sparkle_mcd_asin_0

    Grounding bolt ID: This isn't a purchase, of course. I'm just looking for the correct place to attach the "other" (black) wire while running these Add-a-Fuse things to the red wire. Is there some easy way to tell which bolts are for grounding and which are not?

    Other stuff: Do I need to buy a voltmeter? A crimping tool? Some ancient religious texts, or whatever electricians use to make lightning do things? Totally open to suggestions. Items that prove useful more than once are preferred, of course.

    Tagging @Benson X, @caribe makaira, @crashnburn80, and @EatSleepTacos. Gondor calls for aid.
     
  2. Jul 27, 2020 at 8:34 PM
    #2
    t0nyvalenzuela

    t0nyvalenzuela Well-Known Member

    Joined:
    Dec 1, 2018
    Member:
    #274466
    Messages:
    338
    Gender:
    Male
    Vehicle:
    2019 Tacoma TRD OR DCLB
    Puck level
    I’d say get some wire strippers and pick up a kit of assorted wire connectors. Heat shrink tubes are fun too and they work with lighters.
     
    ardrummer292 [OP] likes this.
  3. Jul 27, 2020 at 8:42 PM
    #3
    Slum Lord

    Slum Lord Well-Known Member

    Joined:
    Jan 2, 2020
    Member:
    #314975
    Messages:
    142
    Gender:
    Male
    My suggestion is to avoid replacing any factory switches at all. This is the kind of butchery that usually creates problems and looks bad when you go to sell.

    I get the tractional control or ABS thing but probably should get a good quality switch (not the Chinese Amazon garbage) or use a relay.

    It sounds based on your post that you are in over your head if you are doing electrical work and asking if you need a meter.
     
    06Tacooo and ardrummer292 [OP] like this.
  4. Jul 27, 2020 at 8:45 PM
    #4
    ardrummer292

    ardrummer292 [OP] Resisting G.A.S.

    Joined:
    Feb 27, 2020
    Member:
    #320484
    Messages:
    756
    Gender:
    Male
    First Name:
    Austin
    Virginia Beach, VA
    Vehicle:
    2015 DCLB V6 AT 4x4 1D6
    Overbuilt daily driver
    I was hoping that the CH4x4 switches would be plug-and-play replacements for the OEM switches. I am also under the impression that they're of decent quality. If either of those things are wrong, please let me know before I make an expensive mistake.

    I'm well over my head if anything goes wrong. That could be said of pretty much anything vehicle-related, though. That's why I waited to tackle any of this stuff until I had a full week to figure it out.
     
    Last edited: Jul 27, 2020
  5. Jul 27, 2020 at 8:51 PM
    #5
    TnShooter

    TnShooter Well-Known Member

    Joined:
    Sep 2, 2010
    Member:
    #42625
    Messages:
    3,597
    Gender:
    Male
    Vehicle:
    07' TRD Off-Road, Auto
    STOCK
    Most of the switches Toyota uses on these trucks are supplying a ground.
    Most aftermarket switch’s supply 12v. They probably won’t work in place of the factory switches.
    @Muddinfun knows more about this, than I do.
     
    ardrummer292 [OP] likes this.
  6. Jul 27, 2020 at 8:52 PM
    #6
    ardrummer292

    ardrummer292 [OP] Resisting G.A.S.

    Joined:
    Feb 27, 2020
    Member:
    #320484
    Messages:
    756
    Gender:
    Male
    First Name:
    Austin
    Virginia Beach, VA
    Vehicle:
    2015 DCLB V6 AT 4x4 1D6
    Overbuilt daily driver
    This is exactly the sort of stuff I need to know. Good looking out, and definitely curious to hear @Muddinfun's input.
     
  7. Jul 27, 2020 at 8:55 PM
    #7
    Slum Lord

    Slum Lord Well-Known Member

    Joined:
    Jan 2, 2020
    Member:
    #314975
    Messages:
    142
    Gender:
    Male
    I fear giving electrical advice to someone who asks of they need a meter or crimpers. Don't cut your wiring up, this is asking for a ton of pain and suffering where it seems the only gain is having matching switches cosmetically.
     
  8. Jul 27, 2020 at 9:09 PM
    #8
    Muddinfun

    Muddinfun Well-Known Member

    Joined:
    Apr 17, 2017
    Member:
    #216500
    Messages:
    7,240
    I don’t have schematics that are new enough to show the systems you’re working with, but TnShooter is correct that many OEM switches complete the circuit to ground and the aftermarket switches are not compatible with those type of circuits. My advice is you shouldn’t be messing with those circuits just to make the switches cosmetically match.
     
    ardrummer292 [OP] likes this.
  9. Jul 27, 2020 at 10:04 PM
    #9
    ardrummer292

    ardrummer292 [OP] Resisting G.A.S.

    Joined:
    Feb 27, 2020
    Member:
    #320484
    Messages:
    756
    Gender:
    Male
    First Name:
    Austin
    Virginia Beach, VA
    Vehicle:
    2015 DCLB V6 AT 4x4 1D6
    Overbuilt daily driver
    Thanks for the honest advice. There is no way in hell I'll cut up my stock wiring. It's plug-and-play or bust.

    Understood. Am I to assume that no one makes proper OEM-spec replacement switches, that function as you describe?
     
  10. Jul 27, 2020 at 10:21 PM
    #10
    Muddinfun

    Muddinfun Well-Known Member

    Joined:
    Apr 17, 2017
    Member:
    #216500
    Messages:
    7,240
    I’m not aware of any. Wiring switches to supply a ground is not the norm. Most people want to use a key switched power source to feed a switch, which then turns on a relay. That way, lights and things can only be turned on when the key is on. Wiring OEM switches to supply a ground is convenient when you have electronics doing the decision making.
     
    ardrummer292 [OP] likes this.
  11. Jul 27, 2020 at 10:50 PM
    #11
    ardrummer292

    ardrummer292 [OP] Resisting G.A.S.

    Joined:
    Feb 27, 2020
    Member:
    #320484
    Messages:
    756
    Gender:
    Male
    First Name:
    Austin
    Virginia Beach, VA
    Vehicle:
    2015 DCLB V6 AT 4x4 1D6
    Overbuilt daily driver
    I don't have the electrical chops to understand the specifics here, but I think I get the general idea. It looks like keeping my OEM switches is far and away the least risky option. In that case, I have a couple follow-on questions.

    Who makes switches that most closely resemble the OEM parts? The only reason I was planning on swapping out my OEM switches was for looks. If I can accomplish the same aesthetic match while reducing the risk of complications, it's a win-win. The text on my switches glow a light greenish hue, if that helps.

    Is it difficult or risky relocating switches to a different slot? I'll eventually replace the lower row of 3 switches entirely with a SwitchPro panel. That leaves the upper 3 switch row of slots as the only available location. I'd like to have all my off-road/adverse conditions switches located here, since it's a logical way to organize things. The 4LO TRAC "yellow wire mod" switch is the exception, which I'd like to keep in the center console.

    If it helps, here's the switch setup I have in mind:

    Left of steering wheel, upper row of 3 switches -
    - VSC OFF
    - ABS OFF
    - RSCA OFF

    Left of steering wheel, lower row of 3 switches -
    - Replaced with SwitchPro 9100 panel, controlling the following:
    --- Aux high beam LEDs enable/disable
    --- Scene lights (L) on/off
    --- Scene lights (R) on/off
    --- Bed/cargo lights on/off
    --- Fog lights enable/disable
    --- Master 12V power on/off (manual control for 12V anytime mod)
    --- AC bed outlet power on/off
    --- Cell signal booster power on/off

    Right of steering wheel in center console -
    - 4LO TRAC switch
     
  12. Jul 27, 2020 at 11:07 PM
    #12
    j8food

    j8food Well-Known Member

    Joined:
    May 31, 2016
    Member:
    #188353
    Messages:
    118
    Gender:
    Male
    First Name:
    Jay
    Vehicle:
    2009 Tacoma TRD Off Road
    Get a fuse panel for under the hood. I've done a bunch of mods and now regret not doing this first. It keeps everything clean and safe.
     
  13. Jul 28, 2020 at 6:15 AM
    #13
    ardrummer292

    ardrummer292 [OP] Resisting G.A.S.

    Joined:
    Feb 27, 2020
    Member:
    #320484
    Messages:
    756
    Gender:
    Male
    First Name:
    Austin
    Virginia Beach, VA
    Vehicle:
    2015 DCLB V6 AT 4x4 1D6
    Overbuilt daily driver
    From what SwitchPro told me, fuse panels aren't necessary for use with their product.
     
  14. Jul 28, 2020 at 7:16 AM
    #14
    ardrummer292

    ardrummer292 [OP] Resisting G.A.S.

    Joined:
    Feb 27, 2020
    Member:
    #320484
    Messages:
    756
    Gender:
    Male
    First Name:
    Austin
    Virginia Beach, VA
    Vehicle:
    2015 DCLB V6 AT 4x4 1D6
    Overbuilt daily driver
    I think I found an answer to this one:
    https://www.aironboard.com/online/p...toyota-oem-replacement-abs-off-new-green.html

    Still not sure about this one. It's probably a dumb question, but I'd rather ask now than panic later.
     
  15. Jul 28, 2020 at 7:27 AM
    #15
    riparke

    riparke New Member

    Joined:
    May 28, 2020
    Member:
    #329643
    Messages:
    3
    Gender:
    Male
    Vehicle:
    2006 blue Tocoma 4.0l V6, 6 speed manual
    I'm confused, switches open or close a circuit, it's the circuit that is connecting to ground or power. The switch couldn't care less only the amount of current and the pole configuration (single, dual pole, etc).
     
  16. Jul 28, 2020 at 7:33 AM
    #16
    ardrummer292

    ardrummer292 [OP] Resisting G.A.S.

    Joined:
    Feb 27, 2020
    Member:
    #320484
    Messages:
    756
    Gender:
    Male
    First Name:
    Austin
    Virginia Beach, VA
    Vehicle:
    2015 DCLB V6 AT 4x4 1D6
    Overbuilt daily driver
    I don't understand it either. A quick search proves that it's a very real issue, though.

    @TnShooter, @Slum Lord, @Muddinfun: apologies for not using the search function earlier. It looks like you guys field this question regularly.

    I still have outstanding questions if anyone has input.
     
  17. Jul 28, 2020 at 9:58 AM
    #17
    Muddinfun

    Muddinfun Well-Known Member

    Joined:
    Apr 17, 2017
    Member:
    #216500
    Messages:
    7,240

    It has to do with the LEDs inside the switch. LEDs only flow in 1 direction. When you try to illuminate the switch with your running light circuit, things don’t work right if you’ve mixed things up.
     
    6 gearT444E and riparke like this.
  18. Jul 28, 2020 at 10:02 AM
    #18
    ardrummer292

    ardrummer292 [OP] Resisting G.A.S.

    Joined:
    Feb 27, 2020
    Member:
    #320484
    Messages:
    756
    Gender:
    Male
    First Name:
    Austin
    Virginia Beach, VA
    Vehicle:
    2015 DCLB V6 AT 4x4 1D6
    Overbuilt daily driver
    Speaking of switch illumination... is there any way for the switch to illuminate when the circuit is open instead of closed? It wouldn't make much sense to have my ABS OFF light illuminated during normal (ABS enabled) operation.
     
    riparke likes this.
  19. Jul 28, 2020 at 10:03 AM
    #19
    Muddinfun

    Muddinfun Well-Known Member

    Joined:
    Apr 17, 2017
    Member:
    #216500
    Messages:
    7,240
    There is no OEM ABS off switch so there can’t be an aftermarket OEM replacement for it.

    As far as moving the switches, go for it. If the wires are too short, you need to extend them with proper solder and heat shrink connections.
     
  20. Jul 28, 2020 at 10:05 AM
    #20
    Muddinfun

    Muddinfun Well-Known Member

    Joined:
    Apr 17, 2017
    Member:
    #216500
    Messages:
    7,240
    Anything is possible with a relay.
     
To Top