1. Welcome to Tundras.com!

    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 Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Wiring an extra set of led reverse lights

Discussion in 'Lighting' started by cjscinta, Aug 12, 2021.

  1. Aug 12, 2021 at 7:54 AM
    #1
    cjscinta

    cjscinta [OP] New Member

    Joined:
    Jul 25, 2017
    Member:
    #8739
    Messages:
    212
    Gender:
    Male
    Nashville TN
    I did a search but couldn’t quite find what I was looking for. I am trying to wire an extra set of reverse lights in my rear bumper. I don’t think I have a need to switch them unless someone could tell me the advantage of doing so besides blinding tailgaters. Or off road use maybe?

    They are led low draw pod lights so can’t I just directly tap into the reverse lights? I don’t think I need a relay or even an in-line fuse seeing the reverse lights themselves are fused no?
    Thanks for the feedback.
     
  2. Aug 12, 2021 at 8:41 AM
    #2
    Cruzer

    Cruzer Wheeling Full Size

    Joined:
    Oct 12, 2020
    Member:
    #53461
    Messages:
    3,246
    Gender:
    Male
    First Name:
    Cruz
    Sunnyvale, CA
    Vehicle:
    Build Page: Cruzer's Re-Build for the Rubicon
    If those lights have less resistance than the factory lights then you may end up blowing a fuse. I’d take an ohm meter and compare the resistance between the two and add a resistor, if necessary.
     
  3. Aug 12, 2021 at 8:56 AM
    #3
    TucsonTundra1794

    TucsonTundra1794 ASCM #6-11 I'll buy if you're willing to ship

    Joined:
    Mar 8, 2021
    Member:
    #60155
    Messages:
    2,918
    Gender:
    Male
    First Name:
    Anthony
    Tucson, AZ
    Vehicle:
    2023 1794 Edition TRD Package
    To be safe I'd over build it, run a relay and have the trigger leg wired off the reverse bulb wire then run ground off metal screw back there and power all the way to the front to battery with in line fuse. I have a set of rigid reverse lights that have a wire harness that does exactly this but it came with a 3 way rocker switch built in. Up is on, middle is off, down is only on with reverse. It's a cool set up.
     
    Tundra234 likes this.
  4. Aug 12, 2021 at 10:16 AM
    #4
    cjscinta

    cjscinta [OP] New Member

    Joined:
    Jul 25, 2017
    Member:
    #8739
    Messages:
    212
    Gender:
    Male
    Nashville TN
    Thanks for the info. It’s never as simple as I want to make it isn’t it? Lol.
     
  5. Aug 12, 2021 at 10:17 AM
    #5
    TucsonTundra1794

    TucsonTundra1794 ASCM #6-11 I'll buy if you're willing to ship

    Joined:
    Mar 8, 2021
    Member:
    #60155
    Messages:
    2,918
    Gender:
    Male
    First Name:
    Anthony
    Tucson, AZ
    Vehicle:
    2023 1794 Edition TRD Package
    Nope and it gets even funner when you follow instructions and it doesn't work.
     
  6. Aug 12, 2021 at 10:27 AM
    #6
    Puppypunter

    Puppypunter New Member

    Joined:
    Feb 22, 2021
    Member:
    #59480
    Messages:
    129
    Gender:
    Male
    First Name:
    Johnny
    Denver, CO
    Vehicle:
    2019 Tacoma
    As long as they are rated for 12v, you shouldn’t have to worry about resistors. I would be mindful of amperage draw though. If you have replaced the stock reverse bulbs with LEDs, you can probably do 2A additional load with not much concern. If not, keep the additional load under 1A and I think you’d be okay. If you want to add a relay to the rear triggered by the reverse lights, that is doable to. Maybe run a 14g wire up to the battery and you could 4-5 amps. Make it 12g and go up to 7-8 amps. If you need more amperage, then HOLY CRAP! HOW BRIGHT DO YOU NEED IT?!
     
  7. Aug 12, 2021 at 10:44 AM
    #7
    TucsonTundra1794

    TucsonTundra1794 ASCM #6-11 I'll buy if you're willing to ship

    Joined:
    Mar 8, 2021
    Member:
    #60155
    Messages:
    2,918
    Gender:
    Male
    First Name:
    Anthony
    Tucson, AZ
    Vehicle:
    2023 1794 Edition TRD Package
    If you aren't pulling 12 amps then did you even add lights to the back?
     
    Puppypunter[QUOTED] likes this.
  8. Aug 12, 2021 at 10:55 AM
    #8
    TRDFerguson

    TRDFerguson SSEM #99/RGBA #8-ish?/It’s a funny name.

    Joined:
    Oct 18, 2018
    Member:
    #20730
    Messages:
    10,625
    Gender:
    Male
    First Name:
    Jake
    Southeast Greater Basin, AZ
    Vehicle:
    2018 MGM CrüeMax
     
  9. Aug 12, 2021 at 11:47 AM
    #9
    Tundra234

    Tundra234 New Member

    Joined:
    Nov 30, 2018
    Member:
    #22402
    Messages:
    17,985
    Gender:
    Male
    First Name:
    George
    Florida
    Vehicle:
    2020 Tundra DC SR5 Barcelona
    Alot of them
    That's what I have in mine. They definitely work on tailgaters.
     
  10. Aug 12, 2021 at 11:53 AM
    #10
    Cummins3500

    Cummins3500 Never finishes.....

    Joined:
    Jan 4, 2020
    Member:
    #40729
    Messages:
    1,067
    Gender:
    Male
    First Name:
    Logan
    Vehicle:
    2006 tundra double cab, 2014 Cummins 6-speed manual
    I’ve got a set of rigid sr-q series pro flush mounts in my rear bumper, wired to my trailer plug to come on when reverse lights trigger. I cut the rigid harness up, used the inline fuse just for a little extra protection. Installed back in January. Works awesome.
     
    TucsonTundra1794 likes this.

Products Discussed in

To Top