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ARB Compressor wiring to CR switch

Discussion in '3rd Gen. Tacomas (2016-2023)' started by OuchIDied, Aug 1, 2025 at 1:01 PM.

  1. Aug 1, 2025 at 1:01 PM
    #1
    OuchIDied

    #1
    OuchIDied [OP] Well-Known Member

    Joined:
    Aug 18, 2019
    Member:
    #302555
    Messages:
    251
    Gender:
    Male
    Vehicle:
    2021 Silver Sky Tacoma Off-Road
    There's been a few threads on this that I've referenced, but none that are like my situation.

    I have a Caliraised switch, a Caliraised plug and play harness, and an
    $320 ARB CKMA12 On-Board Air Compressor High Performance 12 Volt for Air Locker Differentials and Tire Inflation
    ARB CKMA12 compressor.

    My main issue is the switch and plug and play harness and my general lack of understanding when it comes to switches and relays.

    Here's what I'm working with:
    IMG_7515.jpg IMG_7516.jpg

    So for the ARB there are two harnesses. The main harness in the engine bay and the switch harness. I was hoping to eliminate the switch harness (if possible) because it has so much additional wiring for two extra switches used for lockers. I understand that my CR switch would function as the isolation switch.

    So you can tell by my highlighting... I realized the Yellow and Dark Green are unneeded from the main harness as they're for locker solenoids. So I'm working with a Black (ground) and Red.

    Now to the switch... the plug and play harness uses the one Red and Black. So my understanding is that that is the Red 2 for dash lights and the Black for ground. Leaving me with Red 1 for my relay and Green for my "source with an inline fuse".

    This is where I'm baffled. What would I connect to the Red and Green on the switch to the harness? Do I need to keep the switch harness or can I connect directly to the main harness?

    Edit: I'm thinking I don't need the black from the compressor. So the Red from the compressor would go to the Red1 on the switch. That leaves Green... which I'm thinking needs a fuse tap/add-a-fuse or something.
     
    Last edited: Aug 1, 2025 at 5:05 PM
    OuchIDied, Aug 1, 2025 at 1:01 PM
    #1
  2. Aug 2, 2025 at 5:54 AM
    #2
    OuchIDied

    #2
    OuchIDied [OP] Well-Known Member

    Joined:
    Aug 18, 2019
    Member:
    #302555
    Messages:
    251
    Gender:
    Male
    Vehicle:
    2021 Silver Sky Tacoma Off-Road
    Bump.

    Think I figured it out, but wanted some confirmation before I hooked it up.

    I'm removing the top harness so I lose the Ignition and Dash Illumination wires.

    So I'm left with Black and Red...

    So Caliraised to Harness...
    Black -> Black on Caliraised harness for dimming with dash lights
    Red2 -> Red on Caliraised harness for illumination with dash lights
    Red1 -> Red on ARB main harness. This wire goes through the pressure switch and then ultimately to the relay.
    Green -> Add-A-Fuse to POUTLET in interior fuse box for switch power
     
    OuchIDied, Aug 2, 2025 at 5:54 AM
    #2
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