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Switch Pros/ARB Lockers ?s

Discussion in 'Technical Chat' started by Jared8907, May 24, 2022.

  1. May 24, 2022 at 4:25 AM

    Jared8907 [OP] txtaco07

    Feb 1, 2017
    2015 DCLB 4x4
    Weathertechs Tint Led Interior Method NV TRD Pro Bilstein Suspension Icon AAL CaliRaised sliders
    Greetings, I’m in the process of regearing and adding lockers on my 2015 DCLB, and had a few questions/observations. I recently installed a switch pro 9100 on a power tray, and my plan was to install my ARB compressor and locker solenoids onto the SP unit. I mounted my remote next to the cup holder, so it could be at my fingertips and I wouldn’t have to take my eyes off the road to find it.

    After installing and just kinda looking at things I had some concerns…

    If I’m going down highway at 70mph and the front locker accidentally gets pressed, that would be bad. If I’m not mistaken how the ARB compressor and solenoids wire up, if I press a locker solenoid the air compressor automatically kicks on. Is this true?

    From what I’ve seen switch pros does not have a feature where I have to depress the switch for a few seconds for activation….it’s just push on/off. Also considering the other issue of if something were to happen to the SP unit (failure) I’d have no air and lockers…

    This is making me reconsider wiring the compressor and locker solenoids info OEM type switches in the dash…it seems like it would be much more difficult to accidentally engage them that way.

    Does anyone have any input or have any experience with this? Any help is greatly appreciated. For reference I’ve installed or will be installing:

    Power trays
    ARB Dual compressor
    Arb manifold
    Arb F/R lockers
    Expedetion Essentials bedside compressor mount
    Expedition essentials wiring harness w/solenoids3BDC2C8C-085B-4B4C-AB8C-2536FD329618.jpg 4DF7C8EB-57F4-4D0F-A56F-48D709FE7184.jpg
    Last edited: May 24, 2022
  2. May 24, 2022 at 5:31 AM

    ShimStack Well-Known Member

    Mar 11, 2012
    First Name:
    '91 Truggy, '98 Project, '16 DC OR M/T Locked F/R
    I plan to have my compressor and air locker controlled via my switch pro.

    The way the stock ARB setup works is that BOTH the compressor and locker switch must be on to energize the air locker solenoid. If you switch on the locker without the compressor switch also on, nothing will happen.

    When you use the switch pro you could reproduce this in a few ways using hardware. My approach was different. I installed a dump valve on my compressor which allows me to release pressure from the air system. I did this for a couple reasons but one was to eliminate the chance of an accidental button press or some other failure from locking my front diff at speed in 2wd. Once the pressure is released it again requires two switches to be activated, the compressor and the front locker, for the front diff to get locked.

    Edit for clarification: The stock setup does not let the solenoid that controls the air locker energize unless both switches are on. You can reproduce this by running your outputs through a couple relays so that the locker control solenoid only turns on when both outputs (compressor and front locker) are switched on.

    My setup allows the front air locker solenoid to be energized at any time. However, it won't allow the front locker to actually lock because there is no pressure source after releasing air via the dump valve. In order to re-energize the pressure source, the compressor must also be turned on. This safety mechanism requires that the air pressure be dumped in order to require 2 switch presses to get the front locker locked.
    Last edited: May 24, 2022
  3. Oct 31, 2022 at 11:24 AM

    Kribadoux New Member

    Oct 17, 2022
    First Name:
    2021 Lunar Rock Tacoma TRD PRO
    Switch Pro, Tires, GMRS radio,
    Did you use the switch pro / ARB pigtail from switch pro to accomplish this?

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