ARB compressor/diff lock harness + CH4x4 switch pinout issue

I have a CH4x4 dual switch that has upper button controlling the compressor and lower controlling a differential lock. It is pretty straightforward:
1- connect to power source
2- connect to ground
3- connect to dimmer
4- connect to relay1 (compressor)
5- connect to relay2 (solenoid for rear locker)

I have the ARB harness mostly sorted out so that I am able to run the compressor successfully using the above switch and ARB harness.

ARB "isolating switch"
Black to ground
Red/Yellow to ignition power
Red to CH4x4 "relay 1" post

This works, except for the dimmer/light but that is an issue for another day.

I can't figure out how to get the "switch 1" on ARB harness, which is connected to the solenoid on the compressor manifold, to pop the solenoid or ever get power. The ARB wiring diagram (attached to this thread) sort of looks like "red" may be an output on the original ARB switch from the compressor, so that the differential lock can never be activated without the compressor being activated first. Knowing this, I attempted to mimic/bypass this set up and plug the red wire on "switch 1" on ARB harness to red/yellow power source from ignition. So far, this hasn't produced any action on the solenoid...unsure if red in this diagram on the switch side is meant to be 12v all the time (as if from ignition) or if it is only supposed to be 12v once the first switch is activated? Either way, I am OK with it just being 12V constantly ....

Anybody wired up an ARB harness to a CH4x4 switch, or other aftermarket non ARB switch to know what that red wire is supposed to do in order to make diff lock solenoid go?

 

You want 12V on the yellow wire to activate the locker solenoid. The red wire actuates the compressor and supplies 12V to ARB's switch 1 that can then be switched to the yellow wire to energize the locker solenoid.

 

Reviving this in hopes of getting some answers about that double switch as I can’t find answers anywhere.

I too have an arb - locker switch. What I don’t get is the relays. The compressor side shouldn’t need one right? Or because the switch is doubled up I need two relays? I was under the impression with the way the compressor gets power it doesn’t need a relay regardless.

The other tool on my switch is the stock center locking diff on my GX so do I need to mess with that and add a relay there too?

 

The compressors always need relays. However, if you have an ARB twin they're already integrated into the package and the purple wire is the trigger to both relays.

 

Thank you!!