ARB Single mount options

[Rogueman_1]

Bumping this because I have the same exact question. I have the twin, but I had an extra single comp that I want to install on my sister's new JL.

Here's the one I think I'm going to get -

This is exactly how I set mine up.

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[oceanblue2019]

Keep it simple, run your main power feed to the battery using the supplied fuse holder. I ran mine through the frame up to the battery, then use a low amperage switch to activate the compressor, I used #3 but use what ever you want. The only thing I did that was different is ordered a long extension with matching factory plugs to run power from the battery to the compressor.

If you look under your Jeep there are not wires below the tub unless needed for a reason and adding power in the frame is a nasty hack job.

For a single ARB Aux 1 or 2 is the perfect way to power it.

1) Already in the cabin - no need to mess around to get through firewall, or resort to running in the frame.

2) Already switched, relayed and fused at 40A.

3) Can be programmed to only come on with ignition which is what you want.

 

[xaugievike]

Well - she's in.....but not firing up.

I ran main lines to the battery. With the Red for the ARB switch wired into Aux 4.

When I press the Aux button I can hear the relay clicking. I have also confirmed I have batter voltage at the pump wiring harness.

But it doesnt kick on

Thoughts?

 

[eck]

On the ARB single, the pressure switch is inline with the control circuit for the relay. If you power the compressor directly from the aux switch, then you can't (easily) use the pressure switch.

 

[eck]

Well - she's in.....but not firing up.

I ran main lines to the battery. With the Red for the ARB switch wired into Aux 4.

When I press the Aux button I can hear the relay clicking. I have also confirmed I have batter voltage at the pump wiring harness.

But it doesnt kick on

Thoughts?

Keep in mind you're going to have two relays click (assuming you're not powering directly from aux), one for the aux switch itself and one on the ARB harness. Make sure you're hearing the one on the harness click.

 

[xaugievike]

Keep in mind you're going to have two relays click (assuming you're not powering directly from aux), one for the aux switch itself and one on the ARB harness. Make sure you're hearing the one on the harness click.

I did not power via the Aux button - I ran direct to battery.

Definitely the one on the harness - I have the relay mounted out back by the compressor - no question thats the one thats clicking when Aux 4 is pressed.

Maxi Fuse checks out ok (which it should since I have battery voltage out back at the compressor. pressure switch has continuity.

 

[eck]

I have battery voltage out back at the compressor.

Can you clarify this part? You have 12V between the Red/Wht and Blk/Wht wires? Those are the two that drive the compressor motor.

 

[neil]

Mine's on aux 4 and mounted in the rear like others.

 

[xaugievike]

Can you clarify this part? You have 12V between the Red/Wht and Blk/Wht wires? Those are the two that drive the compressor motor.

First off thanks for real for your help. I do greatly appreciate it.

Pic 1 - jeep fired up, Aux Switch off

Pic 2 - Aux switch turned on

Pic 3 - Aux switch off again.

 

[xaugievike]

Mine's on aux 4 and mounted in the rear like others.

where is your air chuck at?

 

[neil]

where is your air chuck at?

In the @$#%@% slow arse mail

 

[eck]

First off thanks for real for your help. I do greatly appreciate it.

Pic 1 - jeep fired up, Aux Switch off

Pic 2 - Aux switch turned on

Pic 3 - Aux switch off again.

Ok, that should fire right up then as far as I can tell. The only other thing would be the internal thermal cutoff but it's obviously not hot! Maybe you got a bad compressor

 

[xaugievike]

Ok, that should fire right up then as far as I can tell. The only other thing would be the internal thermal cutoff but it's obviously not hot! Maybe you got a bad compressor

Kinda what im starting to think. One of the manuals troubleshooting steps says to wire it direct to battery and if it doesnt run it's bad....if I have voltage at that spot on the compressor side of that harness though it's getting juice. I'll have to contact ARB tomorrow.

Thank you again for your help - and to all who have commented thus far.

 

[xaugievike]

Just spoke with ARB and they said I need to get the red yellow wire (at the isolation switch) involved. Not sure I follow the logic given how Im wiring this to the aux switch, but he said if it doesnt have power the compressor won't kick on. any thoughts?

 

[eck]

Just spoke with ARB and they said I need to get the red yellow wire (at the isolation switch) involved. Not sure I follow the logic given how Im wiring this to the aux switch, but he said if it doesnt have power the compressor won't kick on. any thoughts?

This is not needed.

On the wiring diagram, the red/yellow wire is connected to an ignition power source. The isolation switch is just making the connection between the ignition power source on the red/yellow wire and the red wire. It's just a simple switch the same as a wall switch in a house.

On the JL with the aux switches, the aux switch wire is already functioning as an ignition-triggered switch[*]. The isolation switch part of the circuit is redundant and you don't need to worry about it. All that matters is that you press the aux button and you get 12v on the red wire.

Just a note for others following along, the manual is available here:

https://www.aircompressorsdirect.com/manuals/arbckma12_24installl_2.pdf

You made reference to the troubleshooting parts in your earlier post, that's on page 18 (PDF page 20).

So we're basically at Step 2:

Disconnect the compressor motor from the wiring loom at the connector plug. Run a new wire directly from the negative (-) terminal of the battery [#1] to the BLK-WHT wire of the compressor motor. Momentarily connect a wire from the positive terminal of the battery [#2] to the RED wire of the compressor motor.

Did the compressor activate when the wires were connected?

YES Remove the extra wires and reconnect the compressor motor plug. Proceed to STEP 3.

NO Internal compressor motor problem. Contact ARB for assistance.

I'd argue that we already verified NO on that one, since you checked the red/wht and blk/wht wires on the harness and verified that they have 12v on them, and that's what's feeding into the motor. If you want to be super duper sure about things, you can jumper the motor directly to the battery like the manual describes. Just make sure it's a heavy enough gauge that you're not going to burn it up. But given your previous posts, I fully expect it to be dead.

[*] Assuming you have it programmed that way. It can also be configured to trigger even when the ignition is off.

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