ARB Twin Compressor Install WITH Switch Pro SP9100

Hey everyone! I picked up the ARB Twin Compressor and am starting the install process tonight into tomorrow and am in need of some insight with the wiring. I will not be doing the "standard" install as I have a Switch Pro, therefore I do not need the included switch. Has anyone here installed in this manner that can provide me with some insight and instructions. I am getting much better with electrical as of late, but I am definitely still behind the curve. Thank you!

 

ARB offers a switch pros harness for their compressors, which would make it slightly easier, but isn’t necessary. You can still splice everything together without it. However this may help: https://trail4runner.com/2019/10/10/switch-pros-quick-connect-harness-for-arb-compressors/

 

Power for the compressor will be fused and ran directly off the battery. The switch wire, find in the install instructions included and cut off the connector or splice into that wire and wire it to one of the outputs on the switch pro.

 

This. The trigger wire is purple. Connect the connector to the compressor and then the purple wire to the Switch-Pros. It’s just a trigger wire, since the compressor gets its power from the 2 fused large wires. Set it to one of the 20amp switches and adjust to 5A for the overcurrent.

I just did this install.

 

Get the harness @Willard referenced above. I used this for my install and it was very easy.

https://trail4runner.com/2019/10/10/arb-twin-compressor-install-5th-gen-4runner/

 

Just installed ARB twin on SDHQ mount wired to sp9100 two days ago. I scrapped the provided harness and made my own with CE electric 8AWG wire. Independent positives with maxi fuses, and combined ground wire including the small 20AWG wire to simplify things.

The switch harness from ARB is a joke. Chop everything off except the purple wire, which is run to your switch pros. The wire was a little short for the routing I chose so I had to splice in an extension with some of the previously scrapped wire. I just snipped and sealed the other ground wire coming from the switch harmess.

 

Followed the routing of the factory harness from the passenger side firewall in front of the radiator and to the battery to avoid the ghetto looking routing along the top of the firewall. I ran out of loom so left more of the purple wire exposed than I would like.

 

Thank you! I may order that and clean things up in the near future.

 

Thank you so much! I appreciate the help!

 

This... all you need is to connect the switch pro to the purple wire on the compressor.

 

Fantastic! Thank you for the info!

 

That is a super well put together tutorial! Thanks for the help! I appreciate it!

 

Thank you so much for all the info! Yours turned out great. Super clean looking. That is what I'm after with mine. So far all the other stuff I have added has looked clean and simple. I want to keep it that way. And yes, the ARB Harness is a cluster. haha

 

Hi Sir, Did you also connect the black wire on this switch harness to a ground?

I recently installed mine with a switch pro.

This is my wiring:

Main Harness:
2 red wire with 40amp fuse each to positive of the battery
1 big black and 1 small black wire to negative/ground

Switch Harness:
Purple wire to SP switch #2


*not working*

So I'm guessing, I am missing the black wire from the switch wiring harness to be connected to a ground?

 

Nope. I literally terminated that black wire you see in the picture right there after the delphi connector. It's not needed

 

Thank you for the prompt reply. it must be the Quick Splice Wire Terminals T-Tap Self-stripping that I used. I tap just before that wiring harness and not use the switch wiring harness at all.


Is there anything that I need to be aware of? I was thinking that I over tighten the filters, I also thought that the reserve tank was full from the factory that why its not turning on.

 

Problem Solved its the Quick Splice Wire Terminals T-Tap Self-stripping.