ARB Wire Harness CKMA12 Modification
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7th Gear
Joined: Apr 2022
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ARB Wire Harness CKMA12 Modification
I have the CKMA12 ARB high performance on-board compressor (the single), and I am looking to connect it directly to a 40 amp upfitter switch. Doing so would make the relay unnecessary. I will only be using this for airing up tires and not for lockers. How would I need to modify the harness?
7th Gear
Joined: May 2019
Posts: 7
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I am about to wire one up myself (it should arrive today). I think you will still need the relay in order to use the pressure switch. The pressure switch can't handle the motor current alone so it will need to control the relay.
You can wire power to the relay contacts and to the coil with the same wire from the upfitter. The pressure switch will need to be in series with the relay coil.
You can wire power to the relay contacts and to the coil with the same wire from the upfitter. The pressure switch will need to be in series with the relay coil.
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