ARB compressor wire loom

Wanted to shorten my arb wire loom and did everything to the diagram in the manual but it doesnt work. Check the continuity everything looks good. The relay from the battery (red) has 12v at the relay. the red white coming out of the relay and to the compressor has nothing, is this normal?



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


page 14 for diagram

 

maybe a bad pressure switch, jumper it together and see if it turns on

 

Just what are you using to energize the relay Coil ??

From the print the relay is energized through all 3 switches being in the on position the ignition on

That is hooked up and you have a good ground ??

We all have put wires on the wrong pins at times it happens

If this is hooked up correct and you still don`t have system voltage out of the relay the relay is not working .

might be a bad pressure switch as mentioned

Also possible with all those splices you have a bad one

one wire at a time from the source through the load to ground

I am guessing this worked before the remodeling ??

 

thanks for all the help. it turns out you need to the ignition switch. its necessary . red yellow which goes to pin 3 on the toggle switch needs to be ran to the battery

 

Glad you found your problem

Looking at the Print I also noticed ARB has a excellent trouble shooting process to follow