Fitting ARB air compressor

Very satisfying to do it all yourself. There is a live wire that you can pick up off the back of the wiper motor that comes on when you turn the ignition on and goes off when you turn the key back to accessories. If you pull this power plug out you can test with a test light to establish the live supply wire, usually the blue one on the left.
However I would take a direct supply from the battery through the switch to the compressor. Establish a good strong earth to a bolt on the body or engine, best to solder suitable terminals to wire ends. Put an inline fuse along the power supply wire near the compressor.
If you want to use an existing power wire eg wiper supply, check the fuse size to make sure the compressor doesn't draw more amps than the wiper or that if they were to both operate at the same time it doesn't exceed the fuse amps.
Before installing the switch do a test run with a rough set up of what you want it to do just to satisfy your self that it will all work the way you want.
Keep all wiring away from hot and moving bits, use cable ties.

Sorry Cocka, some of that was not good advice but saying that dosent mean it wouldnt work.

For anything that draws that kind of current should have there own circuit run to the fuse box or battery and not connected to something like the wiper motor.
You can't just change the wiper motor fuse to a larger one to run the compressor as well , the fuse is to protect the wiring as well as the wiper.

As said you must instal the fuse as close to the power supply to protect the wire from short circuit ect.

I dont want to sound mean but its important for people to do there electrics correctly as if there was a fault that caused the car to catch fire and burn to the ground and the insurance company found something dodgy they could void the payout!


Albert, dont forget to connect the power to the pressure switch fitted on the compressor tank.

Kev.

Went through all this a couple of years back .... works really well, but the detail is starting to fade...faras I recall, with the loom routed and plugged into the back of the supplied switch, you will get a blue light when you switch on. THE OTHER blue light in the switch needs to be separately supplied as a solo exercise from any part of the lights circuit. I just poked around till I found one that switched with the lights and then routed it through, separate from the loom. My switch is in the centre console with some other items (voltmeter / spots switch), so the lights supply was handy for those too. Mine is all off the aux battrery.Love the bush - stuck in the city - help.