If you need help locating a good source we recommend checking google for wiring schematics for your vehicle.īelow is a list of common sources that typically only come on when the key comes on. You will want to locate an accessory power wire that is only powered when the vehicle is on. This will differ from vehicle to vehicle. Using the supplied red female quick disconnect, attach a lead of blue/grey wire to the prong on the pressure switch.įrom there, you will need to locate a good power source for this wire. Start by locating the supplied roll of blue or grey wire (doesn't matter which you use). If you connect this wire to the battery, the compressor could run overnight and drain your battery. You will connect this side of the pressure switch to a key-power-on source on the vehicle so that the compressor can only run when the vehicle is on. Now that our relay is wired up, you are now left with one side of the pressure switch to complete. This should be the last connection needed for the relay. Take the red lead from the compressor and connect it directly to pin 87 on your relay. Pin 30 is the easiest connection to complete with this setup. Slide the connector over pin 87, and crimp the exposed red wire in the connector. This connector will allow you to connect the 10ga red wire to the relay. Now, l ocate the neon green terminal connector in your electrical kit. Once the red wire has been routed back to the pressure switch, you can cut off any excess wire while still leaving a small amount of slack. You want to make sure you don't cut it too short. Do not cut your red wire until you have finished routing it back to the pressure switch. Route your red wire from the fuse holder back to the pressure switch. Go ahead and strip one end of the supplied red wire, and connect it into the opposite end of the yellow butt connector. The yellow butt connector will allow us to connect the fuse holder to our red wire, and complete the connection back to the pressure switch. The ring terminal can be used to connect the fuse holder to your positive battery terminal. The opposite end of the fuse holder will accept one of the yellow butt connectors included with the electrical connectors. Each end should now look like this:Īt this point, you will use the supplied ring terminal crimp connector on one side of this fuse holder. Using a set of wire strippers, strip each end of the holder and expose the copper leads. You can cut the wire where the dashed line is in the picture above. Go ahead and cut the fuse holder in the center to make two ends. *Do not install a fuse into the holder yet. Our fuse-holder is sent to you in a loop. You will also use the fuse holder here as well. For this connection, you will be using the red (10ga) wire that came with your kit. Pin 87 will connect to the positive terminal of our car battery. It only matters that this connection is made to one side of the pressure switch. It does not make a difference as to which lead or terminal you decide to connect this to. Pin 86 will connect to one of the leads/terminals on our pressure switch. *(Heavy gauge wire is not required for this connection) This terminal connector will simply slide over the pin on the relay, and you may crimp an exposed lead of 18ga wire into the connector. Alternatively, you can route this wire up to the negative terminal on the battery. This pin will get routed over to the frame of the vehicle as a ground. Pin 85 is a ground connection for the relay. We will use this connector for terminals 85 and 86. We will be using Female Quick Disconnects to complete these connections. Let's break it down into smaller bite-size pieces.Įach number on this diagram corresponds to each pin on our relay as we mentioned above. When looking at this diagram for the first time, it can seem a bit daunting. South Georgia & South Sandwich Islands (GBP £)
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