It's time to put a beat-down on the AI machine!
There are a couple important things to know about ARB's wiring scheme. First, the harness is designed for Carling-style illuminated switches, so knowing the pinout is critical:
- Terminal 2 is the input* side of the switch (12V in)
- Terminal 3 is the output* side of the switch (12V out), and it is connected internally to the positive side of the "on" light inside the switch
- Terminal 6 is the positive for the instrument light inside the switch (designed to be tied to the wire that supplies power to the dash lights when your lights are on)
- Terminal 7 is the negative for the instrument light inside the switch
- Terminal 8 is the negative for the "on" light inside the switch
*Note: Switches don't normally have input- and output-specific sides. The Carling-style switches do, only because there is an indicator light illuminated when the switch is turned on. If you wire the input and output reversed, the indicator light will always be illuminated (switch on or off makes no difference).
Second, there are actually two safeties built into the circuit. Ignition power goes to Pin 2 on the Isolation Switch. When you turn that on, that ignition power energizes Pin 3 on the Isolation Switch, which then supplies power to Pin 2 on Switch 1. When Switch 1 is turned on, Pin 2 on Switch 1 energizes Pin 3 on Switch 1, which simultaneously energizes Solenoid 1 and Pin 2 on Switch 2. Then, when Switch 2 is turned on, Pin 2 on Switch 2 energizes Pin 3 on Switch 2, which energizes Solenoid 2. Switch 1/Solenoid 1 are supposed to be used for the rear locker and Switch 2/Solenoid 2 are supposed to be used for the front locker, and the system prevents you from using the front locker by itself. Since you're only using one locker, it may not seem like this is important at first thought, but it is. If you use Switch 2 for your locker and don't connect anything to Switch 1, it won't work because Pins 2 and 3 on Switch 1's connectors will always be open (not connected). You either have to install a switch and use all three switches, permanently connect Pins 2 and 3 for Switch 1, or simply don't use Switch 2 and use Switch 1 only. Make sense?
So, since you're using unlighted switches, you simply connect one switch to Pins 2 and 3 of the Isolation Switch harness (Red wire and Red-Yellow wire) and the other switch (for the locker) to Pins 2 and 3 of the Switch 1 harness (Red wire and Yellow wire). All of the other wires to those two switches are unnecessary, as they only supply positive and negative to the lights in the Carling-style switches. Likewise, nothing needs to connect to the five connectors on the Switch 2 harness.
To engage your locker, both the Isolation Switch and Switch 1 will need to be turned on.
