This is the PDS stock wiring diagram, The solenoid wiring does not change when upgrading to 200 amps or 400 amps or 48 volts. The solenoid is wired as the original diagram regardless of amperage or voltage. As I've said before it has no polarity. The 2 small posts are the activation or coil circuit. This circuit has no polarity, only the diode has a polarity. These 2 small terminals require pack voltage to activate and connect the large posts which are the switched circuit... I hope this helps there are colors noted on the original wiring diagram
