* Terminal 1 (usually the largest): This is the power input from the ignition system. The switch only activates when the ignition is on.
* Terminal 2 (usually middle size): This terminal provides power to the wiper motor. The switch either connects this terminal to ground (activating the wipers) or leaves it disconnected (wipers off).
* Terminal 3 (usually smallest): This is usually a ground connection. The switch uses this to complete the circuit to ground (and hence activate the motor) when the wiper function is selected.
Important Note: While this is the typical arrangement, it's *crucial* to consult a wiring diagram specific to your Jeep CJ7's year and model. Wiring can vary slightly between years and even with options added by previous owners. Incorrect wiring can damage the switch or other components. A wiring diagram will definitively identify each terminal. You can often find these online through Jeep forums or repair manuals.
