A/C Amplifier
WARNING: This page is about a different car, the 2001 Suzuki Vitara, 2001 Suzuki Grand Vitara, 2000 Suzuki Vitara, and 2000 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
The A/C amplifier (located on lower evaporator case) controls operation of the A/C compressor clutch and condenser fan motor based on signals from different sensors.