Auto-On Headlight System Description (If Equipped)
WARNING: This page is about a different car, the 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
The auto-on headlight is controlled by BCM (1) and works as follows. Under such conditions as the ignition switch turned ON, the lighting switch (2) turned to the "AUTO" position and the parking brake released, when illuminance to the auto-on headlight sensor (3) becomes lower than the specified value, the headlights and clearance lights are turned ON by BCM. On the other hand, when illuminance to the auto-on headlight sensor becomes higher than the specified value under the same conditions, the headlights and clearance lights are turned OFF by BCM.