Headlight Warning Alarm
The headlight warning alarm will sound if the Light Switch is in the PARK or HEAD position, with the ignition key removed from the ignition cylinder and the LH Front Door opened. Voltage is applied at all times through the Tail Fuse to the Light 1 Relay. When the Light Switch is in the PARK or HEAD position, ground is applied to the coil of Light 1 Relay. This energizes the coil and closes the contacts allowing voltage to flow through Light 1 Relay to the Audio Alarm Module. With the LH Front Door open, a ground signal is provided through the LH Front Door Jamb Switch to the Audio Alarm Module. When both of these conditions are met simultaneously, the Audio Alarm Module activates the headlight warning alarm (approximately one pulse per second). The alarm will continue to sound until either the Light Switch is turned "OFF" or the LH Front Door is closed.