Diesel Data: Automotive Repair

Light Reminder and Key Reminder Buzzer

SYSTEM OUTLINE

1. LIGHT REMINDER SYSTEM
When the ignition SW is OFF and the driver's side door or passenger's side door is opened (Door courtesy SW ON) and the light control SW is at TAIL or HEAD position, the light reminder buzzer comes ON.

2. KEY REMINDER BUZZER SYSTEM
If the driver door is opened with the ignition SW set at the ACC or OFF position and the ignition key remained inserted into the key cylinder (The unlock warning SW is on), the signal from the unlock warning SW is input to TERMINAL KSW of the body ECU and the signal from the door courtesy SW LH is input to TERMINAL DCTY of body ECU. As a result, through communication control of the body ECU etc. the buzzer in the combination meter goes on to warn the driver that the ignition key is still inserted.