Corolla L4-1.8L (2ZZ-GE) (2005)
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Audible Warning Device: Description and Operation
Light Reminder and Key Reminder
System Outline
The current is applied at all times to TERMINAL 5 of the combination meter through the DOME fuse.
When the ignition SW is turned to ON position, the current flows to TERMINAL 4 of the combination meter through the GAUGE fuse. When the light
control SW is turned to TAIL or HEAD position, current is applied to TERMINAL 18 of the combination meter through the TAIL fuse via the TAIL
relay (USA) or the light control SW (Canada).
1. Light Reminder System
When the light control SW is in TAIL or HEAD position, the ignition SW turned to OFF from ON position, and the driver's door opened (Door
courtesy SW on), the current flows to TERMINAL 4 of the combination meter stops. As a result, the combination meter is activated and current
flows from TERMINAL 5 of the combination meter to TERMINAL 2 to GROUND, the buzzer in the combination meter goes on to remind the
light is lighting up.
2. Key Reminder System
When the driver door is opened with the ignition SW off and ignition key remaining in the key cylinder (Unlock warning SW on), a signal is input
from the unlock warning SW to TERMINAL 16 of the combination meter, and from the door courtesy SW front LH to TERMINAL 17 of the
combination meter. As a result, the buzzer in the combination meter goes on and warns the driver that the key is remaining in the key cylinder.
