Matrix 4WD L4-1.8L (1ZZ-FE) (2004)
/Page-1307001.png)
Audible Warning Device: Description and Operation
Key Reminder Buzzer and Light Reminder Buzzer
System Outline
The current is applied at all times to TERMINAL 1 of the combination meter through the DOME fuse.
When the ignition SW is turned to ON position, the current flows to TERMINAL 21 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 4 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 21 of the combination meter stops. As a result, the combination meter is activated and current
flows from TERMINAL 1 of the combination meter to TERMINAL 40 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 15 of the combination meter, and from the door courtesy SW front LH to TERMINAL 26 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.
