Audible Warning Device: Description and Operation

The warning chime is controlled by the time control unit.
Power is supplied at all times
^ through 1O A fuse [No. (39) located in the fuse block (in relay box)]
^ to warning chime terminal (1).
Power is supplied at all times
^ through 1O A fuse [No. (33) located in the fuse block (in relay box)]
^ to key switch terminal (1).
Power is supplied at all times
^ through 1O A fuse [No. (3) located in the fuse block (J/B)]
^ to lighting switch terminal (5)
Power is supplied at all times
^ through 10 A fuse [No. (36), located in the fuse block (in relay box)]
^ to time control unit terminal (9).
With the ignition switch in the ON or START position, power is supplied
^ through 10 A fuse [No. (10), located in the fuse block (J/B)]
^ to time control unit terminal (5) and
^ through 15 A fuse [No. (17), located in the fuse block (J/B)]
^ to seat belt warning relay terminal (2).
Ground is supplied to time control unit terminal (15) through body grounds (M3) and (M90).
When a signal, or combination of signals, is received by the time control unit, ground is supplied
^ through time control unit terminal (19)
^ to warning chime terminal (2).
With power and ground supplied, the warning chime will sound.

Ignition key warning chime
With the key in the ignition switch in the OFF position, and the driver's door open, the warning chime will sound.
A battery positive voltage is supplied
^ from key switch terminal (2)
^ to time control unit terminal (10).
Ground is supplied
^ from driver side door switch terminal (1)
^ to time control unit terminal (18).
Driver side door switch terminal (3) is grounded through body grounds (B7) and (B32).

Light warning chime
With ignition switch OFF, driver's door open, and lighting switch in 1ST or 2ND position, warning chime will
sound. A battery positive voltage is supplied
^ from lighting switch terminal (6)
^ to time control unit terminal (6).
Ground is supplied
^ from driver side door switch terminal (1)
^ to time control unit terminal (18).
Driver side door switch terminal (3) is grounded through body grounds (B7) and (B32).

Seat belt warning chime
With the ignition switch turned from OFF to ON and driver's seat belt unfastened, the warning chime will sound
for approximately 7 seconds.

(For U.S.A.)
With the driver's seat belt unfastened, ground is supplied
^ to seat belt warning relay terminal (1)
^ through seat belt switch and body grounds (M3) and (M90).
Seat belt warning relay is energized and ground is supplied for approximately 7 seconds
^ to warning chime terminal (2)
^ through seat belt warning relay terminal (3)
^ to seat belt warning relay terminal (5)
^ through time control unit terminal (16)
^ to time control unit terminal (15)
^ through body grounds (M3) and (M90)

(For Canada)
With the driver's seat belt unfastened, ground is supplied for approximately 7 seconds.
to warning chime terminal (2)
^ through seat belt switch terminal (4)
^ to seat belt switch terminal (2)
^ through time control unit terminal (16)
^ to time control unit terminal (15) through body grounds (M3) and (M90).

WARNING CHIME TIMER
Time control unit controls warning chime operation for ignition key warning, light warning and seat belt warning system.