Models Without Power Door Locks

The warning chime is controlled by the warning chime unit. Power is supplied at all times:
^ through 7.5 A fuse (No. (24) located in the fuse block [HEC])
^ to key switch terminal (1).
Power is supplied at all times:
^ through 1O A fuse (No. (36), located in the fusible link and fuse box)
^ to lighting switch terminal (11).
With the ignition switch in the ON or START position, power is supplied:
^ through 7.5 A fuse (No. (7) located in the fuse block [HEC])
^ to warning chime unit terminal (1).
Ground is supplied to warning chime unit terminal (8) through body grounds (M43), (M44) and (M60). When a signal, or combination of signals, is received by the warning chime unit, the warning chime will sound.

Ignition key warning chime
With the key in the ignition switch in the OFF or ACC position, and the driver's door open, the warning chime will sound. A battery positive voltage is supplied:
^ from key switch terminal (2)
^ to warning chime unit terminal (5).
Ground is supplied:
^ to warning chime unit terminal (7)
^ from front door switch LH terminal (1).
Front door switch LH terminal (3) is grounded through body grounds (B14) and (B17).

Light warning chime
With ignition switch OFF or ACC, 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 (12)
^ to warning chime unit terminal (4).
Ground is supplied:
^ to warning chime unit terminal (7)
^ From front door switch LH terminal (1).
Front door switch LH terminal (3) is grounded through body grounds (B14) and (B17).

Seat belt warning chime
With ignition switch turned ON and seat belt unfastened (seat belt switch ON), warning chime will sound for approximately 6 seconds.
Ground is supplied:
^ to warning chime unit terminal (2)
^ from seat belt switch terminal (1).
Seat belt switch terminal (2) is grounded through body grounds (B14) and (B17).