Dodge RAM TRUCK 1500 1995 Service Manual page 522

B R — — — ——— CHIME/BUZZER WARNING SYSTEMS 8U - 1
CONTENTS
page
page
ilAGNOSIS . 2 SERVICE PROCEDURES . . . . . . . . . . . . . . . . . . . . 4
GENERAL INFORMATION .. 1
G E N E R A L INFORMATION
This group covers the buzzer warning system,
which is standard equipment on Ram truck models.
The system provides an audible warning to the
driver when it monitors the following conditions:
• key is in ignition switch with the driver's door
open
• head or park lamps are on with driver's door open
• driver's seat belt is not buckled with ignition
switch in ON position.
Following are general descriptions of the major
components in the buzzer warning system. Refer to
Group 8 W - Wiring Diagrams for complete circuit de­
scriptions and diagrams.
BUZZER MODULE
The buzzer module is located on the fuseblock mod­
ule (Fig. 1). It receives battery voltage at all times
from fuse 17 in the fuseblock module. It also receives
a second battery feed through fuse 11 when the igni­
tion switch is in the ON or START position.
Other inputs to the module include the driver's
door jamb switch, the driver's seat belt switch, the ig­
nition key-in switch, and the headlamp switch. The
only output of the module is a timed 4 to 8 second
feed to the seat belt reminder lamp in the instru­
ment cluster. The timer function begins after the ig­
nition switch is turned to the ON position.
The buzzer module can not be repaired. If faulty, it
must be replaced.
DRIVER'S DOOR JAMB SWITCH
The driver's door jamb switch is mounted to the
driver's door hinge pillar. The switch closes a path to
ground for the buzzer module through the key-in
switch or headlamp switch when the driver's door is
opened, and opens when the driver's door is closed.
This switch can not be repaired. If faulty, it must be
replaced.
IGNITION KEY-IN SWITCH
The key-in switch is integral to the ignition switch,
which is mounted on the right side of the steering
BUZZER
MODULE
Fig. 1 Buzzer Module
column. It closes a path to ground for the buzzer
module when the ignition key is inserted in the igni­
tion lock cylinder and the driver's door jamb switch
is closed (door open). The switch opens when the key
is removed from the ignition lock cylinder. This
switch can not be repaired. If faulty, the entire igni­
tion switch must be replaced. Refer to Group 8D - Ig­
nition Systems for service procedures.
HEADLAMP SWITCH
The headlamp switch is located in the instrument
panel. It closes a path to ground for the buzzer mod­
ule when the park or headlamps are on and the driv­
er's door jamb switch is closed (door open). The
switch opens the ground path when the park and
headlamps are turned off. The headlamp switch can
not be repaired. If faulty, it must be replaced. Refer
to Group 8E - Instrument Panel and Gauges for ser­
vice procedures.
DRIVER'S SEAT BELT SWITCH
The driver's seat belt switch is integral to the driv­
er's seat belt buckle-half assembly. The switch is nor­
mally closed, providing a ground path to the buzzer
CHIME/BUZZER WARNING SYSTEMS