Dodge RAM TRUCK 1500 1995 Service Manual page 667

8W - 44 - 2 8W-44 INTERIOR LIGHTING
B R
is HOT at all times. The ground path for the lamp is
provided on circuits M3 and Z3.
When the operator turns the cargo lamps ON, cir­
cuit M3 connects from the lamps to the headlamp
switch. The ground path passes through the switch
to circuit Z3.
KEY-IN SWITCH
For operation of the key-in switch refer to the cir­
cuit descriptions for the buzzer module in this sec­
tion.
SEAT BELT SWITCH
For operation of the seat belt switch refer to the
circuit descriptions for the buzzer module in this sec­
tion.
BUZZER MODULE
The buzzer module sounds an audible warning
tone. The tone sounds for seat belt warning, when
the ignition key is in the ignition switch while the
drivers door is OPEN, or the headlamps are left ON
with the drivers door open. The tone also sounds
when the ignition key is in the ON position while the
drivers side seat belt is not buckled. Refer to Group
8U for buzzer module operation.
Power for the buzzer module is supplied on circuit
Ml from fuse 17, a 15 amp, in the fuse block. This
fuse is the Ignition-Off Draw fuse (IOD) and is HOT
at all times. Power for the fuse is supplied on circuit
A7. This circuit is protected by a 50 amp fuse located
in cavity 1 of the Power Distribution Center (PDC).
When the parking lamps or headlamps are ON, the
headlamp switch connects circuit G16 from the driv­
ers side door jamb switch to circuit G26. Circuit G26
connects to the buzzer module and the key-in switch.
Circuit G16 from the drivers side door jamb switch
also connects to the key-in switch.
Circuit G13 from the buzzer module powers the
seat belt warning lamp in the instrument cluster.
Circuit Z3 at the instrument cluster provides ground
for the lamp.
Circuit G10 from the buzzer module connects to the
seat belt switch. When the seat belt switch closes a
path to ground is completed on circuit Z3. Circuit Z3
also grounds the buzzer module.
HELPFUL INFORMATION
© Check the 15 amp fuse in cavity 17 of the fuse
block
• Check the 50 amp fuse located in cavity 1 of the
PDC
® Check the door jamb switches for a good ground
• Check the lamp filaments
• For the day/night mirror, check the back-up lamp
switch, the 10 amp fuse in cavity 15 of the fuse
block, and the 40 amp fuse in cavity 2 of the PDC
DIAGRAM
INDEI
Component
;
Page
Buzzer Module 8W-44-5
Cargo Lamps .8W-44-3
Day/Night Mirror .8W-44-7
Dome Lamp .8W-44-3
Fuse 1 (PDC) 8W-44-3, 5, 6
Fuse 2 (PDC) 8W-44-7
Fuse 3 (PDC) .8W-44-4
Fuse 11 (Fuse Block) .8W-44-4
Fuse 15 (Fuse Block) .8W-44-7
Fuse 17 (Fuse Block) 8W-44-3, 5, 6
Glove Box Lamp 8W-44-6
Headlamp Switch .8W-44-3, 5
Ignition Switch 8W-44-4, 7
Ignition Switch Lamp .8W-44-3
Key-In Switch .8W-44-5
Overhead Console 8W-44-4
Seat Belt Switch 8W-44-5
Time Delay Relay .8W-44-3
Underhood Lamp .8W-44-6