Dodge RAM TRUCK 1500 1995 Service Manual page 673

B R
8W-46 MESSAGE CENTER 8W - 46 - 1
MESSAGE CENTER
MESSAGE CENTER
Power for the message center is supplied on circuit
F14. This circuit is H O T i n the START and R U N po­
sition and protected by a 15 amp fuse located i n cav­
i t y 12 of the fuse block.
Power for the fuse is supplied on circuit A 2 1 from
the ignition switch. Power for the A 2 1 circuit is sup­
plied on circuit A l . This circuit originates i n the
Power D i s t r i b u t i o n Center (PDC) and is protected by
a 40 amp fuse located i n cavity 3.
The Powertrain Control Module (PCM) controls the
ground p a t h for the lamps i n the message center.
Circuit G14 is connected f r o m the message center
to the P C M and is used for the transmission w a r n i n g
lamp. This circuit connects to cavity 31 of the P C M
on a l l engine packages except for the 8.0L. O n the
8.0L the G14 circuit connects to cavity 36 of the
PCM.
Circuit G85 is connected from the message center
to the P C M and is used for the WAIT-TO-START
lamp. The WAIT-TO-START lamp is only used on ve­
hicles w i t h the diesel engines. Circuit G85 connects
to cavity 36 of the P C M .
Circuit G86 is connected f r o m the message center
to the P C M and is used for the W A T E R - I N - F U E L
lamp. The W A T E R - I N - F U E L lamp is only used on ve­
hicles equipped w i t h the diesel engine. C i r c u i t G86
connects to cavity 35 of the P C M .
HELPFUL INFORMATION
• Check the 40 amp fuse located i n cavity 3 of the
PDC
• Check the 15 amp fuse located i n cavity 12 of the
fuse block
• Refer to the appropriate section of the service
m a n u a l or the diagnostic test procedures m a n u a l
DIAGRAM INDEX
Component Page
Airbag Control Module 8W-46-2
Fuse 3 (PDC) 8W-46-2
Fuse 12 (PDC) 8W-46-2
Ignition Switch 8W-46-2
Message Center .8W-46-2
Powertrain Control Module . . . . . . . . . . . . . . . . . .8W-46-2