Peterbilt 320 - Page 97

PART 7: STARTING & OPERATING THE VEHICLE
PB1319 (CAT. NO. 5296 ) —95— 22-01691 (R02/02)
preemption includes other warning messages from earlier alarms - and
some of these alarms may not have other indicators. Therefore, it is
very important that you check the SMC to be aware of all alarm condi-
tions that may exist in your vehicle’s systems - especially during the
start-up procedure. A summary of alarms and indicators is at the end of
this part. Follow this procedure to check all SMC warning messages.
1. Observe the first message displayed after the SMC comes on.
• If the odometer is displayed, continue with the start-up procedure.
• If a warning message is displayed instead of the odometer, it is
being generated by the multiplex instrumentation system:
-Look in the summary to identify the alarm (gauge).
-Go to the description of that gauge in PART 4: CONTROLS AND
DISPLAYS and take the actions indicated to correct the condi-
tion.
2. Continue to check and act on all warning messages until the
odometer is displayed.
Multiplex Instrumentation System Alarm Summary
Display
Activation
Condition
Gauge LED Buzz
Deactivation
Display
H2O TMP Coolant temp. is high
Engine Water
Temperature
yes H2OT OK
IM CAL System Fault None no None
IM CFG System Fault None no None
IM DIAG System Fault None no None
IM LIN System Fault None no None
IM SLFT System Fault None no None
LOW AIR1
Low air pressure in
air tank #1
Primary air
pressure
yes AIR1 OK
LOW AIR2
Low air pressure in
air tank #2
Secondary air
pressure
yes AIR2 OK
LO WATER Coolant level is low
Engine Water
Level
yes WATER OK
NO DATA System Fault None no None
ODO ERR System Fault None no None
OIL TMP
Engine oil tempera-
ture is high
Engine Oil
Temperature
yes OILT OK
OIL PRES
Engine oil pressure is
low
Engine Oil
Pressure
yes OIL OK
SMC MEM System Fault None no None
TRANTMP
Main transmission oil
temperature is high
Main Transmission
Oil Temperature
yes TRAN OK