Peterbilt Model 320 Operator's Manual after 8-07 - Peterbilt Motors ...

Warning Alarms
PART 4: CONTROLS AND DISPLAYS
NOTE:Inadditiontothewarningmessagesmentioned
in this part - if any of the following conditions
occur after startup and self-test, the multiplex instrumentation
system should be serviced
• The speedometer-message center (SMC)
pointer exhibits windshield wiper-like motion
and the display reads NO DATA
• One or more gauge pointers exhibit wiper-like
motion.
• A gauge pointer stays at zero with its red light
flashing.
• A gauge pointer goes to and remains at a 2:00
position with its red light on steady.
A multiplex instrumentation system alarm can be signalled
by up to four indicators:
• A warning message will appear on the SMC display
(all alarms).
• The light-emitting diode (LED) warning light in the
function’s gauge will go on (all alarms except ABS
and multiplex instrumentation system faults).
• An audible alarm will sound.
• A light bar icon will light.
NOTE:
• Warning messages from system alarms with an
audible alarm can be temporarily overridden by
pressing the Reset switch. You can then press
the Select switch to scroll through other functions
- but the message will reappear in 60 seconds.
The audible alarm will always be on.
• Warning messages from system alarms without
an audible alarm can be dismissed by pressing
the Reset switch. To view dismissed active messages,
turn the ignition off and back on.
An alarm’s warning message on the SMC will preempt all
other SMC displays until the condition that is causing the
alarm is corrected. This 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 conditions
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.
– 18 – Y53-6015 R(08/07)