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J1708 data bus. Other LEDs light as determined by Interface Module programming,
and some warning LEDs are not used. Column 3 lists the condition that causes the
warning LED to light.
You cannot dismiss or override red warning LED indications. A red warning LED
will remain on until the condition causing it is corrected.
Note - Not all gauges listed are currently available.
Messages advising of unsafe operating conditions can appear in the SMC. Examples
are a major engine or transmission problem (low oil pressure, high temperature, low
coolant level) and a problem with the brake safety (low air pressure). An audible
alarm will accompany these warning messages.
Vehicle safety warning messages are listed in Table 2-2 on page 2-6. Column 1 shows
the warning message as it appears in the SMC, and column 2 identifies its meaning.
Column 3 identifies the gauge whose red warning LED lights. Column 4 shows the
associated Reset message.
You can temporarily override vehicle safety warning messages two ways:
1. Press the Reset switch for 3 seconds. This will dismiss the message and silence
the buzzer. If an active alarm still exists, the message and buzzer will return.
2. Press the Reset switch for 1 second, then press the Select switch to display any
other function. The warning message will disappear for 60 seconds. It will then
reappear and remain until the condition causing it is corrected. The audible
alarm will continue to sound.
A system fault message indicates a problem exists with the Model 387 Instrument
System that does not directly affect vehicle safety. These occur when the ignition is
first switched on. The messages are:
IM CAL, IM CFG, IM DIAG, IM LIN, IM SLFT, ODO ERR, NO DATA, SMC MEM.
System fault messages are detected by the Interface Module or the SMC. No gauge
LED is associated with them, no audible warning will sound, and no Reset message
will appear.
The NO DATA message can occur any time, not just during System Initialization.
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