Blue Bird M380 2003, Owner'S Manual

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M380 Owner’s Manual____________________Maintenance/Service Procedures – Engine, Transmission, Chassis – 5-1
Rev. “F” 5-1-9
Most, but not all, of the electronic fault codes will
light a lamp when they are active. There are three
possible lamps that can be illuminated when a fault
code is active:
The WARNING or CHECK ENGINE lamp is yellow
and indicates the need to repair the fault at the first
available opportunity.
The STOP or STOP ENGINE lamp is red and
indicates the need to stop the engine as soon as it
can be safely done. It is recommended that the
engine remains shut down until the fault can be
repaired.
The MAINTENANCE lamp will illuminate when an
engine maintenance function needs to be
performed.
Some vehicles will also have a WAIT TO START
lamp and a WATER IN FUEL lamp. The WAIT TO
START lamp is illuminated during the preheat time
that takes place at key-on during cold-weather
starting. To minimize cranking time during cold-
weather starting, the engine can
not be cranked
until the WAIT TO START lamp has been
extinguished.
The WATER IN FUEL lamp indicates that the
engine’s fuel-water separator needs to be drained. This task will be performed as soon as possible
whenever this lamp is illuminated. Some vehicle OEMs will combine the functions of the
MAINTENANCE and WATER IN FUEL lamps. In
these cases, the MAINTENANCE lamp indicates a
WATER IN FUEL warning, in addition to other
maintenance indicators.
To check for active engine electronic system fault
codes and maintenance indicator codes, turn the
keyswitch to the OFF position, and move the
diagnostic switch to the ON position, or connect the
shorting plug into the diagnostic connector.
Turn the vehicle keyswitch to the ON position.
If no active fault codes are recorded, both the
WARNING and STOP lamps will illuminate and
stay on.
If active fault codes are recorded, both the
WARNING and STOP lamps will illuminate
momentarily, then begin to flash the codes of the
recorded faults.