Daewoo Bus BS Series Owner's Manual page 250

FAULTY DIAGNOSIS
Fault
LAMP
Code
Aftertreatment Exhaust Gas Temperature 2 - Data Valid but
2743 None
Below Normal Operating Range - Moderately Severe Level
Excessive black smoke has been detected exiting the engine
2754 Amber
and entering the aftertreatment diesel particulate filter
High exhaust gas pressure has been detected by the
2765 Amber
exhaust gas pressure sensor
Plugged EGR differential pressure sensor tubes have been
2774 Amber
detected
2961 None
EGR temperature has exceeded the engine protection limit
2962 Amber
EGR temperature has exceeded the engine protection limit
Engine coolant temperature is above the engine coolant
2963 None
temperature engine protection warning limit
Intake manifold air temperature signal indicates intake manifold
2964 None
air temperature is above engine protection warning limit
The ECM has detected an intake manifold pressure signal
2973 Amber
that is too high or low for current engine operating conditions
REASON
7-60
EFFECT
None on performance.
None on performance.
Fueling derate to bring exhaust gas pressure
below the maximum operating limits.
EGR valve actuation will be disabled.
Slight fueling derate to bring EGR temperature
under the maximum limit.
Severe fueling derate to bring EGR temperature
under the maximum limit.
Power derate and possible engine shutdown if
engine protection shutdown feature is enabled.
Progressive power derate increasing in severity
from time of alert.
Engine power derate.