Daewoo Bus BS Series, Owner'S Manual, Page: 248 / 260

7-58
FAULTY DIAGNOSIS
Fault
Code
LAMP REASON EFFECT
2359
2363
2367
2373
2374
2375
2376
2377
2387
2412
2448
2449
2451
2554
2634
2635
Amber
Amber
Amber
Amber
Amber
Amber
Amber
Amber
Amber
Amber
Mainte-
nance
Red
None
None
Red
Red
The EGR differential pressure sensor has detected high EGR
gas flow or the EGR differential pressure reading is not valid
for engine operating conditions
Low voltage detected at the engine brake solenoid number 2
signal circuit
Low voltage detected at the engine brake solenoid number 2
signal circuit
High signal voltage detected at the exhaust gas pressure
circuit
Low signal voltage detected at the exhaust gas pressure circuit
High signal voltage detected at EGR temperature circuit
Low signal voltage detected at EGR temperature circuit
Open circuit or high voltage detected at the fan control circuit
The smart VGT controller has detected incorrect stop limits,
or the VGT is unable to move to the closed position
The fan speed signal has been lost
Low engine coolant level detected
The VGT has failed the automatic calibration procedure at
initial key-on. VGT will be in the open position
Turbocharger turbine inlet temperature has exceeded the
engine protection limit
The exhaust gas pressure sensor is reading an erratic value
at initial key-on
An internal error has been detected by the smart VGT controller
A calibration mismatch between the VGT actuator and the
ECM has been detected
EGR valve actuation will be disabled.
Engine brake on cylinders number 4, 5, and 6
can not be ctivated.
Engine brake on cylinders number 4, 5, and 6
can not be deactivated, or can be activated.
None on performance.
None on performance.
EGR valve actuation will be disabled.
EGR valve actuation will be disabled.
The fan may stay on continuously or not run at all.
VGT travel may be limited.
The fan will only be in the ON or OFF position.
None on performance.
Low intake manifold pressure.
Fuel is limited in an attempt to decrease the calculated
exhaust gas temperature entering the turbocharger.
The ECM will estimate the exhaust gas pressure.
VGT actuation will be disabled.
VGT actuation will be disabled.