Daewoo Bus BS Series Owner's Manual page 244

FAULTY DIAGNOSIS
Fault
LAMP
Code
The temperature increase across the aftertreatment diesel
1691 Amber
oxidation catalyst is lower than expected
High voltage detected at sensor supply number 5 circuit in the
1695 Amber
OEM harness
Low voltage detected at sensor supply number 5 circuit in the
1696 Amber
OEM harness
1843 Amber High signal voltage detected at the crankcase pressure circuit
1844 Amber Low signal voltage detected at the crankcase pressure circuit
An error in the EGR delta pressure signal was detected at initial
Amber
1866
key-on or the sensor failed the auto-zero test
High signal voltage detected at the catalyst inlet temperature
1876 Amber
sensor circuit
Low signal voltage detected at the aftertreatment diesel
1877 Amber
particulate filter outlet temperature sensor circuit
The temperature diesel oxidation catalyst inlet temperature
1878 Amber
sensor is not changing with engine operating conditions
High signal voltage detected at the aftertreatment differential
1879 Amber
pressure sensor circuit
Low signal voltage or open circuit detected at the aftertreatment
1881 Amber
differential pressure sensor circuit
The aftertreatment diesel particulate filter differential pressure
sensor is reading an erratic value at initial key-on or during
1883 Amber
engine operation
No communications or invalid data transfer rate detected on the
1893 Amber
J1939 datalink between the ECM and the smart EGR valve
A calibration mismatch between the EGR valve and the ECM
1895 Amber
has been detected
REASON
7-54
EFFECT
None on performance.
Severe derate in power output of the engine.
Limp home power only.
Severe derate in power output of the engine.
Limp home power only.
No engine protection for high crankshaft pressure.
No engine protection for high crankshaft pressure.
EGR valve actuation will be disabled.
None on performance.
None on performance.
None on performance.
Active aftertreatment diesel particulate filter
regeneration will be disabled.
Active aftertreatment diesel particulate filter
regeneration will be disabled.
Active aftertreatment diesel particulate filter
regeneration will be disabled.
EGR valve actuation will be disabled.
EGR valve actuation will be disabled.