Daewoo Bus BS Series Owner's Manual page 243

Fault
LAMP
Code
Supply voltage to the ECM fell below 3.2 volts momentarily, or
the ECM was not allowed to power down correctly (retain
1117 None
battery voltage for 30 seconds after key OFF)
High voltage detected at accelerator pedal position number 2
1239 Amber
signal circuit
Low voltage detected at accelerator pedal position number 2
1241 Amber
signal circuit
Accelerator position sensor number 1 and number 2 are
1242 Red
reading different values
The inlet and outlet catalyst temperature sensor connections
1663 Amber
are swapped
1664 Amber
The aftertreatment catalyst in the exhaust system is not present
Low signal voltage detected at the catalyst inlet sensor circuit
1665 Amber
High signal voltage detected at the catalyst inlet temperature
1666 Amber
sensor circuit
The aftertreatment diesel oxidation catalyst inlet temperature
1667 Amber
sensor is not changing with engine operating conditions
Low signal voltage detected at the aftertreatment diesel
1674 Amber
particulate filter inlet temperature sensor circuit
High signal voltage detected at the aftertreatment diesel
1675 Amber
particulate filter inlet temperature sensor circuit
The aftertreatment dieselparticulate filter inlet temperature
1676 Amber
sensor is not changing with engine operating conditions
REASON
7-53
EFFECT
Possible no noticeable performance effects or
engine dying or hard starting.
Fault information, trip onformation, and
amintenance monitor data can be inaccurate.
Severe derate in power output of the engine.
Limp home power only.
Severe derate in power output of the engine.
Limp home power only.
The engine will only idle.
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.
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.
Active aftertreatment diesel particulate filter
regeneration will be disabled.
Active aftertreatment diesel particulate filter
regeneration will be disabled.
FAULTY DIAGNOSIS