Daewoo Bus BS Series Owner's Manual page 219

Fault Code Fault Subject
731 Overboost
732 Boost Air Regulator Set Point Fault
Wastegate Control Valve Pressure Fault
733
Boost Air Pressure Voltage High Fault
734
Boost Air Pressure Voltage Low Fault
735
741
Oil Pressure Low
751
Injector Duty Cycle Too High
NGT(Nature Gas Temperature Sensor)
771
Lower Than Expected
IVS(Idle Validation System) Higher
781
Than Expected
IVS(Idle Validation System) Lower Than
791
Expected
TPS(Throttle Position Sensor) Voltage
811
Lower Than Expected
Conditions of Fault
The key is on "ON" position
- The engine warning lamp is on
- Boost pressure is reduced
- Boost Pressure Fault Limp Home Mode
The key is on "ON" position
- The engine warning lamp is on
The key is on "ON" position
- The engine warning lamp is on
The key is on "ON" position
- The engine warning lamp is on
The key is on "ON" position
- The engine warning lamp is on
- Boost Pressure Control Valve is off
The key is on "ON" position
- The engine warning lamp is on
- Adaptive Learn Function is not working
The key is on "ON" position
- The engine warning lamp is on
The key is on "ON" position
- The engine warning lamp is on
- Adaptive Learn Function is not working
- Accelerator Restrictions
The key is on "ON" position
- The engine warning lamp is on
- Adaptive Learn Function is not working
- Limited fuel supply
7-29
FAULTY DIAGNOSIS