7-29
FAULTY DIAGNOSIS
Fault Code
731
732
733
734
735
741
751
771
781
791
811
Fault Subject
Overboost
Boost Air Regulator Set Point Fault
Wastegate Control Valve Pressure Fault
Boost Air Pressure Voltage High Fault
Boost Air Pressure Voltage Low Fault
Oil Pressure Low
Injector Duty Cycle Too High
NGT(Nature Gas Temperature Sensor)
Lower Than Expected
IVS(Idle Validation System) Higher
Than Expected
IVS(Idle Validation System) Lower Than
Expected
TPS(Throttle Position Sensor) Voltage
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
Summary of Contents for BS Series
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