7-25
FAULTY DIAGNOSIS
Fault Code
391
411
412
421
422
423
424
425
426
427
Fault Subject
NGP(Nature Gas Pressure Sensor)
Voltage Low
NGP Higher Than Expected
System Overpressure Fault
CAM(Cam Shaft rpm) Sensor Fault
CRANK(Crank Shaft rpm) Sensor Fault
Engine Timing Config Fault
Engine Overspeed
ECM(Engine Control Module) Chassis
Error
ECM Temperature Alarm
Vehicle Speed Sensor Fault
Conditions of Fault
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
- Adaptive Learn Function is not working
The key is on
“
ON
”
position
- The engine warning lamp is on
- Main Power Interception and Gas Low Pressure Interception
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
- Main Power Interception and Gas Low Pressure Interception
The engine warning lamp is constantly on until the fault is resolved
The key is on
“
ON
”
position
- The engine warning lamp is on
- Main Power Interception and Gas Low Pressure Interception
The engine warning lamp is constantly on until the fault is resolved
The key is on
“
ON
”
position
- The engine warning lamp is on
- Boost Pressure Control Valve is off
- Max throttle = examination is limited
Summary of Contents for BS Series
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