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How to Use the Diagnostic Scan Tool
When the engine is running, if the fault light on the bottom cover is always on or the service light is
always on/the buzzer is always ringing, it means that there is a fault in the engine. At this time,
connect the scan tool with the corresponding detection port on the engine. Through the APP software
downloaded in the mobile phone, the operating parameters and fault codes of the engine can be
displayed on the mobile phone. Then check the fault code table to determine the fault of the engine
and replace the faulty electrical components.
Service light Fault light
Fault Code Table
Failure type Failure item Code
Intake pressure failure
Short circuit to ground or open circuit in intake
pressure sensor line
107
Short circuit to high level in intake pressure sensor
line
108
Intake air temperature
failure
Short circuit to high level in intake air temperature
sensor line
112
Short circuit to ground or open circuit in intake air
temperature sensor line
113
Water temperature
failure
Short circuit to ground in coolant temperature sensor
line
117
Short circuit to high level in coolant temperature
sensor line
118
Throttle failure
Short circuit to ground in throttle position sensor
line
122
Short circuit to high level in throttle position sensor
line
123
Oxygen sensor failure
Short circuit to ground in oxygen sensor 131
Short circuit to high level in oxygen sensor 132
Oxygen sensor heating
failure
Oxygen heater failure 135
Fuel injector failure
Nozzle line failure of cylinder 1 201
Nozzle line failure of cylinder 2 202
Nozzle line failure of cylinder 3 203
Nozzle line failure of cylinder 4 204
Fuel pump failure
Oil pump relay failure 230
Crankshaft position
sensor failure
Crankshaft position sensor line signal interference 336
Crankshaft position sensor line no signal 337
Ignition coil failure
Ignition coil failure of cylinder 1 351
Ignition coil failure of cylinder 2 352
Idle speed failure
Excessive idle speed
507