Weichai Flash Code For Euro 3 PDF [PDF]

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Fault Type



Revelant parts



Problem description



ECU Supply AD transverter ECU Singial fault, Engine hard error start, not start;



1-1-1 1-1-2 1-1-3



1-1-5



Engine stoped,cannot start;



The key(T15) switch off for one minute,if the problem exist, change the ECU;



Engine low power



The key(T15) switch off for one minute,if the problem exist, change the ECU;



T50 switch error



1-2-4



Battery



1-2-5



FMTC error



ECU internal Sensor voltage module



1-3-1 1-3-1 1-3-2



Main rely error 1-3-2 1-3-3



Common rail sensor Common rail system relevant parts



1-3-5 1-3-6



Common rail pressure limiting valve problem; flow metering unit problem



Common rail parts



Common rail pressure limiting valve



1-4-1



No. 1 injector error



1-4-2



No. 2 injector error



1-4-3



No. 3 injector error



1-4-4



injectors



No. 4 injector error



1-4-5



No. 5 injector error



1-4-6



No. 6 injector error



1-5-1 1-5-2 1-5-3



ECU cannot work normal



The wire damaged,the starter rely damaged; T15 pin damaged, short circuit



check the wire and the starter rely; check T15 switch



Switch continious open for 2 minutes



check T50 switch



The voltage for the battery is too hige(>36V) or too low (2650rpm)



2-2-6 2-2-7



check the wire,or change the accelerator pedal sensor;



limp home mode



sensor error, or wire short circuit、open circuit;



this sensor is in the ecu,check if stock; check the air intake sensor wire , change the sensor in necessary; check the water temperature sensor, or change the sensor in necessary;



overheat limit the power



check the cooling system



check the sensor wire, change the sensor, check the lubrication system;



water temperature sensor test



2-4-5 2-5-1 2-5-2 2-5-3 2-5-4



Rail pressure monitor



low fuel system and high fuel systme problem



Hard start; limp home mode;he common rail pipe pressure limited valve open



fuel intake resistance is high,fuel pipe have someplace leakage; fuel return resistance is high



check the fuel system;change the filter and pipes in necessary;



ECU



ECU system recovery



limp home mode;the common rail pipe pressure limited valve open



ECU interval error



interrupte the power supply and then restart,if problem still exist,change the ECU



2-5-5 2-5-6 2-5-7 2-6-1 2-6-2 2-6-3 2-6-4



Over speed monitor



Ecu interal hadware moitoring



ECU moitoring



change the ECU



2-6-5 3-1-1 3-1-1



Exhaust valve brake



exhaust valve out of function



Exhaust valve brake （2.03） and the power supply has short circuit Exhaust valve brake （2.03） and the ground has short circuit



check the wire of the exhuast valve brake



_____________________________________________________________________________ Grupo Kaula www.grupokaula.com.br Telefone 11 4257-2118



Exhaust valve brake disconnect



3-1-1 3-1-2



fan magnetic valve



3-1-2



fan rely



3-1-2



fan speed sensor



3-1-3



fan magnetic valve pin (2.01) disconnect



check the fan magnetic valve wire



cannot check the fan speed



1.67/1.68/1.69 wire open circuit or short circuit



check the fan speed wire



Air condition compressor rely



Air condition compressor out of function



wire connect error



check the compressor and its wire



Air intake heater rely



air intake heater out of function



rely directly connect to the ground or battery



check the air intake rely wire



3-2-1 3-2-2 3-2-3 3-2-4



Switches and functions related to the vehicle in ECU



3-2-7



the vehicile cannot get into check the speed sensor wire, change the speed sensor cruise speed senor in necessary; _____________________________________________________________________________ Grupo Kaula www.grupokaula.com.br Telefone 11 4257-2118 polymorphic switch low power wire or resistance error check polymorphic switch



3-3-1



system light



3-3-2



cold start light



3-3-2



warning light



3-3-4



water in the fuel light



3-3-4



warning light



3-4-1



the lighe out of function



wire error or disconnect



cruise switch



cannot go into cruise/PTO



switch error



3-4-2



Exhaust valve brake switch



Exhaust valve brake out of function



check the wire or change the switch



3-4-3



start under the vechicle switch



start under the vechicle out of function



check the wire or change the switch



5-1-1



No.1 cylinder out of fire



5-1-2



No.2 cylinder out of fire



5-1-3 engine out of fire test



5-1-4 5-3-1 5-3-2



engine low power; speed instablity



No.3 cylinder out of fire Muti- cylinder out of fire



check the wire and the light



check the injector,cylinder head gasket;valve clearance



No.4 cylinder out of fire



external test



No.5 cylinder out of fire



5-3-3



No.6 cylinder out of fire



5-2-1 external test



5-2-2 5-2-3 5-4-1



start related



synconisation siginal problem



_____________________________________________________________________________ Grupo Kaula www.grupokaula.com.br Telefone 11 4257-2118



change the flywheel