Failure Discription：1.The engine can not start   2.Lots of alarm on the display

Failure Analyce & Trouble shooting：1.ECU fault  2.Shut down signal input  3.Can Bus fault

Repair Procedure：

1.Checked the power supply of EUC , wire number is 130#, checked it from fuse to the connector of ECU. The negative and positive was normal

2.Checked the Can Bus wire, between instrument and ECU, the sistance was normal

3.Checked the shut down signal, the connecting pin of ECU is 45#.there is no voltage,so checked the connecting line 124#, one side of the connected is no power,checked the sheet copper of this wire, it was not contact each other. 

4.Repaired the sheet copper and re-connect it 

Principle & Expierence Summary：Through the drawing and priciple ,checked it step by stepFind the fault cause and solution