Fault Codes:XCMG General E4020
Fault Description:
CAN communication failure
Fault Location:
Controller class
Fault Cause:
1. The fuse of the controller is burned out. \ n2. There is an open circuit or short circuit in the high and low CAN lines. \ n3. The pins of the controller CAN port are bent. \ n4. There is a problem with the underlying program of the instrument (found in the XE135G 5.7-inch instrument, which has been resolved).
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