Man Roland 700 - Washing system

Do not wash the system works. The diagnosis shows the CAN error. What components responsible for the work of washing system?

Errors:

1) CAN; The control unit (master) does not react.
Error code: 0840301
(Trouble with the data transmission to the CAN coupling computer)
2)Process bus: CAN communication computer; Error during data transfer
Error code: 1012204
(Data transfer to the unit can not be)


On PC board (F37V701563) LEDs lit "L" "O"

 

Controller Area Network, you must test the power supply first
then test all cables for CAN, see they are loose, corroded, or faulty
use the DMM for to see if they in short Diagnosis
Remember any circuit in CAN, use differente Baud rate, for Washing, Dryer, etc
maybe you need to make Setting UP.
•shortcircuit
•(CAN_high↔earth, CAN_GND)
•(CAN_low↔earth, CAN_GND)
•(CAN_high↔CAN_low)
•wrongtermination(once, 3-times)
•interruption
•notconnectedto earth
back to me if you do not undertand some tech language