SCN board overvoltage error

Error code
  • 190017 SCN board overvoltage error
Occurrence condition
  • The Main Board detected a power circuit failure on the SCN Board.
Assumed cause
  • SCN Board failure
  • Failure of the harness (SCN-M-SCN 20-pin)
  • Main Board failure
  • SUB_M Board failure
Related parts

  • SCN Board

  • 20-pin harness connecting the SUB_M Board and SCN Board

  • Main Board

  • SUB_M Board

  • SCN Unit

Troubleshooting

Step

Confirmation and action

Yes

No

1

Replace the SCN Board

Does the error still occur after replacing the SCN Board?

 Go to step 2 Replace the SCN Board
2

Replace the harness

  • Replace the 20-pin harness connecting the SUB_M Board and SCN Board.
  • Does the error still occur after the harness is replaced?
 Go to step 3 Replace the harness
3 Replace the Main Board
Does the error still occur after replacing the Main Board?		 Go to step 3 Replace the Main Board
4 Replace the SUB_M Board
Does the error still occur after replacing the SUB_M Board?		 Replace the SCN Unit Replace the SUB_M Board