Rear Window Defogger Signal Check

AV communication line check is executed. Refer to "CAN COMMUNICATION LINE CHECK ".

Is rear window defogger displayed on the display? 

OK or NG 

OK: GO TO 2.

NG: Replace display control unit. Refer to "DISPLAY CONTROL UNIT ".

CAN communication line check is executed. Refer to "CAN COMMUNICATION LINE CHECK ".

OK or NG 

OK: Check the condition of the harness and the connector.

NG: In addition, it is necessary to check CAN communication line. Refer to "TROUBLE DIAGNOSIS ".