Rear Window Defogger Signal Check

AV communication line check is executed. Refer to "CAN COMMUNICATION SYSTEM DESCRIPTION ".

1. Is rear window defogger displayed on the display? 

OK or NG

1. OK: GO TO 2.
2. NG: Replace display control unit. Refer to "REMOVAL AND INSTALLATION OF DISPLAY UNIT ".

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

OK or NG

1. OK: Check the condition of the harness and the connector.
2. NG: In addition, it is necessary to check CAN communication line. Refer to "CAN COMMUNICATION ".