Rear Window Defogger Signal Check

CHECK REAR WINDOW DEFOGGER SWITCH LAMP
A/C and AV switch self-diagnosis is performed. Refer to A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION . Does rear window defogger switch light?
1. YES: GO TO 2.
2. NO: Replace A/C and AV switch.
CHECK AV COMMUNICATION LINE
AV communication line check is performed. Refer to A/C AND AV SWITCH DOES NOT OPERATE . Is rear window defogger displayed on the display?
1. YES: GO TO 3.
2. NO: Replace display control unit.
CHECK CAN COMMUNICATION LINE
CAN communication line check is performed. Refer to CAN COMMUNICATION LINE INSPECTION .

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