A/C Does Not Work

1. AV switch self-diagnosis. Refer to "AV SWITCH SELF-DIAGNOSIS FUNCTION  ".

OK or NG

1. OK: GO TO 2.
2. NG: Check the malfunctioning parts.

1. Check AV communication line. Refer to "AV COMMUNICATION LINE CHECK (BETWEEN DISPLAY CONTROL UNIT AND AV SWITCH)  ".

OK or NG

1. OK: GO TO 3.
2. NG: Check the malfunctioning parts.

1. Check CAN communication line. Refer to "CAN COMMUNICATION LINE CHECK  ".

OK or NG

1. OK: Replace display control unit. Refer to REMOVAL AND INSTALLATION OF NAVI CONTROL UNIT  .
2. NG: After filling out CAN DIAG SUPPORT MONITOR check sheet, GO TO CAN COMMUNICATION .