Unable to Operate All of AV Switches (Unable to Start Self-Diagnosis)
WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for AV switch. Refer to "POWER SUPPLY AND GROUND CIRCUIT CHECK FOR AV SWITCH ".
OK or NG
- OK: GO TO 2.
- NG: Check the malfunctioning parts.
- AV SWITCH SELF-DIAGNOSIS
AV switch self-diagnosis. Refer to "AV SWITCH SELF-DIAGNOSIS FUNCTION ".
OK or NG
- OK: GO TO 3.
- NG: Check the malfunctioning parts.
- CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for display control unit. Refer to "POWER SUPPLY AND GROUND CIRCUIT CHECK FOR DISPLAY CONTROL UNIT ".
OK or NG
- OK: GO TO 4.
- NG: Check the malfunctioning parts.
- CHECK COMMUNICATION LINE
Check communication line. Refer to "AV COMMUNICATION LINE CHECK (BETWEEN DISPLAY CONTROL UNIT AND AV SWITCH) ".
OK or NG
- OK: Replace AV switch. Refer to "REMOVAL AND INSTALLATION OF AV SWITCH ".
- NG: Replace display control unit. Refer to "REMOVAL AND INSTALLATION OF DISPLAY CONTROL UNIT ".