Diagnosis Procedure
WARNING: This page is about a different car, the 2011 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit. Refer to "DISPLAY UNIT : DIAGNOSIS PROCEDURE ".
Is the inspection result normal?
YES: GO TO 2.
NO: Repair malfunctioning parts.
- CHECK CONTINUITY COMMUNICATION CIRCUIT
- Turn ignition switch OFF.
- Disconnect display unit connector and AV control unit connector.
- Check continuity between display unit harness connector and AV control unit harness connector.CONTINUITY REFERENCE CHART
Display unit AV control unit Continuity Connector Terminals Connector Terminals M194 11 M172 51 Existed 22 39 - Check continuity between display unit harness connector and ground.CONTINUITY REFERENCE CHART
Display unit Ground Continuity Connector Terminals M194 11 Not existed 12 Is the inspection result normal?
YES: GO TO 3.
NO: Repair harness or connector.
- CHECK COMMUNICATION SIGNAL
- Connect display unit connector and AV control unit connector.
- Turn ignition switch ON.
- Check signal between display unit harness connector and ground.SIGNAL REFERENCE CHART
(+) (-) Condition Reference value Display unit Connector Terminal M194 11 Ground When adjusting display brightness. Is the inspection result normal?
YES: GO TO 4.
NO: Replace AV control unit. Refer to "EXPLODED VIEW ".
- CHECK COMMUNICATION SIGNAL
Check signal between display unit harness connector and ground.
SIGNAL REFERENCE CHART(+) (-) Condition Reference value Display unit Connector Terminal M194 22 Ground When adjusting display brightness. Is the inspection result normal?
YES: INSPECTION END
NO: Replace display unit. Refer to "EXPLODED VIEW ".