Diagnosis Procedure

WARNING: This page is about a different car, the 2008 Infiniti M45 and 2008 Infiniti M35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONTINUITY VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front display unit connector and AV control unit connector.
3. Check continuity between front display unit harness connector terminal 20 and AV control unit harness connector terminal 101.
  20 - 101: Continuity should exist.
4. Check continuity between front display unit harness connector terminal 20 and ground.
  20 - Ground: Continuity should not exist.
Is the inspection result normal?

Yes: GO TO 2.

No: Repair harness or connector.

CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL

Connect front display unit connector and AV control unit connector.
Turn ignition switch ON.

Check signal between front display unit harness connector terminal 20 and ground.

SIGNAL TABLE

20 - Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal?

Yes: Replace AV control unit.

No: Replace front display unit.