2. Check RGB Synchronizing Signal

WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

Connect AV control unit connector and display connector.
Turn ignition switch ON.
Check voltage signal between AV control unit harness connector M78 terminals 15 (L/R) and 10.

Fig 1: Checking RGB Synchronizing Signal
Courtesy of NISSAN MOTOR CO., U.S.A.

15 (L/R) - 10: Refer to TERMINALS AND REFERENCE VALUE FOR AV CONTROL UNIT .

OK or NG

OK: Replace display.
NG: Replace AV control unit.