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 RGB (R: RED) 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 17 and AV control unit harness connector terminal 93.
  17 - 93: Continuity should exist.
4. Check continuity between front display unit harness connector terminal 17 and ground.
  17 - Ground: Continuity should not exist.
Is the inspection result normal?

Yes: GO TO 2.

No: Repair harness or connector.

CHECK RGB (R: RED) SIGNAL

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

Check signal between front display unit harness connector terminal 17 and ground.

SIGNAL REFERENCE TABLE

Terminal	Condition		Reference value
17 - Ground	Ignition switch ON	Start confirmation/adjustment mode, and then display color bar by selecting "Color Spectrum Bar" on DISPLAY DIAGNOSIS screen.	Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal?

Yes: Replace front display unit.

No: Replace AV control unit.