RGB Screen is not Shown

WARNING: This page is about a different car, the 2003 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

CHECK HARNESS
1. Disconnect AV control unit and display connector.
2. Check continuity between AV control unit harness connector M78 terminal 12 (B) and display harness connector M82 terminal 8 (B).
3. Continuity should exist.
4. Check continuity between AV control unit harness connector M78 terminal 13 (W) and display harness connector M82 terminal 5 (W).
  
  Fig 1: Check Harness (RGB Screen Is Not Shown)
  Courtesy of NISSAN MOTOR CO., U.S.A.
5. Continuity should exist.
6. Check continuity between AV control unit harness connector M78 terminal 12 (B), 13 (W) and ground.
  1. Continuity should not exist.
OK or NG

OK >> GO TO 2.

NG >>
- Check connector housings for disconnected or loose terminals.
- Repair harness or connector.
CHECK HORIZONTAL SYNCHRONIZATION SIGNAL
1. Connect AV control unit connector and display connector.
2. Turn ignition switch ON.
3. Check voltage signal between AV control unit harness connector M78 terminals 13 (W) and 10.
  1. 13 (W) - 10 : Refer to " TERMINALS AND REFERENCE VALUE FOR AV CONTROL UNIT " .
Fig 2: Checking Horizontal Synchronization Signal
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK >> GO TO 3.

NG >> Replace display.
CHECK RGB AREA SIGNAL
1. Press "INFO" switch.
2. Check voltage signal between AV control unit harness connector M78 terminals 12 (B) and 10.
  1. 12 (B) - 10 : Refer to " TERMINALS AND REFERENCE VALUE FOR AV CONTROL UNIT " .
OK or NG

OK >> Replace display.

NG >> Replace AV control unit.