Color of RGB Image is Not Proper (Only NAVI Screen Looks Yellowish)

WARNING: This page is about a different car, the 2005 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

CHECK RGB HARNESS

Turn ignition switch OFF.
Disconnect NAVI control unit connector B151 and display control unit connector M95.
Check continuity between NAVI control unit and display control unit.

Check continuity between NAVI control unit and ground.

Fig 1: Checking Continuity Between NAVI Control Unit And Display Control Unit And Ground

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

When the screen looks yellowish .

CHECKING CONTINUITY BETWEEN NAVI CONTROL UNIT AND DISPLAY CONTROL UNIT

Terminals				Continuity
NAVI control unit		Display unit
Connector	Terminal (Wire color)	Connector	Terminal (Wire color)
B151	15 (B)	M95	48 (B)	Yes
B151	17	M95	45	Yes

CHECKING CONTINUITY BETWEEN NAVI CONTROL UNIT AND GROUND

Terminals			Continuity
NAVI control unit		-
Connector	Terminal (Wire color)	-
B151	15 (B)	Ground	No
B151	17	Ground	No

OK or NG

OK: GO TO 2.
NG: Repair harness or connector.

CHECK RGB SIGNAL
1. Connect NAVI control unit connector and display control unit connector.
2. Turn ignition switch ON.
3. Display "Color bar" by "CONFIRMATION/ADJUSTMENT" mode.
4. Check signal between NAVI control unit connector B151 terminal 15 (B) and 17 with CONSULT-II or oscilloscope.
  
  Fig 2: Checking Signal Between NAVI Control Unit Connector B151 Terminal 15 (B) And 17
  Courtesy of NISSAN MOTOR CO., U.S.A.
  - When the screen looks yellowish .
    Voltage signal between NAVI control unit connector B151 terminal 15 (B) and 17.
    
    15 (B) - 17: Refer to " TERMINALS AND REFERENCE VALUE FOR NAVI CONTROL UNIT ".
OK or NG
- OK: Replace display control unit. Refer to "REMOVAL AND INSTALLATION OF DISPLAY CONTROL UNIT ".
- NG: Replace NAVI control unit. Refer to "REMOVAL AND INSTALLATION OF NAVI CONTROL UNIT ".