All Images Are Not Displayed

Symptom: RGB image is not displayed.

1. CHECK CONDITION 

   When operating audio and air conditioner, make sure that they operate correctly.

   Do audio and air conditioner operate normally? 

   YES : GO TO 2.

   NO : GO TO  5.

2. CHECK DISPLAY GROUND CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect display connector.
   3. Check continuity between display harness connector M63 terminal 1 and ground.

      1 - Ground : Continuity should exist. 

   OK or NG 

   OK : GO TO 3.

   NG : Repair harness or connector.

   Fig 1: Identifying Continuity Between Display Harness Connector M63 Terminal 1 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. CHECK HARNESS 
   1. Disconnect display control unit connector.
   2. Check continuity between display control unit harness connector (A) M75 terminals 2, 4, 5, 7 and display harness connector (B) M63 terminals 2, 3, 13, 14.

      2 - 2 : Continuity should exist. 

      4 - 3 : Continuity should exist. 

      5 - 13 : Continuity should exist. 

      7 - 14 : Continuity should exist. 

   3. Check continuity between display control unit harness connector (A) M75 terminals 2, 4 and ground.

      2, 4 - Ground : Continuity should not exist. 

      Fig 2: Identifying Continuity Between Display Control Unit Harness Connector (A) M75 Terminals 2, 4 And Ground

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

   OK or NG 

   OK : GO TO 4.

   NG : Repair harness or connector.

4. CHECK DISPLAY POWER SUPPLY AND GROUND CIRCUIT (INVERTER AND SIGNAL) 
   1. Connect display control unit and display connectors.
   2. Turn ignition switch ON.
   3. Check voltage between display control unit harness connector M75 terminals 2 and 5.

      2 - 5 : Approx. 9 V 

      Fig 3: Identifying Voltage Between Display Control Unit Harness Connector M75 Terminals 2 And 5

      Courtesy of NISSAN MOTOR CO., U.S.A.
   4. Check voltage between display control unit harness connector M75 terminals 4 and 7.

      4 - 7 : Approx. 9 V 

   OK or NG 

   OK : Replace display.

   NG : Replace display control unit.

   Fig 4: Identifying Voltage Between Display Control Unit Harness Connector M75 Terminals 4 And 7

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. CHECK DISPLAY CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT 
   1. Check voltage between display control unit harness connector terminals and ground.
      TERMINAL VOLTAGE CHART
      
      

      Terminals			OFF	ACC	ON
      (+)		(-)
      Connector	Terminal
      M75	1	Ground	Battery voltage	Battery voltage	Battery voltage
      	10		0 V	Battery voltage	Battery voltage

      Fig 5: Identifying Voltage Between Display Control Unit Harness Connector Terminals And Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.
   2. Turn ignition switch OFF.
   3. Disconnect display control unit connector.
   4. Check continuity between display control unit harness connector M75 terminal 3 and ground.

      3 - Ground : Continuity should exist. 

   OK or NG 

   OK : Replace display control unit.

   NG : Repair harness or connector.

   Fig 6: Identifying Continuity Between Display Control Unit Harness Connector M75 Terminal 3 And Ground

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