AV Communication Line Check

1. Turn ignition switch OFF.
2. Disconnect display unit connector and AV switch connector.
3. Check continuity between display unit and AV switch.
   CONTINUITY CHECK
   
   

   Terminals				Continuity
   Display unit		AV switch
   Connector	Terminal	Connector	Terminal
   M93	11	M98	6	Yes
   	13		8
   	12		7

   Fig 1: Checking Continuity Between Display Unit And AV Switch

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between display unit and ground.
   CONTINUITY CHECK
   
   

   Terminals			Continuity
   Connector	Terminal	Terminal
   M93	11	Ground	No
   	13

OK or NG 

OK:  GO TO 2.

NG:  Repair harness.

1. Connect display unit connector and AV switch connector.
2. Turn ignition switch ON.
3. Check the signal between display unit harness connector M93 terminals 11,13 and ground with CONSULT-II or oscilloscope.

   11, 13 - Ground: Refer to "TERMINALS AND REFERENCE VALUE FOR DISPLAY UNIT ".

OK or NG 

OK:  Replace AV switch. Refer to "AV SWITCH ".

NG:  Replace display unit. Refer to "REMOVAL AND INSTALLATION ".

Fig 2: Checking Signal Between Display Unit Harness Connector M93 Terminals 11,13 And Ground

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