Diagnosis Procedure

Regarding Wiring Diagram information, refer to the appropriate Wiring Diagram .

1. CONNECTOR CHECK 

   Check the AV control unit and speaker connectors for the following:

   • Proper connection
   • Damage
   • Disconnected or loose terminals

   Is the inspection result normal?

   YES

   GO TO 2 .

   NO

   Repair the terminals or connectors.

2. CHECK REAR DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY 
   1. Disconnect AV control unit connector M97 and suspect rear door speaker connector.
   2. Check continuity between audio unit connector M171 and suspect rear door speaker connector.
      CREW CAB
      
      

      Audio unit		Rear door speaker		Continuity
      Connector	Terminal	Connector	Terminal
      M171	4	D207 (LH)	1	Yes
      	5		2
      	13	D307 (RH)	1
      	14		2

      KING CAB®
      
      

      Audio unit		Rear door speaker		Continuity
      Connector	Terminal	Connector	Terminal
      M171	4	B4 (LH)	1	Yes
      	5		2
      	13	B120 (RH)	1
      	14		2

   3. Check continuity between AV control unit connector M97 and ground.

      AV control unit		Ground	Continuity
      Connector	Terminal
      M97	4	-	No
      	5
      	13
      	14

   Is the inspection result normal?

   YES

   GO TO 3 .

   NO

   Repair or replace harness or connectors.

3. CHECK REAR DOOR SPEAKER SIGNAL 
   1. Connect AV control unit connector M97 and suspect rear door speaker connector.
   2. Turn ignition switch to ACC.
   3. Push AV control unit POWER switch.
   4. Check signal between AV control unit connector M97 and ground.

      AV control unit connector M97		Condition	Reference value
      (+)	(-)
      Terminal	Terminal
      4	5	Audio signal output	Courtesy of NISSAN NORTH AMERICA, INC.
      13	14

   Is the inspection result normal?

   YES

   Replace rear door speaker. Refer to Removal and Installation .

   NO

   Replace AV control unit. Refer to Removal and Installation .