Diagnosis Procedure

Regarding Wiring Diagram information, refer to 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 STEP 2 

   NO 

   Repair the terminals or connectors.

2. CHECK FRONT DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY
   
   
   1. Disconnect AV control unit connector M44 and suspect front door speaker connector.
   2. Check continuity between AV control unit connector M44 and suspect front door speaker connector.

      AV control unit		Front door speaker		Continuity
      Connector	Terminal	Connector	Terminal
      M44	34	D12 (LH)	1	Yes
      	35		2
      	43	D112 (RH)	1
      	44		2

   3. Check continuity between AV control unit connector M44 and ground.

      AV control unit		Ground	Continuity
      Connector	Terminal
      M44	34	-	No
      	35
      	43
      	44

   Is the inspection result normal?

   YES 

   GO TO STEP 3 

   NO 

   Repair or replace harness or connectors.

3. CHECK FRONT DOOR SPEAKER SIGNAL
   
   
   1. Connect AV control unit connector M44 and suspect front door speaker connector.
   2. Turn ignition switch to ACC.
   3. Push AV control unit POWER switch.
   4. Check signal between terminals of AV control unit connector M44.

      AV control unit connector M44		Condition	Reference value
      (+)	(-)
      Terminal	Terminal
      34	35	Audio signal output	Courtesy of NISSAN NORTH AMERICA, INC.
      43	44

   Is the inspection result normal?

   YES 

   Replace front door speaker. Refer to REMOVAL AND INSTALLATION .

   NO 

   Replace AV control unit. Refer to REMOVAL AND INSTALLATION .