Diagnosis Procedure

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

1. CONNECTOR CHECK 

   Check the AV control unit, audio amp. 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 (AUDIO AMP.) 
   1. Disconnect audio amp. connectors and suspect rear door speaker connector.
   2. Check continuity between audio amp. connectors and suspect rear door speaker connector.

      Audio amp.		Rear door speaker		Continuity
      Connector	Terminal	Connector	Terminal
      M113	11	D207 (LH)	1	Yes
      	27		2
      	12	D307 (RH)	1
      	28		2

   3. Check continuity between audio amp. connectors and ground.

      Audio amp.		Ground	Continuity
      Connector	Terminal
      M113	11	-	No
      	27
      	12
      	28

   Is the inspection result normal?

   YES

   GO TO 3 .

   NO

   Repair or replace harness or connectors.

3. CHECK REAR DOOR SPEAKER SIGNAL (AUDIO AMP.) 
   1. Connect audio amp. connectors and suspect rear door speaker connector.
   2. Turn ignition switch to ACC.
   3. Push AV control unit POWER switch.
   4. Check signal between audio amp. connectors and ground.

      Audio amp.			Condition	Reference value
      Connector	(+)	(-)
      	Terminal	Terminal
      M113	11	27	Audio signal output	Courtesy of NISSAN NORTH AMERICA, INC.
      	12	28

   Is the inspection result normal?

   YES

   Replace rear door speaker. Refer to Removal and Installation .

   NO

   GO TO 4 .

4. CHECK REAR DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY (AV CONTROL UNIT) 
   1. Turn ignition switch to OFF.
   2. Disconnect audio amp. connector M113 and AV control unit connector M43.
   3. Check continuity between audio amp. connector M113 and AV control unit connector M43.

      Audio amp.		AV control unit		Continuity
      Connector	Terminal	Connector	Terminal
      M113	24	M43	4	Yes
      	8		5
      	23		13
      	7		14

   4. Check continuity between audio amp. connector M113 and ground.

      Audio amp.		Ground	Continuity
      Connector	Terminal
      M113	24	-	No
      	8
      	23
      	7

   Is the inspection result normal?

   YES

   GO TO 5 .

   NO

   Repair or replace harness or connectors.

5. CHECK REAR DOOR SPEAKER SIGNAL (AV CONTROL UNIT) 
   1. Connect audio amp. connector M113 and AV control unit connector M43.
   2. Turn ignition switch to ACC.
   3. Push AV control unit POWER switch.
   4. Check signal between AV control unit connector M43 and ground.

      AV control unit connector M43		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 audio amp. Refer to Removal and Installation .

   NO

   Replace AV control unit. Refer to Removal and Installation .