BLUETOOTH® CONTROL UNIT: Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK FUSE 

   Check that the following fuses of the Bluetooth® control unit are not blown.

   Power source	Fuse No.
   Battery	31
   Ignition switch ACC or ON	4
   Ignition switch ON or START	12

   Is inspection result OK? 

   YES: GO TO 2.

   NO: Be sure to eliminate cause of malfunction before installing new fuse.

2. CHECK POWER SUPPLY CIRCUIT 

   Check voltage between Bluetooth® control unit harness connector B142 and ground.

   (+)		(-)	Ignition switch position	Value (Approx.)
   Connector	Terminal
   B142	1	Ground	OFF	Battery voltage
   	2		ACC
   	3		ON

   Fig 1: Checking Power Supply Circuit

   Courtesy of NISSAN NORTH AMERICA, INC.

   Is battery voltage present as specified? 

   YES: GO TO 3.

   NO: Check harness between Bluetooth® control unit and fuse.

3. CHECK GROUND CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect Bluetooth® control unit connector.
   3. Check continuity between Bluetooth® control unit harness connector B142 and ground.

      Connector.	Terminal	-	Continuity
      B142	4	Ground	Yes
      	20
      	23

      Fig 2: Checking Ground Circuit Continuity

      Courtesy of NISSAN NORTH AMERICA, INC.

      Are continuity results as specified? 

      YES: Inspection End.

      NO: Repair harness or connector.