BLUETOOTH CONTROL UNIT: Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - WITHOUT NAVIGATION SYSTEM ".

1. CHECK FUSE

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

   Power source	Fuse No.
   Battery	29
   Ignition switch ACC or ON	4
   Ignition switch ON or START	12

   Are the fuses 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 and ground.

   (+)		(-)	OFF	ACC	ON
   Connector	Terminal
   B124	1	Ground	Battery voltage	Battery voltage	Battery voltage
   	2		0V	Battery voltage	Battery voltage
   	3		0V	0V	Battery voltage

   Fig 1: Checking Voltage Between Bluetooth Control Unit Connector Terminals 1, 2, 3 And Ground

   Courtesy of NISSAN NORTH AMERICA, INC.

   Are the voltage results 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 B124.
   3. Check continuity between Bluetooth control unit harness connector and ground.

      Connector	Terminal	-	Continuity
      B124	4	Ground	Yes
      	21
      	22
      	24

   Fig 2: Checking Continuity Between Bluetooth Control Unit Connector Terminals And Ground

   Courtesy of NISSAN NORTH AMERICA, INC.

   Does continuity exist? 

   YES: Inspection End.

   NO: Repair harness or connector.