BLUETOOTH CONTROL UNIT: Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSE

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

FUSE SPECIFICATIONS

Power source	Fuse No.
Battery	24
Ignition switch ACC or ON	17
Ignition switch ON or START	3

Are the fuses OK?

YES: GO TO 2.

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

CHECK POWER SUPPLY CIRCUIT

Check voltage between Bluetooth control unit harness connector and ground.

CONNECTOR TERMINAL VALUE CHART

(+)		(-)	Ignition switch position	Value (Approx.)
Connector	Terminal	(-)	Ignition switch position	Value (Approx.)
B126	1	Ground	OFF	Battery voltage
	2		ACC
	3		ON

Fig 1: Checking Voltage Between Bluetooth Control Unit Harness Connector And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Are the voltage results as specified?

YES: GO TO 3.

NO: Check harness between Bluetooth control unit and fuse.

CHECK GROUND CIRCUIT

Turn ignition switch OFF.
Disconnect Bluetooth control unit connector B126.
Check continuity between Bluetooth control unit harness connector and ground.

CONNECTOR TERMINAL CONTINUITY CHART

(+)		(-)	Continuity
Connector	Terminal	(-)	Continuity
B126	4	Ground	Yes
B126	23	Ground	Yes

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

Courtesy of NISSAN MOTOR CO., U.S.A.

Does continuity exist?

YES: Inspection End.

NO: Repair harness or connector.