Nissan Altima (L32) 2007-2012 Service Manual ≻ Audio, visual & navigation system bose audio without navigation ≻ Component diagnosis ≻ Microphone signal circuit (coupe)

Nissan Altima (L32) 2007-2012 Service Manual: Microphone signal circuit (coupe)

Description

Voice signals are transmitted from the microphone to the Bluetooth control unit using the microphone signal circuits.

Diagnosis Procedure

1.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE

1. Turn ignition switch OFF.

2. Disconnect Bluetooth control unit connector and microphone connector.

3. Check continuity between Bluetooth control unit harness connector B55 (A) and microphone harness connector R7 (B).

4. Check continuity between Bluetooth control unit harness connector B55 (A) and ground.

Are the continuity test results as specified? YES >> GO TO 2

NO >> Repair harness or connector.

2.CHECK MICROPHONE POWER SUPPLY

1. Connect Bluetooth control unit connector and microphone connector.

2. Turn ignition switch ON.

3. Check voltage between microphone harness connector R7 terminal 4 and ground.

Is voltage reading approx. 5 volts? YES >> GO TO 3

NO >> Replace Bluetooth control unit. Refer to AV-235, "Removal and Installation - Coupe".

3.CHECK MICROPHONE SIGNAL

Check signal between Bluetooth control unit harness connector B55 terminals 7 and 8.

Are voltage readings as specified? YES >> Replace Bluetooth control unit. Refer to AV-235, "Removal and Installation - Coupe".

NO >> Replace microphone. Refer to AV-233, "Removal and Installation".

Sound signal circuit (sedan)

SATELLITE RADIO TUNER Description Left and right channel audio signals are supplied from the satellite radio tuner to the audio unit through the sound signal circuits. Diagnosis Procedur ...

Microphone signal circuit (sedan)

Description Voice signals are transmitted from the microphone to the Bluetooth control unit using the microphone signal circuits. Diagnosis Procedure 1.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UN ...

Other materials:

Wireless charger (if so equipped)
Indicator Charging pad The wireless charger is located on the front of the center console. Lay the smartphone on the pad of the wireless charger. Charging will start automatically. The smartphone will be charged continuously while the ignition switch is in the ON position. NOTE: The wireless ch ...

NISSAN Intelligent Key battery discharge
If the battery of the NISSAN Intelligent Key is discharged or environmental conditions interfere with the Intelligent Key operation, start the engine according to the following procedure: 1. Place the shift lever in the P (Park) position. 2. Firmly apply the foot brake. 3. Touch the ignition switc ...

General maintenance
During the normal day-to-day operation of the vehicle, general maintenance should be performed regularly as prescribed in this section. If you detect any unusual sounds, vibrations or smells, be sure to check for the cause or have it checked promptly. In addition, it is recommended that you visit a ...