Nissan Altima 2007-2012 Service Manual: 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 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 B126 (A) and microphone harness connector R7 (B).

4. Check continuity between Bluetooth control unit harness connector B126 (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 - Sedan".

3.CHECK MICROPHONE SIGNAL

Check signal between Bluetooth control unit harness connector B126 terminals 7 and 8.

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

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

    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 U ...

    Other materials:

    Audio antenna (sedan)
    Location of Antenna 1. In-line connectors M87, M501 2. AV control unit harness 3. AV control unit 4. Satellite antenna 5. AV control unit antenna feeder 6. Satellite radio antenna feeder 7. Window Antenna 8. Antenna amp. 9. Satellite radio tuner Window Antenna Repair ELEMENT CHECK 1. ...

    Headlamp (xenon)
     Description The IPDM E/R (intelligent power distribution module engine room) controls the headlamp low relay based on inputs from the BCM over the CAN communication lines. When the headlamp low relay is energized, power flows through fuses 51 and 52, located in the IPDM E/R. Power then ...

    Exhaust manifold and three way catalyst
    Removal and Installation 1. Exhaust manifold heat shield (RH) 2. Air fuel ratio (A/F) sensor 1 (bank 1) 3. Exhaust manifold (RH) 4. Gaskets 5. Heated oxygen sensor 2 (bank 1) 6. Three way catalyst (manifold) (bank 1) 7. Three way catalyst (manifold) (bank 2) 8. Heated oxygen sensor 2 (ba ...