Nissan Maxima Service and Repair Manual: Microphone signal circuit

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

Nissan Maxima. 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.

Nissan Maxima. CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE

Nissan Maxima. CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE

2.CHECK MICROPHONE POWER SUPPLY

Nissan Maxima. 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.

Nissan Maxima. CHECK MICROPHONE POWER SUPPLY

3.CHECK MICROPHONE SIGNAL

Nissan Maxima. CHECK MICROPHONE SIGNAL

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

Nissan Maxima. CHECK MICROPHONE SIGNAL 

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