Nissan Maxima Service and Repair Manual: Hands-free phone system

System Diagram

Nissan Maxima. System Diagram

System Description

Refer to the owner's manual for Bluetooth telephone system operating instructions. NOTE: Cellular telephones must have their wireless connection set up (paired) before using the Bluetooth telephone system.

Bluetooth telephone system allows users who have a Bluetooth cellular telephone to make a wireless connection between their cellular telephone and the Bluetooth control unit. Hands-free cellular telephone calls can be sent and received. Some Bluetooth cellular telephones may not be recognized by the Bluetooth control unit. When a cellular telephone or the Bluetooth control unit is replaced, the telephone must be paired with the Bluetooth control unit. Different cellular telephones may have different pairing procedures. Refer to the cellular telephone operating manual.

BLUETOOTH CONTROL UNIT

When the ignition switch is turned to ACC or ON, the Bluetooth control unit will power up. During power up, the Bluetooth control unit is initialized and performs various self checks. Initialization may take up to 20 seconds.

If a phone is present in the vehicle and paired with the Bluetooth control unit, Nissan Voice Recognition will then become active. Bluetooth telephone functions can be turned off using the Nissan Voice Recognition system.

STEERING WHEEL AUDIO CONTROL SWITCHES

When buttons on the steering wheel audio control switch are pushed, the resistance in steering wheel audio control switch circuit changes depending on which button is pushed. The Bluetooth control unit uses this signal to perform various functions while navigating through the voice recognition system.

The following functions can be performed using the steering wheel audio control switch:

  • Initiate self-diagnosis of the Bluetooth telephone system
  • Start a voice recognition session
  • Answer and end telephone calls
  • Adjust the volume of calls

MICROPHONE

The microphone is located in the roof console assembly. The microphone sends a signal to the Bluetooth control unit. The microphone can be actively tested during self-diagnosis.

AUDIO UNIT

The audio unit receives signals from the Bluetooth control unit and sends audio signals to the speakers.

Component Parts Location

Nissan Maxima. omponent Parts Location

  1. Tweeter LH M143
  2. Display unit M109
  3. Tweeter RH M144
  4. Audio unit M133, M147
  5. Steering wheel audio control switches
  6. Front door speaker LH D3 RH D103
  7. Rear door speaker LH D209 RH D309
  8. Subwoofers (view of underside of parcel shelf) LH B16 RH B17
  9. Bluetooth control unit B125, B126, B130
  10. Subwoofer amp. B21
  11. Microphone R7

Component Description

Part name Description
Audio unit
  • Receives telephone voice signal from Bluetooth control unit.
  • Sends telephone voice signals to the s
Front door speaker Receives telephone voice signals from the audio unit.
Tweeter
Steering wheel audio control switches
  • Start a voice recognition session.
  • Answer and end telephone calls.
  • Adjust the volume level
Microphone Sends voice signals to Bluetooth control unit.

Bluetooth control unit - Controls hands-free phone functions.

- Receives display signals from audio unit.

Bluetooth control unit
  • Controls hands-free phone functions.
  • Receives display signals from audio unit.
  • Outputs display signals to the display unit.
Display unit
  • Receives display signals from Bluetooth control unit.
  • Displays audio system information
Bluetooth antenna Sends telephone voice signal to Bluetooth control unit.
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