Nissan Maxima Service and Repair Manual: Power supply and ground circuit

AUDIO UNIT

AUDIO UNIT : Diagnosis Procedure

1.CHECK FUSES

Nissan Maxima. .CHECK FUSES

2.POWER SUPPLY CIRCUIT CHECK

Nissan Maxima. .POWER SUPPLY CIRCUIT CHECK

  1. Disconnect audio unit connector M132.
  2. Check voltage between the audio unit connector M132 and ground.

Nissan Maxima. .POWER SUPPLY CIRCUIT CHECK

3.GROUND CIRCUIT CHECK

Inspect audio unit case ground.

DISPLAY UNIT

DISPLAY UNIT : Diagnosis Procedure

1.CHECK FUSES

Check that the following fuses are not blown.

Nissan Maxima. CHECK FUSES

2.POWER SUPPLY CIRCUIT CHECK

Nissan Maxima. .POWER SUPPLY CIRCUIT CHECK

  1. Turn ignition switch OFF.
  2. Disconnect display unit connector.
  3. Check voltage between the display unit and ground.

Nissan Maxima. .POWER SUPPLY CIRCUIT CHECK

3.GROUND CIRCUIT CHECK

Nissan Maxima. GROUND CIRCUIT CHECK

  1. Turn ignition switch OFF.
  2. Check continuity between display unit harness connector and ground.

Nissan Maxima. GROUND CIRCUIT CHECK

BOSE SPEAKER AMP

BOSE SPEAKER AMP : Diagnosis Procedure

1.CHECK FUSE

Check for blown fuses.

Nissan Maxima. CHECK FUSE

2.CHECK POWER SUPPLY CIRCUIT

Nissan Maxima. CHECK POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect BOSE speaker amp connector.
  3. Check voltage between BOSE speaker amp harness connector and ground.

Nissan Maxima. CHECK POWER SUPPLY CIRCUIT

3.CHECK GROUND CIRCUIT

Nissan Maxima. CHECK GROUND CIRCUIT

Check continuity between BOSE speaker amp harness connector and ground.

Nissan Maxima. CHECK GROUND CIRCUIT

BLUETOOTH CONTROL UNIT

BLUETOOTH CONTROL UNIT : Diagnosis Procedure

1.CHECK FUSE

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

Nissan Maxima. .CHECK FUSE

2.CHECK POWER SUPPLY CIRCUIT

Nissan Maxima. CHECK POWER SUPPLY CIRCUIT

Check voltage between Bluetooth control unit harness connector and ground.

Nissan Maxima. CHECK POWER SUPPLY CIRCUIT

3.CHECK GROUND CIRCUIT

Nissan Maxima. CHECK GROUND CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect Bluetooth control unit connector B131.
  3. Check continuity between Bluetooth control unit harness connector and groun

Nissan Maxima. CHECK GROUND CIRCUIT

MICROPHONE

MICROPHONE : Diagnosis Procedure

1.CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)

Nissan Maxima. CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)

Check voltage between microphone harness connector and ground

Nissan Maxima. CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)

2.CHECK POWER SUPPLY CIRCUIT (CONTINUITY)

Nissan Maxima. CHECK POWER SUPPLY CIRCUIT (CONTINUITY)

  1. Turn ignition switch OFF.
  2. Disconnect Bluetooth control unit and microphone connectors.
  3. Check continuity between microphone harness connector R7 (A) terminal 4 and Bluetooth control unit harness connector B131 (B) terminal 29.
  4. Check continuity between microphone harness connector R7 (A) terminal 4 and ground.

Nissan Maxima. CHECK POWER SUPPLY CIRCUIT (CONTINUITY)

Nissan Maxima. CHECK POWER SUPPLY CIRCUIT (CONTINUITY)

3.CHECK GROUND CIRCUIT

Nissan Maxima. CHECK GROUND CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect Bluetooth control unit and microphone connectors.
  3. Check continuity between Bluetooth control unit harness connector B131 (A) terminal 8 and microphone harness connector R7 (B) terminal 2.

Nissan Maxima. CHECK GROUND CIRCUIT

    DTC/circuit diagnosis

    Front door speaker