Nissan Altima (L32) 2007-2012 Service Manual ≻ Audio, visual & navigation system bose audio without navigation ≻ Component diagnosis ≻ Tweeter (sedan)

Nissan Altima (L32) 2007-2012 Service Manual: Tweeter (sedan)

Description

The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the front tweeters using the audio signal circuits.

Diagnosis Procedure

1.HARNESS CHECK

1. Disconnect BOSE speaker amp. connector B122 and suspect tweeter connector.

2. Check continuity between BOSE speaker amp. harness connector B122 (A) and suspect tweeter harness connector (B).

3. Check continuity between BOSE speaker amp. harness connector B122 (A) and ground.

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

NO >> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

2.TWEETER SIGNAL CHECK

1. Connect BOSE speaker amp. connector B122 and suspect tweeter connector.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between BOSE speaker amp. harness connector B122 terminals with CONSULT-III or oscilloscope.

Are the audio signal voltage readings as specified? YES >> Replace suspect tweeter. Refer to AV-217, "Removal and Installation".

NO >> GO TO 3

3.HARNESS CHECK

1. Disconnect audio unit connector M43 and BOSE speaker amp.

connector B121.

2. Check continuity between audio unit harness connector M43 (A) and BOSE speaker amp. harness connector B121 (B).

3. Check continuity between audio unit harness connector M43 (A) and ground.

Are continuity test results as specified? YES >> GO TO 4

NO >> • Check connector housings for disconnected or loose terminals.

• Repair harness or connector.

4.TWEETER SIGNAL CHECK

1. Connect audio unit connector and BOSE speaker amp. connector.

2. Turn ignition switch ACC.

3. Push “POWER” switch.

4. Check the signal between audio unit harness connector M43 terminals with CONSULT-III or oscilloscope.

Are the audio signal voltage readings as specified? YES >> Replace BOSE speaker amp. Refer to AV-216, "Removal and Installation - Coupe".

NO >> Replace audio unit. Refer to AV-215, "Removal and Installation".

Front tweeter (coupe)

Description The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the front tweeters using the audio signal circui ...

Center speaker

Description The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the center speaker using the audio signal circui ...

Other materials:

ProPILOT Assist (if so equipped)
WARNING Failure to follow the warnings and instructions for proper use of the ProPILOT Assist system could result in serious injury or death. ProPILOT Assist is not a self-driving system. Within the limits of its capabilities, as described in this manual, it helps the driver with certain drivin ...

Folding rear seat
Interior trunk access The trunk can be accessed from the driver side and passenger side of the rear seat for loading and unloading, as shown. 1. Move the front passenger seat to the most forward position. 2. Open the access cover on the rear parcel shelf. 3. Insert a key or another suitable tool ...

Jump starting
To start your engine with a booster battery, the instructions and precautions below must be followed. WARNING If done incorrectly, jump starting can lead to a battery explosion, resulting in severe injury or death. It could also damage your vehicle. Explosive hydrogen gas is always present in ...