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:

Fuel-filler door
Opener operation The fuel-filler door release is located below the instrument panel. To open the fuel-filler door, pull the release. To lock, close the fuel-filler door securely. Fuel-filler cap WARNING Gasoline is extremely flammable and highly explosive under certain conditions. You could be ...

Cruise control operations
The cruise control allows driving at a speed between 25 - 89 mph (40 - 144 km/h) without keeping your foot on the accelerator pedal. To turn on the cruise control, push the cruise control switch on. The indicator in the instrument panel will illuminate. To set cruising speed, accelerate the veh ...

Steering Assist
WARNING Failure to follow the warnings and instructions for proper use of the Steering Assist could result in serious injury or death. The Steering Assist is not a replacement for proper driving procedures and is not designed to correct careless, inattentive or absent-minded driving. The Steer ...