Nissan Altima (L32) 2007-2012 Service Manual ≻ Audio, visual & navigation system base audio ≻ Component diagnosis ≻ Front door speaker (sedan)

Nissan Altima (L32) 2007-2012 Service Manual: Front door speaker (sedan)

Description

The audio unit sends audio signals to the front door speakers using the door speaker circuits.

Diagnosis Procedure

1.HARNESS CHECK

1. Disconnect audio unit connector M43 (A) and suspect speaker connector (B).

2. Check continuity between audio unit harness connector M43 (A) terminal and suspect speaker harness connector (B) terminal.

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

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

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

• Repair harness or connector.

2.FRONT DOOR SPEAKER SIGNAL CHECK

1. Connect audio unit connector and front speaker connector.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

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

Is the audio signal voltage as specified? YES >> Replace speaker. Refer to AV-74, "Removal and Installation".

NO >> Replace audio unit. Refer to AV-72, "Removal and Installation".

Door speaker (coupe)

Description The audio unit sends audio signals to the door speakers using the door speaker circuits. Diagnosis Procedure 1.HARNESS CHECK 1. Disconnect audio unit connector M43 (A) and suspect s ...

Front tweeter (coupe)

Description The audio unit sends audio signals to the front tweeters using the door speaker circuits. Diagnosis Procedure 1.HARNESS CHECK 1. Disconnect audio unit connector M43 (A) and suspect ...

Other materials:

Starting the engine
1. Apply the parking brake. 2. Move the shift lever to P (Park) or N (Neutral). P (Park) is recommended. The starter is designed not to operate if the shift lever is in any of the driving positions. 3. Push the ignition switch to the ON position. Depress the brake pedal and push the ignition swi ...

Power steering
WARNING If the engine is not running or is turned off while driving, the power assist for the steering will not work. Steering will be harder to operate. When the power steering warning light illuminates with the engine running, there will be no power assist for the steering. You will still ...

Parking brake
WARNING Be sure the parking brake is fully released before driving. Failure to do so can cause brake failure and lead to an accident. Do not release the parking brake from outside the vehicle. Do not use the shift lever in place of the parking brake. When parking, be sure the parking brake ...