Nissan Altima (L32) 2007-2012 Service Manual: Rear door speaker (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 rear door speakers using the audio signal circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connectors B121, B122 and suspect speaker connector.
2. Check continuity between BOSE speaker amp. harness connectors B121 (A) and B122 (B) and suspect speaker harness connector (C).
3. Check continuity between BOSE speaker amp. harness connectors B121 (A) and B122 (B) and ground.
Are the continuity test results as specified? YES >> GO TO 2
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.REAR DOOR SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connectors B121, B122 and suspect speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connectors (A) B121 and (B) B122 terminals with CONSULT-III or oscilloscope.
Is the audio signal voltage readings as specified? YES >> Replace suspect speaker. Refer to AV-443, "Removal and Installation - Sedan".
NO >> GO TO 3.
3.HARNESS CHECK
1. Disconnect AV control unit connector M47 and BOSE speaker amp. connector B121.
2. Check continuity between AV control unit harness connector M47 (A) and BOSE speaker amp. harness connector B121 (B).
3. Check continuity between AV control unit harness connector M47 (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.REAR DOOR SPEAKER SIGNAL CHECK
1. Connect AV control unit connector M47 and BOSE speaker amp. connector B121.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between AV control unit harness connector M47 terminals with CONSULT-III or oscilloscope.
Are the audio signal voltage readings as specified? YES >> Replace BOSE speaker amp. Refer to AV-438, "Removal and Installation - Sedan".
NO >> Replace AV control unit. Refer to AV-437, "Removal and Installation".
Rear 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 rear tweeters using the audio signal
circuits ...
Subwoofer (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 subwoofers using the audio signal circuits.
D ...
Other materials:
Parking brake control
PEDAL TYPE
Exploded View
1. Control device assembly
2. Parking brake switch
3. Pedal pad
4. Adjusting nut
5. Lock plate
6. Front cable
7. Rear cable RH
8. Rear cable LH
9. Equalizer
10. Spring
11. Pin
Removal and Installation
REMOVAL
1. Remove rear wheel and tires. Refer ...
AV Branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the AV control unit for damage, bend
and loose connection (unit
side and connector side).
I ...
Engine speed signal circuit
Description
• ECM sends engine speed signal to power steering control unit.
Diagnosis Procedure
1.PERFORM ECM SELF-DIAGNOSIS
Perform ECM self-diagnosis.
Is any error system detected?
YES >> Check the error system.
NO >> GO TO 2.
2.CHECK HARNESS BETWEEN ECM AND POWER STEE ...
