Nissan Altima (L32) 2007-2012 Service Manual: Door speaker (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 door speakers using the audio signal circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector B121 and suspect speaker connector.
2. Check continuity between BOSE speaker amp. harness connector B121 (A) and suspect speaker harness connector (B).
3. Check continuity between BOSE speaker amp. harness connector B121 (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.DOOR SPEAKER SIGNAL CHECK
1. Connect BOSE speaker amp. connector B121 and suspect speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between BOSE speaker amp. harness connector B121 terminals with CONSULT-III or oscilloscope.
Is audio signal voltage as specified? YES >> Replace suspect speaker. Refer to AV-442, "Removal and Installation".
NO >> GO TO 3
3.HARNESS CHECK
1. Disconnect AV control unit connector M47 and BOSE speaker amp. connector B121.
2. Check continuity between audio 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.DOOR SPEAKER SIGNAL CHECK
1. Connect AV control unit connector and BOSE speaker amp.
connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between AV control unit harness connector 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 - Coupe".
NO >> Replace AV control unit. Refer to AV-437, "Removal and Installation".
Microphone
Diagnosis Procedure 1.CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE) Check voltage between microphone harness connector and ground. Is proper voltage present? YES >> GO TO 4 NO >> G ...Front 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 front door speakers using the audio signal c ...Other materials:
Connecting Procedure
NOTE:
The connecting procedure must be performed
when the vehicle is stationary. If the
vehicle starts moving during the procedure,
the procedure will be cancelled.
1. Press the [ ] button on the
control
panel.
2. Select the “Settings” key.
3. Select the “Phone & Bluetooth” ...
Clutch disc and clutch cover
Exploded View
1. Flywheel
2. Clutch disc
3. Clutch cover
1. Flywheel
2. Clutch disc *1, *2
3. Clutch cover
A. First step
B. Final Step
Apply lithium-based grease
including molybdenum disulphide
*1. Do not clean in solvent. *2. When installing, be careful that grease
applied to in ...
Magnet clutch
Description
SYSTEM DESCRIPTION
Front air control controls A/C compressor operation by ambient temperature
and signal from ECM.
Low Temperature Protection Control
Front air control will turn the A/C compressor ON or OFF as determined
by a signal detected by ambient sensor.
When ambient te ...