Nissan Altima 2007-2012 Service Manual: 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.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect BOSE speaker amp. connector B122 and suspect rear subwoofer connector.
2. Check continuity between BOSE speaker amp. harness connector B122 (A) and suspect rear subwoofer harness connector (B).
3. Check continuity between BOSE speaker amp. harness connector B122 (A) 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 SUBWOOFER SIGNAL CHECK
1. Connect BOSE speaker amp. connector B122 and suspect rear subwoofer 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.
Is the audio signal voltage as specified? YES >> Replace suspect rear subwoofer. Refer to AV-445, "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 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 SUBWOOFER 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-216, "Removal and Installation - Coupe".
NO >> Replace AV control unit. Refer to AV-437, "Removal and Installation".
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
cir ...
Subwoofer (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 subwoofers using the audio signal circuits.
Di ...
Other materials:
Electrical units location
Electrical Units Location
ENGINE COMPARTMENT
PASSENGER COMPARTMENT
LUGGAGE COMPARTMENT
HARNESS CONNECTOR
Description
HARNESS CONNECTOR (TAB-LOCKING TYPE)
• The tab-locking type connectors help prevent accidental looseness or
disconnection.
• The tab-locking type connectors a ...
B210b starter control relay
Description
Starter control relay, integrated in IPDM E/R, permits the starter relay
operation when in N or P position and
the steering is locked or unlocked. It is installed in parallel with the starter
relay.
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC B210B is displayed with DTC U10 ...
C1712 - C1715, C1720 - C1723, C1724 -C1727 Transmitter malfunction
Description
One or more transmitters are malfunctioning internally.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DRIVE VEHICLE
1. Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive
the vehicle at any speed for
10 minutes.
2. Check all tire pressu ...