Nissan Altima (L32) 2007-2012 Service Manual: 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 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.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".
Satellite radio tuner
Diagnosis Procedure
1.CHECK FUSES
Check that the following fuses are not blown.
Are the fuses OK?
YES >> GO TO 2
NO >> If fuse is blown, be sure to eliminate cause of malfunction be ...
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 su ...
Other materials:
P0550 PSP Sensor
Description
Power steering pressure (PSP) sensor is installed to the power steering
high-pressure tube and detects a
power steering load.
This sensor is a potentiometer which transforms the power steering load into
output voltage, and emits the
voltage signal to the ECM. The ECM controls ...
Door switch
Description
Detects door open/close condition and transmits the signal to BCM.
Component Function Check
1. CHECK DOOR SWITCH INPUT SIGNAL
Check (“DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with
CONSULT-III. Refer to BCS-
34, "RETAINED PWR : CONSULT-III Function (BC ...
P0127 IAT sensor
Description
The intake air temperature sensor is built-into the mass air flow sensor
(1). The sensor detects intake air temperature and transmits a
signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to
the change in temperature. Electrical resistance of the ...
