Nissan Altima 2007-2012 Service Manual: Tweeter (sedan)
Description
The audio unit sends audio signals to the tweeters using the door speaker circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect audio unit connector M43 (A) and suspect tweeter connector (B).
2. Check continuity between audio unit harness connector M43 (A) and suspect tweeter harness connector (B).
3. Check continuity between audio unit harness connector M43 (A) and ground.
Are the continuity results as specified? YES >> GO TO 2
NO >> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.TWEETER SIGNAL CHECK
1. Connect audio unit connector and tweeter 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 tweeter. Refer to AV-73, "Removal and Installation".
NO >> Replace audio unit. Refer to AV-72, "Removal and Installation".
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 ...
Rear speaker
Description
The audio unit sends audio signals to the rear speakers using the rear
speaker circuits.
Diagnosis Procedure
1.HARNESS CHECK
1. Disconnect audio unit connector M43 (A) and suspect s ...
Other materials:
Diagnosis and repair workflow
Work Flow
DETAILED FLOW
1.LISTEN TO CUSTOMER COMPLAINT
Listen to customer complaint. Get detailed information about the conditions
and environment when the symptom
occurs.
>> GO TO 2
2.VERIFY THE SYMPTOM WITH OPERATIONAL CHECK
Verify the symptom with operational check. Refer to HAC ...
P0643 sensor power supply
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn
ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following proced ...
The oil pressure warning lamp does not turn on
Description
The oil pressure warning lamp stays off when the ignition switch is turned
ON.
Diagnosis Procedure
1.CHECK OIL PRESSURE WARNING LAMP
Perform IPDM E/R auto active test. Refer to PCS-14, "Diagnosis Description".
Is oil pressure warning lamp illuminated?
YES >> G ...