Nissan Altima (L32) 2007-2012 Service Manual: AV control unit
Diagnosis Procedure
1.CHECK FUSE
Check that the following fuses of the AV control unit are not blown.
Are the fuses OK? YES >> GO TO 2
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between AV control unit harness connector and ground.
Are the voltage tests as specified? YES >> GO TO 3
NO >> Check harness between AV control unit and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connectors.
3. Check continuity between AV control unit harness connector M47 terminal 19 and ground.
Does continuity exist? YES >> Inspection End.
NO >> Repair harness or connector.
Rear view camera control unit
Diagnosis Procedure
1.CHECK FUSE
Check that the following fuses of the rear view camera control unit are not
blown.
Are the fuses OK?
YES >> GO TO 2
NO >> Be sure to eliminate cau ...
Other materials:
Squeak and rattle trouble diagnoses
Work Flow
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist
when the noise occurs.Use the Diagnostic
Worksheet during the interview to document the facts and conditions when the
noise occurs and any
customer's comments; refer to RF-86, "Diag ...
Seat belt buckle switch signal circuit
Description
Transmits a seat belt buckle switch signal to the combination meter.
Component Function Check
1. CHECK COMBINATION METER INPUT SIGNAL
Select “DATA MONITOR” for “METER/M&A” and check the “BUCKLE SW” monitor
value.
>> Inspection End.
Diagnosis Procedure
1. ...
P1720 VSS
Description
ECM receives two vehicle speed signals via the CAN communication line. One is
sent from “ABS actuator and
electric unit (control unit)” via the combination meter, and the other is from
TCM (Transmission control module).
ECM uses these signals for engine control.
DTC Logic
...
