Nissan Altima (L32) 2007-2012 Service Manual: Microphone signal circuit
Description
Power is supplied to the microphone from the AV control unit. The microphone
transmits voice signals to the
AV control unit.
Diagnosis Procedure
1.CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND MICROPHONE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M46 and microphone connector R7.
3. Check continuity between AV control unit harness connector
M46 (A) terminals 45, 46, 47 and microphone harness connector
R7 (B) terminals 1, 2, 4.
4. Check continuity between AV control unit harness connector
M46 (A) terminals 45, 46, 47 and ground.
Is inspection result OK?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK MICROPHONE VCC VOLTAGE
1. Connect AV control unit connector.
2. Turn ignition switch ON.
3. Check voltage between AV control unit harness connector M46
terminals 46 and 47.
Is inspection result OK?
YES >> GO TO 3
NO >> Replace AV control unit. Refer to AV-437, "Removal and
Installation".
3.CHECK MICROPHONE SIGNAL
1. Connect microphone connector.
2. Check signal between AV control unit harness connector M46
terminals 45 and 47.
Is inspection result OK?
YES >> Replace AV control unit. Refer to AV-437, "Removal and Installation".
NO >> Replace microphone. Refer to AV-456, "Removal and Installation".
Description
When one of the steering wheel audio control switches is pushed, the
resistance in the steering switch circuit
changes depending on which button is pushed.
Diagnosis Procedure
1.CH ...
Description
Rear view camera images are transmitted to the rear view camera control unit
using the camera image signal
circuits.
Diagnosis Procedure
1.CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUI ...
Other materials: Changing engine oil and oil filter
For additional information on engine oil
and oil filter change, refer to the instructions
outlined in this section.
Vehicle set-up
1. Park the vehicle on a level surface and
apply the parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn the engine off and wait for 15 mi ...
I-FCW system operation
For vehicles with the 7 inch (18 cm) display
Vehicle ahead detection indicator
AEB with Pedestrian Detection system
warning light
For vehicles with the 5 inch (13 cm) display
The I-FCW system operates at speeds
above approximately 3 mph (5 km/h).
If there is a potential risk of a forward co ...
Automatic operation
Cooling and/or dehumidified
heating (AUTO)
This mode may be used all year round as
the system automatically works to keep a
constant temperature. Air flow distribution,
air intake control, and fan speed are also
controlled automatically.
1. Press the AUTO button on.
2. Turn the temperature control ...