Nissan Sentra Owners Manual: Manual operation
Fan speed control
Press the fan control buttons 
to
manually
control the fan speed.
Press the AUTO button to return to automatic control of the fan speed.
Air recirculation
Press the 
air recirculation
button to recirculate
interior air inside the vehicle. The 
indicator light on the button will come on.
The air recirculation cannot be activated when
the air conditioner is in the 
front
defrosting
mode or the 
front defrosting and
foot outlet
mode.
Fresh air intake
Press the 
fresh air intake
button to draw
outside air into the passenger compartment.
The 
indicator light on the button
will come
on.
Automatic intake air control
In the AUTO mode, the intake air will be controlled
automatically. To manually control the intake
air, press the 
air recirculation
button.
To return to the automatic control mode, press
and hold 
the air recirculation
button or
press and hold 
the fresh air
intake button
for about 2 seconds. The indicator lights (both air
recirculation and fresh air intake buttons) will
flash twice, and then the intake air will be controlled
automatically.
Air flow control
Pressing the MODE button manually controls air flow and selects the air outlet:
— Air flows from center and side
vents.
— Air flows from center and side
vents and foot outlets.
— Air flows mainly from foot
outlets.
— Air flows from defroster and
foot
outlets.
To turn system off
Press the OFF button.
Rear window and outside mirror (if so equipped) defroster switch
For more information about the rear window and outside mirror (if so equipped) defroster switch, see “Rear window and outside mirror (if so equipped) defroster switch” in the “Instruments and controls” section of this manual.
Automatic operation
Heating (A/C OFF)
The air conditioner does not activate. When you
need to heat only, use this mode.
Press the A/C button. (A/C OFF will be
displayed and A/C indicator will turn off.)
Use the ...
Operating tips
When the engine coolant temperature and
outside air temperature are low, the air flow
from the foot outlets may not operate for a
maximum of 150 seconds. However, this is
not a malfunction. ...
Other materials:
Diagnosis description : system readiness
test (SRT) code
System Readiness Test (SRT) code is specified in Service $01 of SAE J1979/ISO
15031-5.
As part of an enhanced emissions test for Inspection & Maintenance (I/M),
certain states require the status of
SRT be used to indicate whether the ECM has completed self-diagnosis of major
emission s ...
Seat belt buckle switch signal circuit
Description
Transmits a seat belt buckle switch lh (driver seat) 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.
YES >> Inspection End.
NO >> Refe ...
Power supply and ground circuit
WITH INTELLIGENT KEY SYSTEM
WITH INTELLIGENT KEY SYSTEM : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-51, "Wiring Diagram".
1.Check fuses and fusible link
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
Yes >> r ...
