2000 SAAB 9-3 Owners Manual

81 Instruments and controls
The system uses five sensors:
 Outside-air temperature.
 Cabin-air temperature.
 Sun sensor.
 Blended-air temperature (located in the
heater unit).
 Coolant temperature.
The sun sensor is centrally located on the
dashboard panel between the defroster
nozzles. Note that if anything is placed over
the sun sensor the ACC system will not
function properly.
Condensation water When the A/C compressor is on, the incom-
ing air is dehumidified. The resulting con-
densation water is drained away through an
outlet under the car.
It is therefore perfectly normal for water to
be seen dripping from this outlet when the
car is parked. The warmer the ambient air
and the higher the humidity, the more con-
densation will form.
IB763
1 Sun sensor
2 Interior-temperature sensor
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82 Instruments and controlsFunctions The function you have manually selected will be locked in, while
other functions remain automatic.
Temperature maintenance, except in positions HI and LO, is, there-
fore always automatic. The active function is shown in the display.
A manual selection is cancelled by pressing AUTO or by repeated
pressing of the button used to make the manual choice. For further
functions, see ”Programming II”, page 87.
Button Display
When the system is set to AUTO, the
temperature, air distribution, fan
speed and recirculation will be con-
trolled automatically.
The air conditioning is activated auto-
matically if the outside temperature is
above 32°F (0°C). When AUTO is
depressed again, all automatically
selected settings are shown on the
display.
Button Display
Setting the cabin temperature
1 Switch on the ignition.
2 Set the desired cabin tempera-
ture using the two buttons.
3 The temperature you have now
chosen will be stored, remaining
in the memory even when the
ignition is switched off, unless
ACC has been programmed with
a different "ON" setting. See pro-
gramming, page 86.
IB764
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83 Instruments and controls
Button Display
One touch:
When Defroster is manually selected
you will get demisting of all windows
(the air flow to the rear side windows
will be shut off) by high fan speed. Air
will be routed to the defroster noz-
zles. Normal temperature control,
recirculation and ECON will be
switched off but the electric heating
of the rear window and outside mir-
rors will be switched on. Current set-
tings will be shown on the display and
AUTO will go out.
The demister function remains oper-
ative until another selection is made,
but the heating of the rear window
and the outside mirrors will be
switched off after a certain time,
depending on the outside tempera-
ture.
Two touches:
Two touches on the defroster button
routes the air to the windshield with-
out any increase in fan speed and
without switching on the rear-window
heating.
To revert to the previous setting,
press the AUTO button.
Button Display
Panel (and center rear vent)
Floor, front and rear (and rear side
windows)
Defroster - floor (front and rear) Press
simulta-
neously
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84 Instruments and controlsButton Display
Panel - floor (front and rear) and
center rear vent
Electrically heated rear window/elec-
trically heated door mirrors are con-
trolled automatically, though they
can also be programmed for manual
control; see
”Programming II”, page 87.
The temperature, air distribution and
fan speed will still be controlled auto-
matically.
Press or to
increase/decrease the fan speed
(the fan setting is shown on the dis-
play).
To revert to automatic fan control,
press AUTO. Other manual selec-
tions will revert to automatic control
at the same time. Press
simulta-
neously
Button Display
Recirculation is controlled automati-
cally, but there is also manual
ON/OFF control.
When this function is activated the
A/C compressor will be shut off.
Reconnection can be made with one
press on AUTO or pressing ECON.
The function can be programmed for
automatic A/C disconnection when
the outside temperature falls below
57°F (+14°C), see "Programming II",
page 87.
The temperature, air distribution and
fan speed will still be controlled auto-
matically.
After you have depressed OFF there
will be no control.
You can re-activate by pressing
AUTO or by again pressing OFF,
which gives the latest setting.
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85 Instruments and controls
Starting in cold weather: The automatic
climate control system selects the defroster
position, max. heating and low fan speed to
begin with.
As the engine temperature rises, the fan
speed is increased and air is routed towards
the floor.
As the temperature inside the car nears the
selected value, both the fan speed and the
heat will be decreased to a level determined
by the system.
Starting in hot weather: The automatic cli-
mate control system selects air to the panel
vents and high fan speed. Recirculation is
switched on about 30 seconds after starting
if the selected cabin temperature is mark-
edly lower than the actual temperature.
Unless the ECON button has been
depressed, the A/C compressor is always
switched on at outside temperatures above
32°F (0°C) in order to cool and dehumidify
the incoming air, unless the ECON button
has been depressed.
As the temperature inside the car nears the
selected value, the fan speed will be
decreased to a value determined by the
system.
Action to be taken in special types of
weather Normally, misting and icing problems on the
windows do not occur other than in extreme
situations, e.g. when you are driving in
heavy rain or severe cold in combination
with high air humidity or when those travel-
ling in the car are sweaty and wet. If you
have trouble with misting or icing in such
cases we suggest the following counter-
measures:
1 Select and temperature 70°F
(21°C).
2 Select . If this is not enough ...
3 Increase the fan speed. If this is not
enough ...
4 Select a higher temperature.
Air to the rear side windows is supplied by
the floor ducts. To demist these windows
you should therefore select a defroster/floor
combination by pressing both buttons at the
same time.
IB793
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86 Instruments and controlsCalibrationIf the battery has been disconnected or has run flat, the system will
recalibrate automatically.
Manual calibration:
1 Start the engine.
2 Press + at the same time. The ACC display flashes
once to indicate that calibration and self-testing have started.
During calibration the display indicates the figure 0 or the fault codes
(01-23) that have been found.
Calibration and self-testing takes about 30 seconds.
Programming IThe manual selections you have made can be saved so that the
ACC system always starts up on these selections every time the
ignition is switched on. But notice that the ignition must have been
off for at least 10 minutes before you try out the saved setting.
1 Select the desired settings.
2 Press + at the same time.
(The ACC background lighting flashes to confirm that the informa-
tion has been stored.)
Example:
If you want the ACC system to distribute the air to the dash vents
from the start, proceed as follows:
1 Start the engine.
2 Press the button .
3 Press and at the same time.
4 Shut off the key.
5 The system will memorize this new program 10 minutes after the
key is shut off.Cancelling program I A saved setting is deleted only by pressing + at the
same time.
(The ACC display flashes to confirm that deletion has been
effected.)
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87 Instruments and controls
Programming II It is also possible to customize the ACC system to adapt to driving
and weather conditions. Programming and cancellation of programming is carried out by
holding the appropriate button down until the corresponding symbol
has flashed 4 times, an audible signal has sounded and the follow-
ing text for the desired function has appeared in the SID.
Make sure the ignition is ON.
Example:
If you want to control the switching on and off of the heating for the
rear window and the door mirrors manually, hold the button
depressed until the symbol has flashed 4 times, an audible signal
has sounded and the following text has appeared in the SID.

SID shows:
ACC: MANUAL
RDEFR CTRL
Once a function has been recorded under ”Programming II”, it will
remain in the system until you cancel the program.
AUTO will still show on the display after a function has been saved
in ”Programming II”.
Additional programming features, see page 231. Function Operation in AUTO mode
after Programming II Standard operation in
AUTO mode
The A/C compressor is not
switched on until the out-
side temperature goes
above +55°F (+13°C).
– This function can be used
to save fuel, since the A/C
compressor will not be in
action for so long a time.
In wet weather, however,
the A/C compressor should
be on at below 57
°F (14°C)
as well, since this reduces
the risk of misting on the
windows.
A/C compressor cuts in
when outside tempera-
ture is above 32°F
(0°C).
Rear-window heating can
only be switched on manu-
ally. The heating will come on
about five seconds after
the engine has started if
the outside temperature
is below +41°F (+5°C).–The activation time
depends on the outside
temperature.
Function Text displayed on SID
during programming Text displayed on SID
when cancelling
program
ACC: LO TEMP
A/C CTRL ACC: NORMAL
A/C CTRL
ACC: MANUAL
RDEFR CTRL ACC: AUTO
RDEFR CTRL
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88 Instruments and controlsUseful tips: If the ACC system is not functioning
satisfactorily the following should be tried
before you take the car to an authorized
Saab dealer.
 If the indication AUTO does not light up
after starting (the ignition must have been
switched off for at least 10 minutes): See
Cancelling programming of ACC.
 If you think that the ACC system is not
functioning satisfactorily you should:
1. Check that the cigarette lighter plug is
in its socket (since if the socket is empty
heated air can flow out and affect the
cabin sensor).
2. Recalibrate: See the section headed
Calibration.
 If the battery has been disconnected or
has died, the ACC system should be reca-
librated: See Calibration.
Programmed settings are not deleted if the
battery has been disconnected. Extinguishing the lighting in ACC See section Night Panel, page 63.
ACC - 9-3 Convertible When the soft top is folded down the ACC
system goes over to manual temperature
setting.
Between HI and LO there are eleven (0-10)
fixed temperature steps.
The system adjusts itself as follows
 AUTO is turned off.
 Heating, air distribution and fan speed are
not affected.
 Recirculation and electric rear window
are turned off.
 A/C assumes the same setting (ON/OFF)
as it had when the soft top was last folded
down.
All manual selections are possible with the
exception of electric rear window.
Saab recommends leaving the ACC setting
on ECON when the soft top is folded down
to improve fuel economy and unnecessary
running of the A/C compressor.
When the soft top is raised the system
reverts to the AUTO mode and the previous
set temperature.
IB795
ACC display with soft top folded down
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