sensor SAAB 9-5 2001 User Guide

126 Interior equipment and trunkCars equipped with a programmable
driver’s seat also have a facility for angling
the passenger’s mirror down on reversing,
e.g. for a better view of the curb.
After selecting reverse, press the tiny button
adjacent to the door-mirror switch to tilt the
mirror. The mirror will be reset automatically
when reverse gear is deselected.
Rear-view mirror with auto dimming
functionThe interior rear-view mirror has two sen-
sors, one forward-facing and one rear-fac-
ing.
The system is activated when the for-
ward-facing sensor detects that it is dark
outside and the rear-facing sensor detects,
for example, if the car following has not
dimmed its headlights. The rear-view mirror
is then darkened to prevent the strong light
source from dazzling the driver. This dark-
ening is stepless.
The mirror returns to its normal state when
the strong light source diminishes.
The auto dimming function can be turned
OFF with the switch on the lower edge of the
rear-view mirror.
The system is turned off when reverse gear
is engaged or selected.
Towing a trailer can cause the system to
malfunction, as the rear-facing sensor may
sense light from the trailer.
IB568
Button for angling passenger’s mirror
down on reversing
IB1284
1
23
1 Forward-facing sensor
2 ON/OFF switch, auto dimming function
3 Rear-facing sensor
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152 Starting and driving
AON 93. One of the advantages of the
system is that it enables the engine to
be run safely on lower-grade fuel,
although not lower than AON 87.
 The maximum boost pressure is
adjusted automatically to the knocking
or pinging tendency of the engine.
Occasional, short-lived knocking when
the engine is under a heavy load is per-
fectly normal; the extent will depend on
the grade of fuel in the tank.
 Isolated instances of knocking are
more likely to occur with low-octane
fuel. This controlled form of knocking,
followed by a reduction in the boost
pressure, is a sign that the wastegate is
functioning and is perfectly safe for the
engine.
Important considerations with cata-
lytic convertersThe catalytic converter is an emission-con-
trol device incorporated in the car’s exhaust
system. It consists of a metal canister with a
honeycomb insert, the cells of which have
walls coated in a catalytic layer (mixture of
precious metals).
To ensure that the catalytic converter con-
tinues to function properly, and also to avoid
damage to the converter and its associated
components, the following points must be
observed:
 Have the car serviced regularly in accor-
dance with the service program. The fuel
and ignition systems are particularly
important in this context.
 Always be alert to any misfiring of the
engine (not running on all cylinders) and
any loss of power or performance. At the
first sign of a malfunction, reduce speed
and take the car to an authorized Saab
dealer as soon as possible.
 If the engine fails to start (in very cold
weather or if the battery is flat), the car can
be jump started (manual gearbox only) or
started using jump leads to a donor bat-
NOTEIf constant knocking occurs every time a
load is put on the engine, this indicates a
malfunction in the system.
Have the car checked without delay by an
authorized Saab dealer.
WARNING
If the engine is being run with the car on a
rolling road or dynamometer, to ensure
adequate cooling, air must be blown into
the engine compartment and under the
car at a rate equivalent to the ram-air
effect that would be obtained at the corre-
sponding road speed.
NOTEUse only unleaded gasoline. Leaded gas-
oline is detrimental to the catalyst and
oxygen sensor and will seriously impair
the function of the catalytic converter.
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153 Starting and driving
tery. However, as soon as you have
started the engine, it is important that it
runs on all cylinders. If it is misfiring, allow
i t t o i d l e f o r u p t o f i v e m i n u t e s t o g i v e i t t i m e
to settle and run smoothly. If, after this
time, the engine still fails to run properly,
turn off the engine and get in touch with an
authorized Saab dealer for advice.  Never park the car on dry grass or other
combustible material. The catalytic con-
verter gets very hot and could therefore
start a fire.
 Never drive off if the engine is misfiring.
 If you jump start the car when the engine
is already up to normal temperature, the
engine must start to run on all cylinders.
Stop jump-starting if the engine fails to
start immediately.
Failure to follow these directions could
result in the catalytic converter and associ-
ated components being damaged, and
could represent a breach of the warranty
conditions.
3.0t V6: When starting the engine from cold
an electrical pump is activated. This pump
pumps air into the exhaust system so that
the catalytic converter will reach its normal
operating temperature more rapidly. The
pump is active for 30-60 seconds.
Fuel filler flapThe fuel filler flap is opened by means of a
button on the driver’s door. The flap is
spring-loaded, so it opens slightly automat-
ically when released.
NOTEIf the car runs out of fuel, it is possible for
air to get into the fuel system. If this
happens, the catalytic converter may
overheat and be damaged.
IB1289
2
2
1
3
3
Oxygen-sensor-controlled
injection system 1 Engine control module
2 Oxygen sensor (lambda probe)
3 Catalytic converters
B466
Button for releasing filler flap
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167 Starting and driving
BrakingTo avoid the brakes becoming overheated,
(e.g. when negotiating long descents with a
drop of several hundred feet), select a low
gear to use the braking effect of the engine.
If the car has automatic transmission, move
the selector lever to position 1 or 2.
When driving fast, you can help to prolong
the life of the brakes by thinking ahead and
braking harder for short periods, rather than
braking more moderately over long
stretches. Brake pad wear indicatorsThe outboard brake pads on the front
wheels incorporate pad-wear indicators.
When the lining is down to 3 mm, the pad
will produce a screeching, squealing or
scraping noise when the brakes are applied.
New pads should be fitted without delay.
Brake pads should only be replaced by
an authorized Saab dealer.
To ensure optimum brake performance,
it is recommended that you use only
Saab original brake pads.

ABS brakesABS (antilock braking system) modulates
the brake pressure to the respective
wheels. Wheel sensors detect if a wheel is
about to lock, and the control module
reduces the pressure to that wheel and then
increases it once more until the tendency is
detected again.
The brake system is equipped with an Elec-
tronic Brake-force Distribution device
(EBD), which distributes the brake pressure
between the front and rear wheels, in such
a way as to achieve optimum braking perfor-
mance irrespective of the car’s speed and
load.
The ABS system has a built-in diagnostic
function which will switch on the Anti-lock
brake warning light if a fault is detected in
the system (see page 50).
WARNING
 It is prudent to try your brakes from
time to time, especially when driving in
heavy rain, through water collected on
the road, in snow, on a wet road sur-
face or in salty slush. In such condi-
tions, the brakes may take longer than
normal to take effect. To rectify this,
touch the brake pedal periodically to
dry the brakes out.
 The same applies after the car has
been washed or when the weather is
very humid.
 Avoid parking the car with wet brakes.
Before parking, and if the traffic condi-
tions allow, brake quite heavily so that
the brake discs and pads warm up and
dry.
 The brakes are power assisted and it
should be kept in mind that the servo
unit only provides the power assis-
tance when the engine is running.
 The brake pressure required when the
engine is off,(e.g. when the car is on
tow) is roughly four times the normal
pedal force required. The pedal also
feels hard and unresponsive.
WARNING
 The additional safety afforded by the
ABS system is not designed to allow
drivers to drive faster but to make
normal driving safer.
 To stop as quickly as possible, without
loss of directional stability, whether
the road surface is dry, wet or slippery,
press the brake pedal down hard-
without letting up, declutching
simultaneously, and steer the car to
safety.
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169 Starting and driving
Traction Control SystemHow the system works The traction control system (TCS) is
designed to prevent wheelspin. This
enables the car to achieve the best possible
grip and, hence, maximum tractive effort,
together with greater stability.
The TCS system uses information from the
ABS system’s wheel sensors to detect
when the front (driving) wheels are rotating
faster then the rear wheels. It then monitors
whether one driving wheel is rotating faster
than the other. If so, the faster wheel is
retarded until both wheels are rotating at the
same speed.
If the two front wheels are rotating at the
same speed but are turning faster than the
rear wheels, the torque from the engine is
reduced to eliminate the difference.
The process continues until all the wheels
are rotating at the same speed.
The advantages of the TCS system become
most apparent when the cohesion between
the front wheels and the road surface is so
low that one or both of the wheels would
lose their grip were the car not equipped
with the TCS, e.g.:  When the car is pulling away or accelerat-
ing with the front wheels on different sur-
faces (e.g. one slippery and one dry). The
TCS then functions like an electronic dif-
ferential lock.
 When the car is pulling away or accelerat-
ing on a slippery road, in which case the
TCS eliminates wheelspin. The same
applies when the car is reversing.
 On cornering, if there is a tendency for the
inner front wheel to rotate faster than the
other wheels.
 On overtaking.
TCS OFF The TCS OFF indicator on the main instru-
ment panel will come on:
 If a fault has been detected and the
system has therefore been switched off.
 If there is a fault in the ABS system.
 If the system has been switched off man-
ually.
The indicator light will also come on for
4 seconds when the ignition key is turned to
ON, while an internal system check is per-
formed. TCS indicator The indicator light will come on for
4 seconds when the ignition key is turned to
ON, while an internal system check is per-
formed.
The TCS light in the tachometer comes on
when the system is operative, i.e. when the
wheels are not rotating at the same speed.
The fact that the TCS system is operative
indicates that the limit for grip has been
exceeded and that the driver must exert
greater care.
WARNING
In normal driving, the TCS system
enhances the safety of the car, but it does
not mean that the car can be driven faster.
The same care and prudence normally
applied should be displayed on cornering
and when driving on slippery roads.
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217 Car care and technical information
Fuse panel in instrument panel
# Amp Function
A 30 Trailer lights
B 10 Automatic transmission
C 7,5 Electric door mirrors; DICE
1 15 Brake lights; shift-lock override
2 15 Reversing lights
3 10 Parking lights, left
4 10 Parking lights, right
5 7,5 DICE / TWICE
6 30 Electric windows, right
6B 5 Stop lights, trailer
7 10 Fuel injection
8 15 Trunk lighting; trunk lock; door lighting; SID; car
phone
9 15 Audio System; diagnostic instrument; CD changer
10 15 Memory function, door mirrors; heating, rear seat
11 30 Central locking; electrically adjusted passenger seat
12 7,5 Automatic transmission
13 20 Audio System, amplifier
14 30 Ignition system, engine
15 15 Preheated oxygen sensor (catalytic converter)
16 20 DICE (direction indicators)
16B – –
17 20 Engine-management system
18 7,5 Door-mirror heating
19 20 Fuel pump
20 15 ACC; interior lighting; rear fog light
21 10 Audio System; rear-view mirror with auto dimming
function; telematics
22 40 Interior fan; air pump (3.0t V6 only)
23 15 Sunroof
24 40 Rear-window heating
25 30 Electrically adjustable driver’s seat; fuel-filler flap
26 7,5 ABS brakes; ACC
27 10 Engine-management system
28 7,5 Airbag (SRS)
29 7,5 Automatic transmission
IB530
BC123456 A
14
121110987
13
6B
1516
2324
222120191817
16B
5425262728293031
3635343332
39383755525356
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218 Car care and technical informationRelay panel under instrument panel Relay panel under instrument panel (cont.)30 7,5 Starter motor
31 7,5 Cruise control; water valve; fog lights, front
32 15 Ventilated front seats
33 7,5 Direction-indicator switch
34 30 Cigarette lighter
35 15 Daytime running light
36 30 Electric windows, left
37 30 Windshield wipers; rain sensor
38 30 Electric heating, front seats
39 20 Limp-home solenoid (automatic transmission)
52-5
6Spare fuses
# Function
A
B Electric heating of rear seat
C
D
E Main relay (engine management system)
F Fuel filler flap
G Fuel pump
H Ignition switch
I Rear-window / door mirrors heating
J Reversing lights
KStarter relay
L Limp-home function
IB531
A
BC
D
GEF
HI
KL J
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220 Car care and technical informationRelays
# Function
1 Washer, front/rear
2 Low beam headlight
3 High beam headlight
4 Extra lights (accessory)
5.1 Horn
5.2 Rain sensor
6 Wiper, rear (9-5 Wagon)
7 Radiator fan, low speed
8 Radiator fan, high speed, left fan
9 A/C-compressor
10.1 Front fog lights
10.2 Headlight wipers
11 Windshield wipers
12 Radiator fan, high speed, right fan
13 Autochecking of headlights
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261 Specifications
Several of the systems in your Saab
car can be adjusted to better fit your
individual needsSome functions are governed by legal
requirements and cannot therefore be
reprogrammed.
Consult an authorized Saab dealer for fur-
ther information.
Car alarm/central locking system:
 The sound level of the siren when locking/
unlocking, HIGH or LOW.
 The number of blinks when locking/
unlocking, 1 to 7.
 Automatic locking of the trunk when the
car is driven, 1 to 8 mph (2-14 km/h), YES
or NO.
 Preclude the unlocking of the trunk while
the car is driven, YES or NO.
 Automatic locking of the trunk after
1 second-4 minutes if it has not been
opened, YES or NO.
 Automatic locking of the trunk when it is
closed, YES or NO.Saab Information Display:
 Outdoor temperature display can be
adjusted.
Miscellaneous:
 Select the on-time for heated rear seat.
 Coolant temperature gauge adjustment
can be increased/decreased.
 Fuel level gauge adjustment can be
increased/decreased.
 Additional sweep of the wipers after wind-
shield washer function (ON or OFF).
 Follow me home on-time can vary from 20
to 50 seconds.
 Night panel illumination deactivation
speed for the speedometer can be
adjusted.
Following adjustments can be done
by the driver:Automatic Climate Control (ACC):
To alter the preprogrammed ”AUTO” start
up mode with your own preferences you can
manually select the desired settings for:
 Temperature.
 Fan speed.
Air distribution.
See ”Programming I” on page 76 and ”Pro-
gramming II” on page 77.
Saab 9-5 Audio System (see page 97):
 Maximum starting volume (when the
radio is switched on).
 Telephone volume (if the car is equipped
with a phone connected to the audio sys-
tem).
 Speed dependent volume (volume
increases or decreases with vehicle
speed).
 Loudness.
Alarm system:
The glass breakage sensor can be tempo-
rarily disabled, see page 42.
Daytime Running Lights:
To disable, turn off the ignition and pull out
fuse 35, see page 217.
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266 IndexSteering, technical data
__________ 256
Stone-chip damage, repairing
______ 233
Storage compartments
___________ 131
Sun visors
_____________________ 130
Sunroof
_______________________ 128
Suspension
____________________ 256
Suspension, technical data
________ 256
Switches
_______________________ 63
Systems, adjustment
____________ 261
TTCS OFF
______________________ 53
Table of fuses __________________ 217
Tachometer
_____________________ 54
Tailgate, opening
________________ 38
Tank gauge
_____________________ 55
Technical data _________________ 249
Telematics
____________________ 107
Temperature control, ACC
_________ 72
Temperature gauge, engine ________ 55
Temperature zones, ACC
__________ 72
Textile carpeting
________________ 232
Through-load hatch ______________ 136
Tie Downs
_____________________ 136
Tightening torque, wheel studs
_____ 226
Tire markings
_____________ 221
, 222
Tire pressure
______________ 179
, 221
Tires
____________________ 221
, 257
Tools
_________________________ 144
Touching-in the paintwork
_________ 233
Towbar attachment
______________ 174Towbar load
___________________176
Towing the car _________________181
Towing, automatics
______________181
Traction
_______________________169
Trailer weights
__________________251
Trionic
________________________191
Trip computer
___________________57
Trip meter
______________________54
Trunk
_________________________134
Trunk lid, opening
________________38
Turbo gauge
____________________56
Turbo, points to note
_____________151
UUnder the hood, 3.0t V6
__________190
Under the hood, 4-cyl
____________189
Upholstery and trim
______________231
Upholstery and trim, care of
_______231
Useful tips, ACC
_________________78
VVanity mirrors
__________________130
Ventilated front seats
____________123
Viscosity, engine oil
_____________252
WWarning labels
___________________8
Warning light, AIR BAG
___________30
Warning lights
___________________48
Warning triangle ________________144Washers
_____________________ 203
Washers, windshield
____________ 204
Washing the car
_______________ 232
Waxing and polishing
___________ 233
Wear indicators, tires ____________ 223
Wheels and tires
___________ 221
, 257
Wheels and tires, sizes
__________ 257
Window-glass sensor, car alarm
____ 42
Windshield washers
_____________ 68
Windshield wipers
_______________ 68
Wiper blades, headlamp
_________ 203
Wiper blades, replacing __________ 203
Wipers and washers
_________ 68
, 203
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