2006 SAAB 9-3 brake sensor

183 Starting and driving
Hill Start Assist (HSA)3(Hillstarting assistance)
This function facilitates starting on a hill.
When the parking brake has been released
and the foot is moved off the brake pedal it
can take approx. 1.5 s before the brakes
release. The brakes release as soon as the
accelerator pedal is depressed within this
time.
Traction Control
System (TCS)Anti-spin systemHow the system worksThe 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 uses information from the ABS
wheel sensors to detect when the front (driv-
ing) wheels are rotating faster then the rear
wheels.
If the two front wheels are rotating faster
than the rear wheels, the torque from the
engine is reduced to eliminate the differ-
ence.
The process continues until all the wheels
are rotating at the same speed.
The advantages of the TCS 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
surfaces (e.g. one slippery and one dry),
the TCS functions like an electronic differ-
ential lock, making sure that both wheels
rotate at the same speed. The system
also functions when the car is reversing.
 When cornering, if the inside front wheel
rotates faster than the other wheels.
TCS OFF
lights up under the speedometer if:
 a fault has been detected and the system
has therefore been switched off
 there is a fault in the ABS system
 the system has been switched off
manually.
WARNING
When driving normally, the TCS system
helps to improve the car’s directional
stability. The TCS must not be regarded
as a system to enable the driver to main-
tain higher speeds. The same precau-
tions must be adopted as normal for safe
cornering and driving on slippery roads.
93U S M 06.book Page 183 Friday, February 18, 2005 1:15 PM
ProCarManuals.com

185 Starting and driving
Electronic Stability
Program (ESP)3Anti-skid system
The Electronic Stability Program employs
both the antilock braking system (ABS) and
the traction control system (TCS). It is a
system that helps the driver to stabilize the
car in unusual circumstances that can oth-
erwise be difficult to handle.
How the ESP system worksThe Electronic Stability Program can help to
prevent the car from skidding by braking
one or several wheels independently of the
driver. The engine output is then also
reduced to prevent the driving wheels from
spinning. The car has sensors that measure
wheel speed, yaw rate, lateral acceleration,
steering wheel position and braking pres-
sure. The values provided by these sensors
are used to calculate the actual direction of
the car, the intentions of the driver and
whether the ESP should be engaged.
If this direction does not agree with that
intended by the driver, calculated from the
steering wheel position, the ESP is
engaged.
The ESP improves the driver’s chances
of retaining control over the car in a critical
situation.
WARNING
When driving normally, the ESP system
helps to improve the car’s directional
stability. The ESP must not be regarded
as a system to enable the driver to main-
tain higher speeds. The same precau-
tions must be adopted as normal for safe
cornering and driving on slippery roads
must be adopted.
Illustration of how the system applies the
brakes on one or several wheels in order
to reduce the likelihood of the car skidding
93U S M 06.book Page 185 Friday, February 18, 2005 1:15 PM
ProCarManuals.com

249 Car care
Fuse panel in end of fasciaNo. Amp. Function
1 15 Steering wheel lock
2 5 Steering column unit; ignition switch
310 Hands-free3; CD-player3/CD-changer in cabin3;
SID
410 Main instrument unit; manual climate control;
automatic climate control (ACC)3
57.5 Control module in front doors; Park Brake Shift Lock
(automatic transmission)
6 7.5 Brake light switch
7 20 Dash fuse panel; fuel filler door
8 30 Control module in passenger front door
9 10 Dash fuse panel
1030 Trailer socket3; electrical socket in storage com-
partment between seats3
11 10 Data link connection (diagnostics)
12 15 Interior lighting incl. glove box
13 10 Accessories
1420 Radio, sound system I3; control panel,
Infotainment System3
15 30 Control module in driver’s door
16 5 Passenger Sensing System
17 - -
18 7.5 Manual climate control3
19 - -
20 7.5 Headlight levelling switch3
217.5 Hands-free3; brake light switch; manual climate
control3; clutch pedal switch
22 30 Cigarette lighter3
23 40 Cabin fan
24 7.5 Airbag control module
25 - -
26 5 Yaw sensor (cars with ESP)
27 - -
93U S M 06.book Page 249 Friday, February 18, 2005 1:15 PM
ProCarManuals.com

250 Car care
Trunk fuse panel, left-hand sideNo. Amp. Function
1–5 MAXI -
6 30 Control module in left rear door
7 30 Control module in right rear door
820Trailer3
9--
1030 Left-hand brake light; rear right turn signal; right tail-
light; right reversing light; high-mounted brake light;
trailer lights
11 - -
12 - -
13 - -
14 - -
15 15 Seat heating, left seat3
16 15 Seat heating, right seat3
17 7.5 Autodimming rearview mirror3; rain sensor3
18 15 Sunroof3
19 7.5 Telematics (OnStar)3
20 7.5 DVD player (navigation system)3
217.5 Saab Parking Assistance (SPA)3; control module in
rear doors
22 30 Amplifier, sound system III3
23 - -
24 10 Movement sensor3; CD changer in trunk 3
25 30 Electrically adjustable driver’s seat with memory3
Trunk fuse panel, Sport Sedan93U S M 06.book Page 250 Friday, February 18, 2005 1:15 PM
ProCarManuals.com

278 Car carethoroughly at the end of winter. Clean the
underside of the car by hand if the car is usu-
ally washed in an automatic car wash with-
out special facilities for underbody cleaning.
Never wash or leave the car to dry in the
sun, but wipe it dry with a chamois leather
immediately after washing to avoid smears
and streaks.
Clean the inside of window glass using a
proprietary window cleaner. This is particu-
larly important when the car is new, as
upholstery and trim have a tendency to
sweat a little at first.
Keep the glass well polished, as this helps
to prevent misting.
Clean the outside of the windows with Saab
washer fluid. This is especially important if
the car has been washed in an automatic
car wash, as sometimes a wax treatment is
used that can contaminate the windshield
and impair the performance of the wipers.
In the U.S., Saab offers a full complement of
car care products. See your dealer or visit
us at www.saabcatalog.com.Convertible:
 Wash the soft top with a mild soap solu-
tion and lukewarm water. For spot clean-
ing the top, a finger nail brush can also be
used. Stroke the brush in the direction of
the fabric, not across the threads.
 If a pressure washer is used be heedful of
the following recommendations:
 on the lower part of the car (not higher
than the door handles): max pressure
of 100 bar and not closer than 8 in.
(20 cm).
 on the upper part of the car: tax pres-
sure of 100 bar and not closer than
32 in. (80 cm).
 Do not use any drying chemicals or water-
proofing agents.
 Avoid automatic car washes.
NOTICE Try your brakes on leaving a car wash.
Wet brake discs reduce the perfor-
mance of the brakes.
 Fixed antennae, such as for a mobile
phone, must be removed if the car
goes through an automatic car wash.
 Cars with Saab Parking Assistance:
Do not spray the sensors or closer
than 8 in. (20 cm) to the sensors with
a pressure washer, as this can
damage them.
93U S M 06.book Page 278 Friday, February 18, 2005 1:15 PM
ProCarManuals.com

311 Technical data
Parking assistance sensor
interference.
Close doors.
Left brake light failure
Left high beam failure.
Left low beam failure.
Rear fog light failure.
Right brake light failure.
Right high beam failure.
Right low beam failure.
High mounted brake light
failure.
Left front turn signal
failure.
Left rear turn signal
failure.
Right front turn signal
failure.
Right rear turn signal
failure.
Left rear position light
failure.
Right rear position light
failure.
Low tire pressure,
rear left.
Make a safe stop.
Low tire pressure,
rear right.
Make a safe stop.
Low tire pressure,
front right.
Make a safe stop.
Low tire pressure,
front left.
Make a safe stop.
Low tire pressure.
rear left.
Check tires.
Low tire pressure.
rear right.
Check tires.
Low tire pressure.
front left.
Check tires.
Low tire pressure.
front right
Check tires.
Tire pressure
system failure.
Contact Saab dealer.
Time for service.
93U S M 06.book Page 311 Friday, February 18, 2005 1:15 PM
ProCarManuals.com