2004 SAAB 9-3 brake sensor

165 Starting and driving
Electronic Stability
Program (ESP)Anti-skid systemThe Electronic Stability Program employs
both the antilock braking system (ABS) and
the traction control system (TCS). It is a
safety system that helps the driver to stabi-
lize the car in unusual circumstances that
can otherwise 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 critical
situations.
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 to help
avoid a skid
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224 Car care
Fuse panel in end of fasciaNo. Amp. Function
1 15 Steering wheel lock
2 5 Steering column unit; ignition switch
3 10 Hands-free; CD-player/CD-changer in cabin; SID
4 10 Main instrument unit; manual climate control;
automatic climate control (ACC)
5 7.5 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
10 30 Trailer socket; electrical socket in storage compart-
ment between seats
11 10 Data link connection (diagnostics)
12 15 Interior lighting incl. glove compartment
13 10 Accessories
14 20 Radio, sound system I; control panel,
Infotainment System
15 30 Control module in driver’s door
16 - -
17 - -
18 7.5 Manual climate control; fan
19 - -
20 7.5 Headlight levelling switch
21 7.5 Hands-free; brake light switch; manual climate
control; clutch pedal switch
22 30 Cigarette lighter
23 40 Cabin fan
24 7.5 Airbag control module
25 - -
26 5 Yaw sensor (cars with ESP)
27 - -
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225 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
820Trailer
9--
10 30 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 seat
16 15 Seat heating, right seat
17 7.5 Autodimming rearview mirror; rain sensor; tire
pressure monitoring
18 15 Sunroof
19 7.5 Telematics (OnStar)
20 7.5 DVD player (navigation system)
21 7.5 Saab Parking Assistance (SPA); control module in
rear doors
22 30 Amplifier, sound system III
23 - -
24 10 Movement sensor; CD changer in trunk (accessory)
25 30 Electrically adjustable driver’s seat with memory
Trunk fuse panel, Sport Sedan
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251 Car care
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: max 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
Waxing and polishingDo not wax a new car during the first three
or four months. In fact, there is no need to
polish the car before the paintwork has
started to dull through oxidation. Other than
in exceptional cases, do not use abrasive
polishes containing a cutting agent on a new
car. Always wash the car thoroughly before
waxing or polishing.
Touching up the paintDamaged paintwork should be treated as
soon as it is discovered: the longer it is left,
the greater the risk of corrosion. The anti-
corrosion warranty does not cover corrosion
resulting from untreated defects.
Paintwork damage sustained in a crash is
usually extensive and can only be properly
restored by professionals.
However, you can repair small scratches
and stone chip damage yourself. The nec-
essary tools and materials, such as primer,
touch-up paint and brushes, are available
from your Saab dealer.
In the case of minor flaws in the paintwork,
where the metal has not been exposed and
an undamaged layer of paint remains,
touch-up paint can usually be applied
directly, after any dirt has been scraped
away using a pointed knife.
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.
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282 Technical data
Parking assistance
Contact Saab dealer.
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.
Tire pressure
system failure.
Contact Saab dealer.
Tire pressure low,
rear left.
Check tires.
Tire pressure low,
rear right.
Check tires.
Tire pressure low,
front right.
Check tires.
Tire pressure low,
front left.
Check tires.
Flat tire rear left.
Make a safe stop.
Flat tire rear right.
Make a safe stop.
Flat tire front left.
Make a safe stop.
Flat tire front right.
Make a safe stop.
Time for service.
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