2009 SAAB 9-5 sensor

202 Car care and technical informationChanging bulbs
Check that the new bulb is working when
finished.
Use only "Long Life" bulbs.
Headlight aiming, see page 248.
Xenon headlight3Xenon headlights produce roughly twice as
much light as halogen bulbs and have a sig-
nificantly longer service life.
The lamp units consist of a gas discharge
lamp containing xenon. When the lights are
switched on a very high voltage activates
the xenon gas. The lamps soon reach full
intensity.
Cars with xenon headlights have automatic
levelling. The levelling system comprises
two sensors, one on the front axle, one on
the rear axle and a control unit under each
of the two headlight housings. Headlight
alignment is regulated automatically to pre-
vent dazzling oncoming traffic. Alignment is
also adjusted during braking.
WARNING
Before changing a bulb in the engine bay,
switch off the engine to avoid danger of
fingers and hands being injured by
moving parts.
The radiator fan can start up even when
the engine is switched off.
Xenon headlights3 are high voltage
and must therefore be changed at a
workshop. We recommend that you
contact an authorized Saab work-
shop. Work involving high-voltage
components is potentially lethal.NOTICE Since the headlight lenses are made
of plastic, rinse dried-on dirt with
water and allow it time to soften up
before cleaning the lenses. Avoid
rubbing the lenses when dry and
never use solvents.
 Use de-icer spray instead of scraping
the ice off.
NOTICE Do not fit bulbs with a higher rating
than 55 W, since the headlight reflec-
tor and the wiring of the car are not
designed for a higher wattage.
 Switch off the ignition before chang-
ing a bulb, to avoid possible short-cir-
cuiting.
 Do not touch the glass of the bulbs
with your fingers. The oil on your skin
can shorten the life of the bulb.
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216 Car care and technical informationFuse panel in instrument panel
# Amp Function
A 30 Trailer lights
B 10 Automatic transmission
C 7.5 Electric door mirrors; DICE: manual beam length
adjustment3
1 15 Brake lights; Park Brake Shift Lock (cars with auto-
matic transmission)
2 15 Reversing lights
3 10 Parking lights and taillights, left
4 10 Parking lights and taillights, right
5 7.5 DICE / TWICE
6 30 Electric windows, right; trailer charging
6B 7.5 Brake lights, trailer
7 10 Engine injectors
8 15 Trunk lighting; trunk lock; door lighting; parking
assistant3; SID
9 15 Audio System; CD changer3
10 15 Heating, rear seat3; moonroof3, remote control
receiver
11 30 Electrically adjusted passenger seat3
12 7.5 Automatic transmission3
13 20 Audio System, amplifier
14 30 Ignition system, engine
15 20 Fuel pump
16 20 DICE (direction indicators)
16B – OnStar3
17 20 Engine-management system; main instrument;
DICE/TWICE
18 40 Door-mirror heating; rear-window heating
19 10 OnStar3; Telematics3
20 15 ACC; interior lighting; rear fog light; high beam flasher
21 10 Audio System; rear-view mirror; load angle sensor3;
navigation3; Cruise Control3
22 40 Interior fan
23 15 Central locking; navigation3; door mirror memory3
24 20 Main light switch
25 30 Electrically adjustable driver’s seat
IB2439
BC123456 A
14
121110987
13
6B
1516
2324
222120191817
16B25262728293031
3635343332
393837
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217 Car care and technical information
Relay panel under instrument panel
26 7,5 Driver seat memory3; mirrors memory3;
moonroof3; parking assistant3; seatbelt reminder;
ACC
27 10 Engine-management system; SID; main instrument
28 7.5 Airbag
29 7.5
ABS/ESP
®
30 7.5 Starter motor; transmission control module (cars with
automatic transmission)
31 7.5 Cruise control3; water valve; fog lights, front3; rain
sensor3
32 – –
33 7.5 Direction-indicator switch
34 30 12-volt socket (cigarette lighter) front/rear
35 15 Daytime running light
36 30 Electric windows, left
37 30 Windshield wipers
38 30 Electric heating, front seats3
39 20 Limp-home solenoid
# Function
A –
B Electric heating of rear seat
C1 –
C2 –
D–
E Main relay (engine management system)
F–
GFuel pump
H Ignition switch
I Rear-window / door mirrors heating
IB3916
A
BC1
C2
L2 L1 D
GE
F
H
I
K J
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218 Car care and technical information
Fuse box under hoodFuses J–
KStarter relay
L1 Limp-home function
L2 –
# Amp Function
1 40 Radiator fan, high speed
240
ABS/ESP
®
330
ABS/ESP
®
4 7.5 Load angle sensor (cars with xenon headlights)
515Heater
6 10 A/C; car alarm siren
715Bulb test
8––
9 20 Headlight washers
43
2
IB1797
2 1
14 1312 7 6
5 1
15 168
11
10 9
178 5
17 14 11 7 4
16 13 69
10 3
15 12
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219 Car care and technical information
Relays
10 15 High beam headlight, left
11 15 Low beam headlight left
12 15 High beam headlight, right
13 15 Low beam headlight, right
14 30 Radiator fan, high speed
15 15 Fog lights (front spoiler)
16 20 Wiper, rear
17 15 Horn
18 – –
# Function
1 Bulb test; head light; high beam flasher
2 Headlight washer
3 Front fog lights
4 Wiper, rear (9-5 SportCombi)
5–
6–
7 Rain sensor
8 Radiator fan, low speed
9 Radiator fan, high speed
10 A/C-compressor
11 Radiator fan, high speed, right fan
12 Horn
13 Extra lights (accessory)
14 High beam headlight
15 Low beam headlight
16 –
17 Windshield wipers
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231 Car care and technical information
Steps for Determining Correct
Load Limit1 Locate the statement “The
combined weight of occupants and
cargo should never exceed
XXX pounds” on your vehicle´s
label.
2 Determine the combined weight of
the driver and passengers that will
be riding in your vehicle.
3 Subtract the combined weight of the
driver and passengers from
XXX kilograms or XXX pounds.
4 The resulting figure equals the avail-
able amount of cargo and luggage
load capacity. For example, if the
“XXX” amount equals 1400 lbs. and
there will be five 150 lb. passengers
in your vehicle, the amount of avail-
able cargo and luggage load capac-
ity is 650 lbs. (1400–750 (5x150) =
650 lbs.).5 Determine the combined weight of
luggage and cargo being loaded on
the vehicle. That weight may not
safely exceed the available cargo
and luggage load capacity calcu-
lated in Step 4.
6 If your vehicle will be towing a trailer,
load from your trailer will be trans-
ferred to your vehicle. Consult this
manual to determine how this
reduces the available cargo and
luggage load capacity of your vehi-
cle.
Winter tiresWinter (snow) tires are recommended for
winter climates where the majority of your
driving will be done on snow and ice. Winter
tires should be fitted to all four wheels to
maintain a proper balance. Your Saab
dealer can advise you of to the correct size
tire for your car (if different from the original
size) and also supply Saab approved winter
tires pre-mounted on steel or alloy rims.
Winter tires normally use a different speed
rating compared to summer/all season tires.
Make sure not to exceed the stated speed
rating on the tires you use.
Make sure that wheels with sensors for tire
pressure monitoring are fitted during
replacement if the car has automatic tire
pressure monitoring.
Tire date codeTires should be regarded as perishable
goods. As the tires age, the rubber becomes
progressively harder, and the roadholding
ability of the tires diminishes. This is partic-
ularly true on winter tires.
Tires now have a date-code marking for the
year of manufacture. The first two digits
denote the week number and the two last
digits the year followed by a filled triangle.Tire direction of rotationThe direction of rotation is important for the
majority of tires. These tires have a marking
on the side of the tire. The marking may
state "Tire rotation" together with an arrow
or the text "Facing out". The tire must rotate
in the same direction for its entire service
life.
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232 Car care and technical informationAutomatic tire pressure
monitoring systemThe system consists of a sensor in each
wheel and a commopn receiver. The sen-
sors are located inside the tire in direct con-
nection with the air pressure valves.
Make sure that wheels with sensors for tire
pressure monitoring are fitted during
replacement if the car has automatic tire
pressure monitoring.Tire pressure information is transmitted
wirelessly to the receiver.
The system checks the tire pressures when
speed exceeds 19 mph (30 km/h).
The system is self-programming which
means that the wheels can be shifted
around without any need for adjustment.
The spare wheel has no sensor.
The sensor batteries last for 10 years or
around 160 000 km. The battery cannot be
replaced. The whole sensor must be
replaced.The system does not warn if the tire pres-
sure is too high.
WARNING
The system is an aid to the driver. The
driver always has the responsibility that
the tires have the correct air pressure.
For optimum safety, economy and com-
fort tire pressures should be checked reg-
ularly even if the automatic tire pressure
monitoring has not alarmed.
NOTICETire replacement must take place with
great care to avoid damaging the sensors
that are built together with the valves.
 Remove the rear side first.
 Start to remove the tire opposite the
valve.
 During removal the tire machine must
not come closer than ±10° from the
valve.
 During fitting, start 20° after the valve
and finish 20° before the valve.
 Do not inflate the tire with pressure
higher than 102 psi (700 kPa).
Valve with sensor
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233 Car care and technical information
If the tire pressure decreasesIf the tire pressure decreases to 0.4 bar
(6 psi) below the recommended pressure
then a warning is shown on the SID as to
which tires are affected.
Adjust the pressure as soon as possible.If the tire pressure continues to decrease
then an alarm is shown on the SID when the
pressure has decreased to 23 psi (159 kPa)
which is the lowest permitted pressure for
the tire.
An alarm is also received when leakage is
greater than 3 psi/min. (20 kPa/min.).
Reduce speed (avoid heavy braking and
significant steering wheel movement) and
stop the car as soon as possible at a suita-
ble location. Replace the defective wheel.
The fault message can remain for up to
10 minutes after restarting the car. Then it
disappears if the tire pressure is correct.
Check/adjust the pressure in the other tires
when a fault message is shown.Note that the tire pressure can decrease
without a puncture. The pressure could
decrease around 3 psi (20 kPa) during a
three month period.
The outside temperature could also affect
tire pressure.
The specified tyre pressures are valid for
cold tyres. The increased tyre pressure
resulting from extensive driving must not be
reduced. Tyre pressure table, see page
263.
If the system has triggerd a low pressure
warning or alarm then the tire pressure must
be adjusted to the recommended pressure
in order to put out the warning or alarm.
For further information on tire air pres-
sure, see page 220.
Allow 10 minutes for the system to recogn-
ise the wheel/sensors positions after fitting
a new set of tires. During this period no low
pressure warning or alarm can be triggered.
Tire pressure low,
rear left. Check tires.
Low tire pressure front
right. Make a safe stop.
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