2009 SAAB 9-3 ignition

204 Car careEmission control
systemsThe systems for controlling emissions to the
atmosphere require regular checking and
adjustment at the intervals specified in the
service program.
In addition to meeting the exhaust emission
regulations and thereby helping to keep the
environment clean, a correctly tuned engine
will also give maximum fuel economy.
Saab Trionic engine
management system, 4-cyl
engineThe Saab Trionic engine management
system is a unique Saab development that
combines sequential mult iport fuel injection,
electronic distributorless ignition and turbo-
charger boost pressure control into one sys-
tem.
The Trionic engine control module (ECM)
monitors many different engine parameters
such as:
 Intake manifold pressure
 Intake air temperature
 Crankshaft position
 Engine coolant temperature
 Throttle position
 The oxygen content of the exhaust gases.
The ECM receives information regarding
engine knocking from a sophisticated feed-
back function in the ignition discharge unit.
By processing all of this information, the Tri-
onic system can control fuel injector open-
ing duration, ignition timing and turbo-
charger boost pressure to provide excellent
engine performance while maintaining low
emissions and fuel consumption.
WARNING
Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth
defects and reproductive harm. In addi-
tion, certain fluids contained in vehicles
and certain products of component wear
contain or emit chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm.
NOTICEThe Trionic engine management system
continuously monitors the operation of
these systems and has on-board diag-
nostic capabilities (OBD II). If the Service
Engine Light also known as CHECK
ENGINE light in the main instrument illu-
minates, the Trionic ECM has detected a
problem. The car will continue to operate,
but performance may be diminished. You
should have your car checked by a work-
shop as soon as possible. We recom-
mend that you contact a Saab dealer.
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205
Car care
Bosch ME9 engine management
system, V6 engineThe Bosch ME9 engine management
system is a system that combines sequen-
tial multiport fuel injection, electronic distrib-
utorless ignition and turbocharger boost
pressure control into one system and intake
camshaft phasing control.
The ME9 engine control module (ECM)
monitors many different engine parameters
such as:
 Charge air pressure
 Intake air temperature
 Crankshaft position
 Engine coolant temperature
 Throttle position
 The oxygen content of the exhaust gases.
By processing all of this information, the
ME9 system can contro l fuel injector open-
ing duration, ignition timing, intake camshaft
phasing and turbocharger boost pressure to
provide excellent engine performance while
maintaining low emissions and fuel con-
sumption.
ORVR (Onboard Refueling Vapor
Recovery)All hydrocarbons formed when refueling will
be recovered by the car and not released
into the atmosphere. The hydrocarbons are
absorbed in an evaporative emission canis-
ter. When the engine is subsequently
started, the evaporative emission canister is
gradually purged as air is sucked into it
through a shut-off va lve. The hydrocar-
bon/air mixture passes through the evap
canister purge valve and into the engine
where it is burned. “ Refueling”, see
page 156.
When refueling, make sure you screw the
filler cap on and keep turning until it has
clicked 3 times.
NOTICEThe ME9 engine management system
continuously monitors the operation of
these systems and has on-board diag-
nostic capabilities (OBD II). If the Service
Engine Light also known as CHECK
ENGINE light in the main instrument illu-
minates, the ME9 ECM has detected a
problem. The car will continue to operate,
but performance may be diminished. You
should have your car checked by a work-
shop as soon as possible. We recom-
mend that you contact a Saab dealer.
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218 Car careChanging bulbs
Auto checking of lightsThe bulbs that are most important from the
point of view of traffic safety are monitored
by the car’s electrical system. If one of these
bulbs should fail, a message will be dis-
played on the SID.
Example of SID message:
The following bulbs are not checked: park-
ing lights, front fog lights, reversing lights,
license plate lighting, side marker lights and
side direction indicators.
SportCombi
The tail lights and brake lights consist of
LEDs. If approx. 3/4 of the LEDs on one side
are broken then this is indicated in the SID. If a stop light bulb fails
SportSedan:
If a stop light bulb fails, the
adjacent taillight will act as a stop light to
ensure traffic safety. Change the broken
bulb when possible.
All rear light bulbs are of the same type and
rated 21 W, with the exception of the license
plate lighting which is rated 5 W.
WARNING
Before changing a bulb in the engine
bay, switch off the engine to avoid the
danger of fingers and hands being
injured by moving parts.
The radiator fan can cut in even when the
engine is switched off.NOTICESwitch off the ignition before changing a
bulb, to avoid possible short-circuiting.
Left low beam failure.
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235
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 3
4 10 Main instrument unit;
automatic climate control
(ACC) 3
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
3; electrical socket in storage compart-
ment between seats 3
11 10 Data link connection (diagnostics)
12 15 Interior lighting incl. glove box
13 10 Accessories
14 20 Amplifier 2, Sound System 3
15 30 Control module in driver’s door
16 5 Passenger Sensing System
17 - -
18 - -
19 - -
20 7.5 Headlight levelling switch 3
21 7.5 Hands-free 3; brake light switch; clutch pedal switch
22 30 Cigarette lighter 3
23 40 Cabin fan
24 7.5 Airbag control module
25 - -
26 5
Yaw sensor (cars with ESP
®)
27 - -
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239
Car care
Fuse panel in front of battery 3
Relays
R 1 Washer fluid pump, windshield
R2 -
R3 -
R4 -
R 5 Flash-to-pass
R6 Horn
R7 -
R8 Starter motor
R 9 Windshield wipers ON/OFF
R10 Washer fluid pump, rear window 3
R11 Ignition +15
R12 Windshield wipers, high/low speed
R13 -
R14 Washer fluid pump, headlights 3
R15 -
R16 -
No. Amp. Function 1 - Air pump, secondary air 3
2 20 Fuel pump; preheated oxygen sensors (lambda
probe)
3 10 A/C compressor
430Main relay
Relays 1-
2 A/C-compressor
3 Preheated oxygen sensors (lambda probe)
4 Main relay, engine (ECM/EVAP/injectors)
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299 Index
Headlight flasher
_________________ 99
Headlight levelling ________________ 98
Headlights
______________________ 98
Hood
_________________________ 202
Horn _________________________ 118
Horn button
____________________ 118
IIf a tire goes flat
________________ 247
Ignition switch
__________________ 150
Immobilizer
_____________________ 55
Important considerations for driving
_153
Important information, petrol-engined
cars with catalytic converters
_____ 154
Indicator lights
___________________ 82
Inflation, tires __________________ 240
Information about fuel
____________ 158
Instrument illumination, adjusting
___ 100
Interior lighting, Convertible
________ 79
Interior lighting, SportSedan and
SportCombi
___________________ 131
Interior rearview mirror
___________ 123
Intermittent malfunctioning, central
locking
_______________________ 50
JJump starting
__________________ 197
KKey
___________________________ 48
Kick-down
_____________________ 164
LLabeling, tire sidewall
____________ 248
Labels and plates, location
________ 292
Lashing eyes, SportCombi ________ 144
Lashing eyes, SportSedan ________ 139
Laying the car up
_______________ 179
LATCH (child safety) ______________ 25
Leather upholstery, cleaning
_______ 266
Lighting in luggage compartment,
Convertible
____________________ 79
Limp-home
____________________ 154
Limp-home, automatic transmission
_165
Load carriers, roof
_______________ 192
Load indices, tires _______________ 249
Loading your vehicle _____________ 250
Load-through hatch, SportCombi
___ 143
Load-through hatch, SportSedan ___ 138
Locking a car with flat battery
_______ 51
Locks
__________________________ 48
Long-term parking
_______________ 179
Luggage compartment
___________ 136
Luggage compartment lighting,
Convertible
____________________ 79
Luggage compartment lighting,
SportSedan _______________ 132
, 140Luggage compartment lighting,
changing
_____________________ 230
MMain instrument panel
_____________ 82
Main/dipped beam
________________ 99
Maintenance schedule
___________ 278
Malfunction Indicator Lamp
_________ 83
Manual gear selection
____________ 168
Manual gearbox
_________________ 161
Manual tripping of car alarm
________ 58
Materials used in the car, reclamation
272
MAXI fuses
____________________ 234
Memory, driver’s seat
_____________ 21
Messages on SID, Convertible
______ 71
Milometer
_______________________ 90
Moonroof ______________________ 128
Mug holder ____________________ 133
NNew tires, buying
________________ 243
Number plate lighting, changing
____ 229
OORVR
________________________ 205
Opening handles
_________________ 48
Opening the soft top, Convertible
____ 64
Outside mirrors
_________________ 122
Owner assistance _______________ 280
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