check engine light SAAB 9-3 2002 Owner's Manual

189 Car care
Saab Trionic engine management
systemThe Saab Trionic engine management
system is a unique Saab development that
combines sequential multiport 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.
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 valve. The hydrocar-
bon/air mixture passes through the evap
canister purge valve and into the engine
where it is burned. "Refueling", see page
151.
When refueling, make sure you screw the
filler cap on and keep turning until it has
clicked at least 3 times. Otherwise, it is pos-
sible for the CHECK ENGINE light to illumi-
nate and a TIGHTEN FUEL FILLER CAP
message to appear on SID.
NOTEThe Trionic engine management system
continuously monitors the operation of
these systems and has on-board diag-
nostic capabilities (OBD II). If the 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 Saab
dealer as soon as possible.
ProCarManuals.com

207 Car care
MAXI fusesThe MAXI fuses are housed in the fuse box
under the hood. These fuses can be
checked in the same way as the other fuses.
The MAXI fuses are designed to protect the
car’s electrical system from being dam-
aged. Each MAXI fuse protects a number of
electrical circuits and functions and there-
fore has a higher rating (amperage) than the
standard fuses. No spare MAXI fuses are
supplied with the car.
DICE / TWICEDICE = Dashboard Integrated Central Elec-
tronics
TWICE = Theft-Warning Central Electronics
DICE and TWICE are electronic control
modules.
DICE controls, among other things:
 Front lights and interior lighting.
 Instrument illumination.
 Intermittent wiper operation.
 Electric heating of rear window and door
mirrors.
TWICE controls, among other things:
 Central locking.
 Car alarm (Anti-theft system).
 Engine immobilizer.
 Auto checking of lights.
 Electric heating of rear seat.
 Safety belt reminder.
 Electrically adjustable passenger seat.The DICE and TWICE control modules are
linked to a data bus, which is basically an
information carrier that allows information to
be exchanged between all the control mod-
ules and components connected to the bus.
If a fault occurs in any of these components,
diagnostic faults codes are set in the rele-
vant control module, which enhances fault
diagnosis at the Saab dealer.
The scan tool connector for fault diagnosis
is located under the instrument panel on the
driver’s side.
NOTEIf a MAXI fuse blows, it means that there
is a major fault in the electrical system.
Have the car checked without delay by an
authorized Saab dealer.
IB920
MAXI fuse for soft-top system
(Convertible)
ProCarManuals.com

210 Car careFuses and relays Fuse panel in engine bay
No. Amp Function
1––
2 15 Front fog lights
3 40 Radiator fan, low speed
4 10 Vacuum pump
5 15 A/C-compressor
610Left low beam
7 10 Right low beam
8 10 Left high beam
9 10 Right high beam
10 7.5 Headlight wipers
11 – –
12 – Extra lights
13 – –
14 10 Extra heater; water pump (Europe)
15 15 Extra heater (Europe)
MAXI 1 30 Radiator fan, high speed
MAXI 2 50 ABS
Item Amp Function
A Low beam
B High beam
C1 Extra heater (Europe)
C2 –
D Radiator fan, low speed
E Lamp check (filament monitor, front)
F1 – –
F2 – –
G1 Headlamp wipers
G2 Front fog lights
H–
I Radiator fan, high speed
J A/C-compressor
IB919
Fuses and relays in engine bay (left side)
ProCarManuals.com

227 Car care
Maintenance  The drive belt for the compressor should
be inspected under the regular service
program.
 Clean dirt and insects away from the con-
denser and radiator to prevent clogging.
When washing the car, use the hose to
spray the radiator and condenser (located
forward of the radiator) from both sides
(both from the front of the car and from
inside the engine bay). Do not use a pres-
sure washer.
Caution: Do not use the hose when the
engine is hot.
Other than in extremely cold weather, do not
cover the radiator, e.g. with screen netting,
as this will greatly diminish its cooling capac-
ity.
Note: The A/C system will only operate
when the outdoor temperature is above the
freezing point (0°C, 32°F). Switch on the
A/C system when the car stands in a warm
place.
Headlight aimingThe vehicle is equipped with vertical and
horizontal aim indicators. The aim has been
preset at the factory and should normally not
need further adjustments. This is true even
though your vertical and horizontal aim indi-
cators may not fall exactly on the "0" (zero)
marks on their scales.
If your headlight is damaged in a crash, the
headlight aim may be affected. If you believe
your headlights need to be re-aimed, we
recommend that you take it to your Saab
dealer for service. However, it is possible for
you to re-aim your headlights as described
in the following procedure.
To check the aim, the vehicle should be
properly prepared as follows: Place the vehicle on a level pad or surface
 The vehicle should be unladen and fuel
tank full, and one person or 160 lbs.
(75 kg) on the drivers seat
 The vehicle should not have any snow, ice
or mud attached to it
 Tires should be inflated to the prescribed
pressure
 Rock the vehicle to stabilize the suspen-
sion
WARNING
Before checking/adjusting the headlight
aiming, 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.
ProCarManuals.com

247 Index
IndexAA/C system, fault diagnosis
________ 226
A/C system, maintenance _________ 226
ACC
__________________________ 84
ACC, useful tips
_________________ 92
Adjustment, steering wheel
________ 131
Air conditioning (A/C), fault diagnosis
and maintenance
______________ 226
Airbag
_________________________ 28
Alarm __________________________ 41
Alarm functions
__________________ 44
Alarm signals
___________________ 44
Anti-corrosion treatment
__________ 222
Anti-theft system
_________________ 41
Ashtray
_______________________ 135
Audio System
___________________ 93
Automatic climate control (ACC)
_____ 84
Automatic transmission
___________ 156
BBattery
________________________ 195
Boost starting from donor battery
___ 181
Brake fluid, check
_______________ 194
Brake fluid, grade _______________ 241
Brake pad wear indicators
___ 164
, 194
Brakes
________________________ 164Braking
_______________________164
Bulb table _____________________205
CCD changer
____________________102
CD player
_____________________100
CHECK messages
_______________72
CHECKING
_____________________72
Cabin lighting __________________133
Calibration, ACC _________________90
Car alarm
______________________41
Care of safety belts
______________218
Central locking
__________________36
Change of address notification
_____232
Changing a wheel
_______________215
Changing bulbs
_________________200
Changing the engine oil
__________190
Changing the key battery __________39
Changing the wheels round _______212
Changing wiper blades
___________198
Chassis number
________________243
Child car seats
__________________19
Child safety
_____________________19
Child safety locks, rear doors
_______39
Child seats
_____________________19
Cigar lighter ____________________135
Cleaning the soft top, Convertible
____57
Climate-control system, manual
_____80
Compact spare wheel
____________214
Condensation water, A/C __________82Condensation water, ACC
_________ 85
Convertible
____________________ 47
Coolant
______________________ 192
Courtesy Headlight Feature
_______ 76
Cruise Control
_________________ 163
Cup holder
____________________ 134
DDICE/TWICE
__________________ 207
Date code, tires ________________ 214
Dim low beam
__________________ 75
Dimmer
_______________________ 78
Direction indicators
______________ 76
Direction-indicator stalk
___________ 76
Dome lighting
_________________ 133
Door mirrors
__________________ 137
Drive belt
_____________________ 197
Driving in deep water
____________ 179
Driving in hot weather ___________ 173
Driving technique
_______________ 170
Driving with a compact spare wheel

184
Driving with a load
______________ 178
Driving with a roof load
__________ 176
Driving with the trunk lid open
_____ 179
EEconomical motoring
____________ 170
Electrical system, technical data
___ 240
Electrical window
_______________ 130
ProCarManuals.com

248 IndexElectrically adjustable seats
_______ 127
Electrically heated front seats ______ 129
Electrically heated rear window _____ 83
Electronic starting interlock
_________ 37
Emergency opening, fuel filler door
_144
Emergency operation of the soft top,
Convertible
____________________ 52
Emergency operation of the sunroof
_132
Emission control systems
_________ 188
Engine bay
____________________ 187
Engine bay, cleaning
_____________ 220
Engine break-in period ______ 155
, 170
Engine number
_________________ 243
Engine oil, changing
_____________ 190
Engine oil, checking _____________ 190
Engine oil, grade
________________ 237
Engine oil, volume _______________ 238
Engine variants
_________________ 239
Engine, description ______________ 188
Engine, technical data ____________ 237
FFault codes, Audio System
________ 109
Flat spot
______________________ 218
Folding the soft top, Convertible
_____ 49
For long trips
___________________ 184
Front fog lights __________________ 77
Fuel filler door, emergency opening
_144
Fuel gauge
_____________________ 68
Fuel grade _____________________ 239Fueling
_______________________151
Fuel-tank capacity
_______________239
Fuse table
_____________________208
Fuses
________________________206
GGearbox number
________________243
Gearbox oil, checking
____________191
Gearbox oil, grade
_______________240
General particulars ______________234
General safety instructions, Convertible
48
Glove compartment
______________135
HHandbrake
_____________________168
Hazard warning lights
_____________76
Head restraint
___________________18
Headlight flasher _________________75
Hood
_________________________186
Horn signal
____________________131
IIf the car does not start
___________147
Ignition switch
__________________146
Immobilizer
_____________________37
Important considerations concerning
cars with catalytic converters
_____150Important considerations for driving

148
Indicator lights
__________________ 60
Instrument lighting
_______________ 78
Integrated booster seat
___________ 26
Interior equipment
______________ 123
Interior lighting
_________________ 133
Interior lighting, Convertible
________ 58
Interior rearview mirror
__________ 137
JJack
_________________________ 215
Jump starting
__________________ 181
KKey
__________________________ 36
Key, removing
_________________ 146
LLATCH (child safety)
_____________ 21
Labels and plates
______________ 243
Leather upholstery, care of
_______ 219
Load eyes
____________________ 142
Locks
_________________________ 36
Lowering rear seat
______________ 138
Luggage compartment
__________ 138
Luggage compartment, Convertible
_56
Luggage-compartment lighting
____ 142
ProCarManuals.com

249 Index
MMain beam
_____________________ 75
Main instrument panel
_____________ 60
Maintenance schedule ___________ 230
Manual climate-control system
______ 80
Manual raising of the soft top,
Convertible
____________________ 52
Manual transmission
_____________ 155
Manually opening the fuel filler door,
Convertible
____________________ 58
Manually opening the fuel filler door,
Coupé and 5-door
______________ 144
Maxi fuses
_____________________ 207
Memory, driver’s seat
____________ 128
Motoring abroad
________________ 184
NNight Panel
_____________________ 73
OORVR
________________________ 189
Odometer ______________________ 66
Oil specification
_________________ 237
OnStar
________________________ 111
Opening handle
__________________ 36
Owner assistance _______________ 231
PPaint touch-up
__________________221
Parcel shelf
____________________141
Park Brake Shift Lock
____________158
Parking brake
__________________168
Parking lights ____________________75
Plates and labels
________________243
Power steering fluid, check
________195
Power steering oil, grade
_________241
Pressure gauge
__________________67
Programmable driver’s seat
_______128
Programming, ACC
_______________90
RRadio
__________________________98
Raising the soft top, Convertible
_____51
Rear fog light
____________________77
Rear seat
______________________138
Rear seat, tipping
_______________138
Rearview mirrors ________________137
Rear-window wiper _______________79
Recirculation
____________________82
Recycling
______________________224
Refuelling _____________________151
Relay table ____________________209
Release handle, hood
____________186
Remote control
__________________36
Remote control battery, changing
____39
Removing the key
_______________146
Reporting safety defects
__________232Rev counter
____________________ 66
Reversing lights
_________________ 77
Roof rack
_____________________ 176
Rotating the tires
_______________ 212
Running-in
____________________ 155
SSAHR, head restraint
____________ 18
SID (Side Instrument Display)
______ 69
SRS (airbag)
___________________ 28
Saab Audio System
______________ 93
Saab Trionic engine management
system
______________________ 189
Safety belts ____________________ 12
Safety belts, care of
_____________ 218
Seat belts
_____________________ 12
Seat-belt pretensioners
___________ 13
Seats
________________________ 124
Service costs
__________________ 231
Service information
_____________ 232
Service intervals
_______________ 230
Service record retention
_________ 231
Side airbags
___________________ 30
Ski hatch
_____________________ 141
Snow tires ____________________ 242
Soft top storage, Convertible
_______ 56
Spare wheel
__________________ 143
Speedometer ___________________ 66
Starting the engine
_____________ 147
Steering-wheel adjustment
_______ 131
ProCarManuals.com