2001 SAAB 9-5 check engine light

42 SecurityActivating the car alarm The car alarm cannot be activated if the
driver’s door is open or if the ignition switch
is in ON position.
If, on the other hand, one of the other doors
or the trunk or hood is open or opened and
not closed again during the 10-seconds
delay period, it will be excluded from the
alarm function.
If it is then closed, a new delay period of ten
seconds will start, and the door (or trunk or
hood) will once again be secured by the
alarm system.
As usual, the LED will be on continuously
during the new delay period and will start to
flash once every other second after the
10-seconds period has elapsed.
Window-glass sensorThe car-alarm system incorporates a
sensor that monitors the window glass for
the sound of breakage. The sensor is fitted
inside the rear dome light.
To avoid false alarms, such as the alarm
being triggered by noise from passers by
when the windows have been left open, or
when children or petsare left inside the car,
the sensor can be temporarily disabled.
To disable the sensor
To disable the sensor, first ensure that the
ignition has been switched off and key
removed from the switch. Then, press and
hold the NIGHT PANEL button until ”DOOR
ALARM ONLY” appears on the SID and a
chime sounds. The car alarm must now be
activated within three minutes, or the glass
sensor will become active again.
The glass sensor will be enabled again
automatically when the car is next unlocked.
The sensor can also be enabled again by
repeating the procedure for disabling it.
When the sensor has been enabled, ”FULL
THEFT ALARM” will appear on the SID.
If a fault is detected in the glass sensor,
”SERVICE THEFT ALARM” will appear on
the SID.
Electronic starting interlock
(immobilizer) When the key is inserted in the ignition, a
signal is sent to the receiver. If the signal is
verified, the engine can be started.
Each time the key is removed from the igni-
tion, the electronic immobilizer is activated.
This means that the car cannot be started
without the correct key inserted in the igni-
tion and the immobilizer thus deactivated.
If a fault is detected (e.g. in the transmitter)
”KEY NOT ACCEPTED” will appear on the
SID.
In this case, you can still start the car if you
turn the ignition key to ON and press one of
the buttons on the key (providing that the
receiver gets the right signal from the key).
Take the car to an authorized Saab dealer to
have the system checked.
The LED double-flashes when the car is
immobilized.
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48 Instruments and controls
Indicator and warning
lights A number of indicator and warning lights will
come on when the ignition is switched on
prior to starting. Under normal conditions,
these should go out a few seconds after the
engine has started (see page 54).
Warning, oil pressure
(engine oil)
This light will come on together with if
the engine oil pressure is dangerously low.
If the light flashes or comes on while you are
driving, stop the car, switch off the engine
and check the engine oil level (see page
193). NOTEUnder no circumstances must the car be
driven when the warning light is on. Low
oil pressure can result in serious engine
damage.
Main instrument panel 1 Tachometer
2 Indicator and warning lights
3 Speedometer
4 Indicator and warning lights
5 Pressure gauge6 Fuel gauge
7 Engine temperature gauge
8 Trip meter reset button
9 Odometer and trip meter
2030405060 70
80
90
100
11 0
120
130
140
150
240220200180 160 140 120 100
80
60
40
20
10
9
4
5
3
2
7
8
6
1
IB1690
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49 Instruments and controls
Warning, charging
This light will come on together with if
the battery is discharging. If it comes on
while you are driving, stop the car as soon
as possible and switch off the engine.
Check the alternator drive belt (see page
202). If the belt has broken, the engine may
overheat (cooling system will not function
properly), the battery will not be charged,
the A/C compressor will not run and power
assistance for the steering will be lost.
Brake warning light
This light will come on together with if
there is insufficient brake fluid in the reser-
voir (see pages 198 / 198).
If the ABS warning light is on at the same
time, the ABS system may be inoperative
because of a fault (see ”Anti-lock brake
warning”, page 50).
Parking brake warning
light
This light will show when the parking brake
is on (see page 185).
If the car is driven with the parking brake still
on, will also come on and a chime will
sound.
The parking brake is mechanical and oper-
ates on the rear wheels.
WARNING
Never drive the car when these warning
lights are on. Danger of brake failure!
Have the brake system checked by an
authorized Saab dealer.
WARNING
 Always apply the parking brake when
parking, see page 185.
 Always apply the parking brake before
removing the ignition key.
 Do not apply the parking brake while
the car is moving.
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50 Instruments and controls

Anti-lock brake warning
This light will come on if a fault has occurred
in the ABS system.
On certain variants and as well
as can light up to indicate a fault in the
electronic brake force distribution system
(distribution of the brake pressure between
the front and rear wheels).
Conventional braking without the ABS func-
tion will still be available.
For safety reasons, stop the car and check
the level of the brake fluid (see page 198).If the level is normal, depress the brake
pedal firmly two or three times. Now check
the level again. If the level is still normal, you
may drive the car, with considerable cau-
tion, to the nearest authorized Saab dealer
to have the brake system checked.

Airbag warning light
This light together with will come on if
a potentially serious fault has occurred in
the airbag system.
The light will come on for about three sec-
onds when the ignition switch is turned to
the Start or Drive position. It should go out
after the engine has started.
WARNING
 If the ABS is inoperative, there is a
danger of the rear wheels locking up
on hard braking.
 If the level of brake fluid in the reser-
voir is below the MIN mark, the car
should be towed to an authorized
Saab dealer.
WARNING
 If the airbag readiness light stays on
after you start your vehicle, it means
the airbag system may not be working
properly. One or more of the following
conditions may occur:
- Non-deployment of the airbags in the
event of a crash.
- Deployment of the airbags without a
crash.
- Deployment of the airbags in
crashes less severe than intended.
 To help avoid injury to yourself or
others, have your vehicle serviced
right away if the airbag readiness light
stays on after you start your vehicle.
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51 Instruments and controls
CHECK message indicator
This light indicates that there is a message
in the SID. A chime will also sound
(see page 61).
Central warning light
This light will come on and a chime will
sound if a fault has been detected in any
system that is critical to safety. Any of the
following can activate the central warning
light and alarm:
 Airbag system.
 Low oil pressure in engine.
 Parking brake is on (when car is moving).
 Brake fluid level low.
 Fault detected in ABS system.
 Electronic brake force distribution (distri-
bution of brake pressure between front
and rear wheels).
 Engine overheating.
 Alternator not charging properly.
Engine malfunction
(CHECK ENGINE)
This light indicates a malfunction in the
fuel-injection or ignition system. The car
may still be driven with care and with some-
what diminished performance (see page
151).
Indicator, fuel
This light comes on when there is less than
about 2.5 gallons (10 liters) of fuel left in the
tank.
WARNING
An illuminated ”Engine malfunction
(CHECK ENGINE)” indicator light indi-
cates a serious engine-related problem.
While your car may be able to be driven
with the ”Engine malfunction (CHECK
ENGINE)” indicator light illuminated
(Limp-home mode), you are advised to
have your car serviced at an authorized
Saab dealer as soon as possible.
Continued driving without this problem
being corrected might cause serious
further damage to your car and create
unsafe driving conditions. The operator
should be prepared to take action if such
unsafe conditions arise (e.g., apply the
brakes, disengage transmission, turn off
the ignition etc.).
NOTEThe car should be checked immediately
at an authorized Saab dealer to prevent
more serious faults from arising.NOTEIf the car runs out of fuel, air can be drawn
in with the fuel, which, in turn, can cause
the catalytic converter to be damaged by
overheating.
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53 Instruments and controls
Automatic transmission,
fault indicator
On a car with an automatic transmission,
this warning symbol is illuminated if a fault
has been detected in the transmission.
Switch the ignition off and on again to check
if the fault persists.
Even if the fault persists, it is still possible in
most cases to drive the car (see page 161).
Have the automatic transmission checked
by an authorized Saab dealer as soon as
possible.
Traction-control-system:
OFF
The indicator light goes on when the Trac-
tion Control System is switched off with the
TCS OFF button.
IMPORTANT: the Traction Control System
is automatically engaged every time the
engine is started (see page 169).
The indicator light also goes on when there
is a fault in the Traction Control System. In
this case the light cannot be turned off by
means of the TCS button. If a fault is indi-
cated, have the system checked by an
authorized Saab dealer.
See also ”Traction Control System”, on
page 169.
TCS modulation in
progress
The TCS indicator light is located in the
lower half of the tachometer and will be illu-
minated when TCS regulation is occurring,
i.e. when there is insufficient traction
between the tires and the road surface to
provide the grip required for the accelera-
tion called for. The driver can also sense
that the engine is not responding normally to
the accelerator.
Operation of the TCS indicates reduced
traction between the tires and the road, and
that extra care should be taken by the driver.
In normal driving, the TCS will improve both
ride comfort and safety, but must not be
regarded as a system to enable the driver to
drive at or maintain a higher rate of speed.
The same precautions for safe cornering
and driving on slippery roads must still be
applied (see page 169).
NOTEIf the control module has actuated the
Limp-home function for the automatic
transmission, the car will remain in 4th
gear when D is selected, making it very
sluggish. To overcome this, select posi-
tion 2 to prevent unnecessary wear on the
transmission. The transmission then
starts in 3rd gear. When the car is moving
you can select position D or 3.
When the indicator light is on, the car
must not be driven with a trailer attached.
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54 Instruments and controlsAutochecking of lights,
main instrument panel The above warning and indicator lights
should come on when the ignition is
switched on prior to starting. They should go
out after about 3 seconds.
The following lights light up until the engine
is started, presuming that no fault exists:
 Central warning light .
 Oil pressure warning light .
 Warning, charging .
InstrumentsTachometerThe tachometer indicates the engine speed
in thousands of revolutions per minute. The
needle may be allowed to enter the broken
red zone on the dial only for an instant.
A safety cut-out function (in the fuel system)
prevents the engine speed from exceeding
approximately 6,200 rpm.
Odometer and trip meter The odometer records the distance traveled
in miles on U.S. vehicles and on Canadian
vehicles the distance indicated is in kilome-
tres, and the trip meter in miles and tenths
(kilometres and tenths of kilometres on
Canadian vehicles). Reset button The reset button has two functions, deter-
mined by whether the ignition is ON or OFF.
 When the ignition is ON, pressing the
button will reset the trip meter.
 When the ignition is OFF, pressing the
button will bring up the display for
20 seconds to allow the odometer and
trip-meter readings to be viewed.
IB1279
IB340
IB341
1 Cars with automatic transmission
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55 Instruments and controls
Speedometer (U.S. speedometer
shown)The speedometer receives signals from the
wheel sensors in the ABS system.
If the NIGHT PANEL mode has been
selected, the scale will be illuminated up to
87 mph (140 km/h). The remainder of the
scale will be illuminated if the speed of the
car exceeds 84 mph (135 km/h).
Fuel gauge Fuel-tank capacity, 18.5 US gal. (70 liters).
The fuel gauge shows the amount of fuel left
in the tank. When this is down to about
2.5 gal. (10 liters), a warning light on the
main instrument panel will come on (see
page 51).
Use the Saab Information display (SID) to
check the approximate distance that can be
traveled on the remaining fuel
(see page 57).
Temperature gauge The temperature gauge shows the temper-
ature of the coolant. The needle should be
in the middle of the scale when the engine
is at normal operating temperature.
If the needle approaches the red zone,
which can occur in very hot weather or when
the engine is under a heavy load, drive in the
highest gear possible, keep the engine revs
low and avoid shifting down.
If the needle enters the red zone, the
warning light will come on and an alarm
chime will sound.
IB606
IB345
IB343
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