2006 Alfa Romeo 156 sensor

GETTING TO KNOW YOUR CAR8
To insert the metallic insert in the key grip,
press the button (E-fig. 3) to release the
insert and turn it in the direction of the ar-
row until it clicks.
To open/close the doors by remote con-
trol, press button (B). On cars fitted with
electronic alarm system, pressing button (B)
also turns the electronic alarm.
WARNINGCertain radio devices outside
the car (e.g. mobile phones, HAM radio sys-
tems) could disturb the remote control fre-
quency. In this case the remote control could
malfunction.
OPENING THE BOOTThe boot can be opened by remote control
from outside pressing button (C-fig. 3),
also when the electronic alarm (where fit-
ted) is on.
In this case the alarm system switches off
the boot volumetric protection and control
sensor, the system gives two “beeps” (with
the exceptions of versions for certain mar-
kets) and the direction indicators light up for
about three seconds.
Closing the boot again, the control func-
tions are restored, the system gives two
“beeps” (with the exceptions of versions for
certain markets) and the direction indicators
light up for about three seconds. The metallic insert (A) of the key oper-
ates:
– the ignition switch
– the driver's door lock and, optional for
versions/markets where applicable, the pas-
senger's door lock
– passenger’s Air bag deactivation.
To move the metallic insert out of the key
grip, press button (E).
When button (E) is
pressed, take the utmost
care to prevent the metal insert
from causing injury or damage
when it comes out. Button (E) must
only be pressed when the key is
away from the body, in particular
the eyes, and from objects that
could be spoilt (e.g. clothes). Never
leave the key unattended to pre-
vent anyone, especially children,
from holding it and pressing button
(E) inadvertently.
WARNING

GETTING TO KNOW YOUR CAR11
To change the battery (fig. 7):
– move the metal insert (A) to the un-
locking position;
– turn the pin (B), taking the reference
mark (dot) of the cut to the UNLOCKpo-
sition (2);
– working on the notch (C) remove the
battery holder (D);
– change the battery (E) putting it in the
position shown on the holder;
– insert the holder back in the key and
lock it, turning the reference mark of the pin
(B) to the LOCKposition (1).
ELECTRONIC ALARM(optional for versions/markets
where applicable)DESCRIPTIONThe system comprises: transmitter, re-
ceiver, control unit with siren and volumet-
ric sensors and anti-lift sensor. The electronic
alarm is controlled by a receiver inside the
car and it is turned on and off through the
remote control incorporated in the key which
sends the crypted and variable code. The
electronic alarm monitors: unlawful opening
of the doors, bonnet and boot (perimetral
protection), operation of the ignition key,
battery and emergency key cable cutting,
the presence of moving bodies (volumetric
protection), any abnormal raising/sloping
of the car (for versions/markets where ap-
plicable) and operates the central door lock-
ing system. It also makes it possible to cut
off the volumetric protection.
WARNINGThe engine inhibitor function
is guaranteed by the Alfa Romeo CODE sys-
tem which is activated automatically when
the ignition key is removed.
fig. 7
A0B0047m
REMOTE CONTROL
(fig. 8)
The remote control is built into the key and
it is fitted with a button for activating the
alarm (B-fig.8)
fig. 8
A0B9000m

GETTING TO KNOW YOUR CAR13
Self-diagnosis and monitoring
of doors and bonnet/boot
If, after the alarm has been activated, a
second acoustic signal is heard, check that
all the doors and bonnet/boot are closed
properly and engage the system once again.
On the other if a door or bonnet/boot lid
is not correctly closed it will not be controlled
by the system.
If the control signal is repeated when the
doors and bonnet/boot are closed properly
this means that the self-diagnosis function
has detected a system operating fault, in
which case it is necessary to contact Alfa
Romeo Authorized Services.
DEACTIVATING THE ALARMTo deactivate the alarm, press the button
on the key with remote control. The system
performs the following (with the exception
of some markets):
– the direction indicators turn on twice
briefly
– two beeps are sounded briefly by the
siren
– the doors are released.
WARNINGIf the led (A-fig. 9) in the
car stays on when the system has been de-
activated, (maximum of 2 minutes or until
the ignition key is moved to MAR) the fol-
lowing should be borne in mind:
– if the led stays on permanently, it means
that the remote control batteries are flat and
need replacing;– if the led continues to flash, but at dif-
ferent intervals than normal, it means that
attempts to steal the car have been made,
counting the number of flashes it is also pos-
sible to identify the type of attempt:
1 flash: right front door
2 flashes: left front door
3 flashes: right rear door
4 flashes: left rear door
5 flashes: volumetric sensors
6 flashes: bonnet
7 flashes: boot
8 flashes: tampering with car starting
cables
9 flashes: tampering with battery or
cutting emergency key ca-
bles
10 flashes: at least three causes of
alarm.

GETTING TO KNOW YOUR CAR42
FRONT AND SIDE
AIR BAGS The car is fitted with front Air bags for the
driver (fig. 63), for the passenger
(fig. 64), side bags (fig. 65) and win-
dow bags (fig. 66).
FRONT AIR BAGSDescription and operation
The front air bag (driver’s and passenger’s)
is a safety device that comes into action in
the event of a head-on collision.It is formed of an instantly-inflating cush-
ion contained in a special recess:
– in the centre of the steering wheel for
the driver;
– in the dashboard and with a larger-sized
cushion for the passenger.
The front Air bag (driver’s and passenger’s)
is a device designed to protect the occupants
in the event of head-on collision of medium-
high severity by the interposition of the cush-
ion between the occupant and the steering
wheel or dashboard.
In the event of a crash, the electronic con-
trol unit processes the signals leading from
a deceleration sensor and when necessary,
triggers inflation of the cushion.
The cushion inflates instantly as a protec-
tive barrier between the occupants’ bodies
and the structures which could cause injury.
The cushion deflates immediately after-
wards.
The front air bag (driver’s and passenger’s)
does not replace but is complementary to
the use of belts, which should always be
worn, as specified by law in Europe and
most non-European countries.
fig. 63
A0B0568m
fig. 64
A0B0582m
fig. 65
A0B0278m
fig. 66
A0B0277m

GETTING TO KNOW YOUR CAR44
MANUAL DEACTIVATION OF
PASSENGER’S FRONT AIR BAGShould it be absolutely necessary to carry
a child on the front seat, the passenger’s
front air bag can be deactivated.
Deactivation/reactivation takes place with
ignition key at STOPand operating it in the
special key switch on the right-hand side of
the dashboard (fig. 67). Access to the
switch is only possible with the door open.The key switch (fig. 67) has two posi-
tions:
1) Passenger’s front Air bag active: (ON
position
P) warning light on check panel
off; it is absolutely prohibited to carry chil-
dren on the front seat.
2) Passenger’s front Air bag deactivated:
(OFFposition
F
) warning light
F
on
check panel on; it is possible to carry chil-
dren protected by special restraint systems
on the front seat.
The warning light
F
on the check panel
glows steadily until the passenger’s Air bag
is reactivated.
Deactivation of the front passenger’s air
bag does not prevent operation of the side
Air bags.
With the door open the key can be inserted
and removed in both positions.
SIDE AIR BAGS
(SIDE BAG - WINDOW BAG)The side bag and window bag have the
task of increasing protection of the occu-
pants in the event of a side crash of medium-
high severity.
They are formed of an instantaneously-in-
flating cushion:
– the side bag is housed in the back rest
of the front seats; with this solution it is al-
ways possible to have the cushion in the op-
timum position in relation to the passenger,
regardless of the adjustment of the seat;
– the window bags, which are “curtain”
cushions, are housed in the side roof lining
covered by a special trim, which makes it
possible to extend the cushion downwards.
This solution, designed to protect the head,
makes it possible to offer the highest degree
of protection to the front and rear occupants
in the event of side crash, thanks to the wide
cushion inflation surface.
In the event of a side crash, an electronic
control unit processes the signals leading
from a deceleration sensor and activates,
when necessary, inflation of the bags.
fig. 67
A0B0583m
Use the switch only with
the engine off and the ig-
nition key removed.
WARNING

GETTING TO KNOW YOUR CAR51
“INTELLIGENT WASHING” FUNCTION
Pulling the lever towards the steering
wheel (fig. 76) (unstable position) oper-
ates the windscreen washer.
Keeping the lever pulled, with only one
movement it is possible to operate the
washer jet and the wiper at the same time;
indeed, the latter comes into action auto-
matically if the lever is pulled for more than
half a second.
The wiper stops working a few strokes af-
ter releasing the lever; a further “cleaning
stroke” after a few seconds completes the
wiping operation.Rain sensor
(for versions/markets where
applicable) (fig. 77)
The rain sensor (A), fitted only on cer-
tain versions, is an electronic device com-
bine with the windscreen wiper which has
the purpose of automatically adjusting the
number of wipes during intermittent opera-
tion, to intensity of the rain.
All the other functions controlled by the
right-hand lever remain unchanged.
The rain sensor is activated automatically
moving the right-hand lever to position (B-
fig. 74) and it has a range of adjustment
that gradually varies between wiper sta-
tionary (no wiping) when the windscreen is
dry, to wiper at first continuous speed (con-
tinuous, slow) with heavy rain.Turn ring (F-fig. 75) to set the rain sen-
sor sensitivity level:
■■
= low sensitivity
■■■
= medium ensitivity
■■■■
= high sensitivity.
Operating the windscreen washer with the
rain sensor activated (lever at position B)
the normal washing cycle is performed at
the end of which the rain sensor resumes its
normal automatic function.
Turning the ignition key to STOPthe rain
sensor is deactivated and the next time the
engine is started (MAR position) it will not
be reactivated even if the lever has remained
in position (B). In this case to activate the
rain sensor, simply move the lever to (A)
or (C) and then back to (B).
fig. 76
A0B0374m
fig. 77
A0B0012m

GETTING TO KNOW YOUR CAR52
When the rain sensor is reactivated, the
wiper performs at least one stroke, even if
the windscreen is dry, to indicate that reac-
tivation has occurred.
WARNINGIn case of failure of the right-
hand stroke or rain sensor, windscreen wiper
operation with the right-hand lever at (B)
shall take place in intermittent mode.
The rain sensor is located behind the inner
rear-view mirror in contact with the wind-
screen and inside the area cleaned by the
wiper and it controls an electronic control
unit which in turns controls the wiper motor.At each start, the rain sensor automatically
stabilises at a temperature of about 40°C
to eliminate any condensation from the con-
trol surface and prevent the formation of ice.
The rain sensor is able to detect and au-
tomatically adapt to the presence of the fol-
lowing particular conditions which require
different sensitivity:
– impurities on the control surface (salt,
dirt, etc.);
– streaks of water caused by worn wiper
blades;
– difference between day and night (the
human eye is more disturbed during the
night by the wet glass surface).Headlight washers (fig. 78)
(optional for versions/markets
where applicable)
These are operated when the sidelights
are on and the windscreen washer is
switched on.
fig. 78
A0B0581m

GETTING TO KNOW YOUR CAR93
Warningl ight Message
on displayx
LOW BRAKE FLUID AND/OR HANDBRAKE ONWhen the ignition key is turned to MAR, the warning light comes on but must go out after a
few seconds.
The warning light comes on (together with the message + symbol shown on the display) when
the level of the brake fluid inside the tank falls below the minimum, due to a possible leak in the
circuit and when the handbrake is switch on with the car moving.
d
BRAKE PAD WEARThe warning light on the dial comes on (together with the message + symbol shown on the dis-
play) when the front brake pads are worn; in this case, have them replaced as soon as possible.
WARNINGAs the car is fitted with wear sensors for the front brake pads, when replacing them,
also check the rear brake pads.
If the warning light
x
comes on when travelling (together with the
message on the display), check that the handbrake is not engaged. If
the warning light stays on with the handbrake off (together with the message
on the display), stop immediately and contact Alfa Romeo Authorized Services.
WARNING