LaserLine 921K Operating Instructions
LASERLINE model 921K immobiliser is a sophisticated
electronic device for vehicle protection, which ensures very
reliable protection with a simple operation procedure.The
system consists of a control unit, LED/Receptacle and two
code keys.
The 921K immobiliser deactivates the main electric circuits
of the vehicle (starter solenoid, petrol pump, injection or
ignition coil...) and simply operates by a coded key that
must be touched to a receptacle on the vehicle fascia before
starting the vehicle.
Activation of the system is automatically carried out
approximately 20 seconds after switching the ignition off.
Once activated, a dash fascia mounted LED will flash.
From now on, the immobiliser operates on two
specific points of the vehicles starting-ignition
or fuel supply systems, to prevent an
unauthorised attempt to start the vehicle.
To switch the immobiliser off, touch the coded key into the
receptacle and remove. You have approximately 20 seconds
to start the vehicle. If you fail to start the vehicle within this
20 seconds the system will re-activate automatically and it
will be necessary to re-touch the coded key to the receptacle
in order to start the vehicle. Note: always switch OFF the
immobiliser before switching ON the ignition key as
accidental activation of Self-Learning Procedure may
occur. If accidental activation of Self-Learning Procedure
does occur, wait for LED to flash at a rate of 1 flash per
2 seconds before disarming.
All the wires of the immobiliser are black and are
recognisable by a code printed on the end of them. When
the installation is completed, all the codes on the ends of
the wires are removed so that they are not identifiable and
the immobiliser cannot be neutralised.
There are thousands of millions of combinations
for the coded keys, so each key is unique and
cannot be replicated. When one of the 2 supplied
coded keys is lost, it is necessary to execute the
SELF-LEARNING PROCEDURE.
SELF-LEARNING PROCEDURE
OPERATING INSTRUCTIONS
1 ) Deactivate the immobiliser by inserting a
CODED KEY into the receptacle.
2) Turn ignition key to ON position.
3) Insert and hold one of the CODED KEYS into the
receptacle.
4) Maintaining the CODED KEY into the recep-
tacle, turn OFF the ignition key.
5) Remove the CODED KEY from the receptacle.
6) Check if the LED is steady ON, as indication of
the beginning of SELF-LEARNING PROCEDURE.
7 ) Within 10 secods of the LED remaining ON,
insert into the receptacle a new/spare CODED
KEY, followed by the original CODED KEY first
used to enter the SELF-LEARNING PROCEDURE.
Each KEY learning is signalled by a short pause
of the LED
8 ) When the 10 seconds from the last CODED KEY
as elapsed, the immobiliser exits from the SELF-
LEARNING PROCEDURE and displays the EMER-
GENCY CODE (PIN CODE) via flashing of the
LED.
9) Note the PIN CODE in the space provided at the
end of these instructions.
Verify that all CODED KEYS operate; otherwise,
repeat the above steps.
Note
After the above operations, any lost or stolen CODED KEYS become useless. Code memorisation can only
occur when the LED located in the receptacle is constantly on. No more than 10 seconds must elapse between
memorising each CODED KEY.
When 4 CODED KEY have been memorised, the immobiliser will automatically exit from the self-learning
procedure or 10 seconds after the last CODED KEY was memorised.
If a new CODED KEY has been memorised, it is necessary to memorise the original CODED KEYS if their
continued use is desired.
If only one CODED KEY is available no SELF-LEARNING PROCEDURE will take place and the procedure will
enter EMERGENCY CODE (PIN CODE) DISPLAY PROCEDURE.
To memorise only one CODED KEY follow the “USING THE EMERGENCY CODE (PIN CODE) TO DISARM THE
IMMOBILISER” procedure and memorise single CODE KEY.
EMERGENCY CODE (PIN CODE) DISPLAY PROCEDURE
To display the PIN CODE, activate the self-learning procedure and wait 10 seconds for the LED to switch
OFF. The immobiliser will use the LED for displaying 5 sequences of flashes that will correspond to 5
numbers. The following table shows an example of a PIN CODE and the corresponding LED flashes:
For the numbers
n° of corresponding flashes
5
)
n° 5 consecutive LED flashes
)
2 sec. Pause
6
)
n° 6 consecutive LED flashes
)
2 sec. Pause
0
)
n° 10 consecutive LED flashes
)
2 sec. Pause
5
)
n° 5 consecutive LED flashes
)
2 sec. Pause
4
)
n° 4 consecutive LED flashes
)
2 sec. Pause
On the above example, the PIN CODE to note at the end of these instructions would be 5 6 0 5 4.
It is imperative to note on a piece of paper this Emergency Pin Code, if it is different from the original pin
code displayed in the rear of these instructions. This pin code must then be stored in a secure location. Note:
If you intend to leave these instructions in the vehicle, the pin code in the back of these instructions should
be removed for safekeeping.
This emergency code is derived from the first CODED KEY memorised when you self-learn a new CODED
KEY. If you want to change the pin code from the original code, you may have to follow the self-learning
procedure more than once alternating the first CODED KEY until a new pin code is given.
HOW TO DISARM THE IMMOBILISER
USING THE “EMERGENCY CODE”
If the CODED KEYS do not work correctly or have been lost, to disarm the immobiliser you must insert the
“EMERGENCY CODE” (PIN CODE) as follows:
1) With the immobiliser ON, turn ON the ignition key.
2) The LED in the receptacle will now flash at a rate of 10 seconds ON, 2 seconds OFF, 10 seconds ON,
2 seconds OFF etc.
3) At any point when the LED is OFF, switch the ignition OFF. (If you miss the 2 second period whilst the
LED is OFF the LED will again come on for 10 seconds).
4) The LED will start to flash and the immobiliser is ready to accept the PIN CODE. If not interrupted, the
LED will flash 10 times. Turn ON the ignition key for 1 second after the LED as displayed the flashes
corresponding to each digit of your PIN CODE, read PIN CODE at the end of these instructions from
left to right. For a better understanding, see the example.
If the inserted PIN CODE is correct, the immobiliser will disarm itself and automatically enter the “SELF-
LEARNING PROCEDURE”, signaling this condition by LED ON for 10”. Follow SELF-LEARNING PROCE-
DURE from step 6. If the inserted PIN CODE is wrong, the immobiliser will remain ON.