Page 27 of 83

IMMOBILISER
Coded key immobiliser system
82
KEY
104 Ignition switch
120 Injection computer
123 Door locking button
138 Rear right door locking motor
140 Driver’s door locking motor
141 Passenger’s door locking motor
142 Luggage compartment door locking motor
154 Luggage compartment door switch
178 Rear right door switch
180 Driver’s door switch
181 Passenger’s door switch
213 Courtesy light
225 Diagnostic socket
247 Injection warning light and red immobiliser
warning light on instrument panel
249 Remote control receiver
260 Passenger compartment fuse box
503 Decoder unit
711 Coded solenoid valveFAULT FINDING
If this immobiliser system is faulty, fault finding
may be carried out using the XR25.
CONNECTION
Use cassette no° 17 and the corresponding fault
finding fiche no° 56.
92656S2
Connect the XR25 to the diagnostic socket.
Position the ISO selector on S8.
Enter the code for the immobiliser system D56.
NOTE : For information on the interpretation of
the bargraphs, the fault charts, checking confor-
mity and additional tests, refer to the fault fin-
ding section.
82-16
Page 46 of 83
CONTROLS - SIGNALS
Ignition switch
REMOVAL - REFITTING
Disconnect the battery.
Set the wheels straight.
Remove:
- the half cowlings,
- the radio or glovebox (depending on equip-
ment),
- the immobiliser antenna ring or plastic sur-
round from the ignition switch (depending on
equipment).
Disconnect the ignition switch connectors (F).
84
Remove bolt (G) from the ignition switch.
Position the ignition key in position 3 and tilt re-
taining lugs (H) while releasing the switch.
DI8404
13068R
84-6
Page 58 of 83

WIRING
Remote control for door locking
88
.GENERAL
These vehicles are equipped with an infrared or
radio frequency remote control with rolling code,
which prevents the code from being copied.
When a transmitter is replaced it will therefore be
necessary to resynchronise it so that the transmit-
ters are returned to phase with the decoder unit.
This remote control is only used for locking and
unlocking the opening elements (it has no effect
on the immobiliser).
IMPORTANT: this system cannot operate with
three remote controls (the decoder unit can only
manage two different rolling codes).
THE TRANSMITTER (PLIP)
Replacing or adding a remote control with immo-
biliser function without replacing the decoder
unit.
Order a spare key head using the number in the
head of one of the old keys or the label normally
attached to the keys when the vehicle is delivered
(eight alphanumeric characters).
If a key is being added or has been lost, remember
to order the insert with the key number.
Carry out the special resynchronisation procedure
using the XR25.
This procedure resets the remote control into se-
quence with the decoder unit (rolling code) and
should only be used if the decoder unit is not
being replaced (with immobiliser only).
1.Ignition off, connect the XR25 (ISO selector on
S8, code D56).
For vehicles fitted with an infra-red remote
control, enter command mode G04* (forced
protection mode) then switch the ignition on
again and enter the vehicle’s security code
(see procedure in section 82).
For vehicles fitted with a radio frequency re-
mote control, go to point 2.
2.Switch the ignition off and enter command
mode G32*.
From this moment, the operator has 10 se-
conds to carry out the next operation.
NOTE: The 10 seconds are shown by the illu-
mination of the red immobiliser warning light
and bargraph 17 LH on the XR25
(code D56,
fiche n° 56).
3.Press the remote control twice (the doors lock
and unlock and the red warning light extin-
guishes).
NOTE :
- When replacing a key head, resynchronisa-
tion of the second remote control (if fitted)
is not always necessary.
Check that the second control operates,
otherwise resynchronise it.
- If both remote controls (if fitted) are desyn-
chronised, two resynchronisation proce-
dures will have to be carried out (one for
each remote control).
IMPORTANT: To ensure that the infrared code
is correctly transmitted it is essential to direct
the transmitter correctly towards the receiver.
If the procedure fails it will be necessary to
restart from the beginning (infrared remote
control only).
4.The procedure is complete - check that the
doors lock correctly.
88-3
Page 59 of 83

WIRING
Remote control for door locking
88
Replacing or adding a remote control without im-
mobiliser function without replacing the decoder
unit.
If the vehicle does not have an immobiliser, the re-
mote control does not have a special number. A
key head without a number may therefore be or-
dered.
If a key is being added or has been lost, remember
to order the insert with the key number.
Carry out the special resynchronisation procedure
using the XR25.
This procedure resets the remote control into se-
quence with the decoder unit (rolling code) and
should only be used if the decoder unit is not
being replaced (with immobiliser only).
1.Ignition off, connect the XR25 (ISO selector on
S8, code D56).
2.Enter command mode G32* (the doors lock
and unlock).
From this moment, the operator has 10 se-
conds to carry out the next operation.
NOTE: The 10 seconds are shown by the illu-
mination of bargraph 17 LH on the XR25
(code
D56,
fiche n° 56).
3.Press the remote control twice (the doors lock
and unlock).
NOTE :
- When replacing a key head, resynchronisa-
tion of the second remote control (if fitted)
is not always necessary.
Check that the second control operates,
otherwise resynchronise it.
- If both remote controls (if fitted) are desyn-
chronised, two resynchronisation proce-
dures will have to be carried out (one for
each remote control).
IMPORTANT: To ensure that the infrared code
is correctly transmitted it is essential to direct
the transmitter correctly towards the receiver.
If the procedure fails it will be necessary to
restart from the beginning (infrared remote
control only).
4.The procedure is complete - check that the
doors lock correctly.
Simple resynchronisation procedure
This procedure allows the remote controls to be
reset with the decoder unit (rolling code).
This procedure is used:
- when the remote control code no longer lies
within the reception range of the decoder unit
(over 1,000 consecutive presses on the remote
control, away from the vehicle).
- when replacing a decoder unit alone (new de-
coder unit),
- when replacing a remote control if the decoder
unit is new (replacing a kit).
REMINDER: when replacing or adding a remote
control with immobiliser function without repla-
cing the decoder unit, refer to "Replacing or ad-
ding a remote control with or without immobili-
ser function without replacing the decoder unit"
(specific resynchronisation procedure).
88-4
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