Page 21 of 83

REPLACING THE INJECTION COMPUTER OR
CODED SOLENOID VALVE
The injection computer and coded solenoid valve
are supplied uncoded. The engine immobiliser
code must be programmed in when they are fit-
ted.
It is sufficient to carry out the following opera-
tions:
- switch the ignition on, without starting the en-
gine, using the vehicle’s coded key for a few
seconds,
- switch the ignition off, the immobiliser will be
activated approximately 10 seconds afterwards
(red immobiliser warning light flashes).
NOTE : starting prevention can be checked
using the XR25:
- Ignition off, wait for the warning light to
flash (slow flashing)
Enter
ignition still off (bargraph
9 LH illuminates).
- Switch the ignition on, the red immobiliser
warning light should flash more quickly and
the vehicle should be impossible to start.
NOTE : For removal - refitting information, refer
to the corresponding section (13 or 17).
IMMOBILISER
Coded key immobiliser system
12.Check the immobiliser system operates cor-
rectly with both keys.
Switch the ignition on and check that the red
warning light illuminates for 3 seconds then
extinguishes and that the vehicle can be star-
ted.
NOTE : starting prevention can be checked
using the XR25:
- Ignition off, wait for the warning light to
flash (slow flashing)
Enter
- Switch the ignition on and check the vehi-
cle cannot be started and that the red war-
ning light flashes (rapid flashing).
13.The procedure is complete. After turning the
ignition off and on again (for more than 2 se-
conds), check the vehicle can be started and
erase all faults present in the decoder unit.
Vehicles fitted with a remote control
After replacing the kit carry out a resynchronisa-
tion operation (see simple resynchronisation pro-
cedure, section 88).
82
G04*
G04*
82-10
Page 23 of 83

NOTE : this fault may be shown by the XR25 (in
injection fault finding).
Connect the XR25 and enter the injection code.
The fault is shown by bargraph 2 RH side.
After entering
the message
on the XR25 display indicates a fault on the coded
line.
Diesel vehicle
If a system fault is detected by the decoder unit
when the engine is running, the red immobiliser
warning light will illuminate permanently until
the ignition is switched off.
IMPORTANT: In this case, after repair, the fault
memorised in the decoder unit must be erased by
entering command
on the XR25 to allow the engine immobiliser sys-
tem to operate again.
NOTE: this fault may be shown by the XR25 using
fault finding for the decoder unit (fiche no. 56).
Connect the XR25.
Set the ISO selector to S8.
Enter code
The fault may be shown by bargraph
6 RH or LH
side. Switch the ignition on, the red engine immobiliser
warning light will flash (rapid flashing).
Enter the vehicle security code (number corre-
sponding to the original key number).
After entering the security code, the red warning
light will flash again.
The XR25 display should show
(in injection fault finding). This indicates that the
injection computer has been decoded.
Switch the ignition off, remove the decoded
computer and return it to stock.
Refit the computer and decoder unit to the vehi-
cle.
NOTE : When testing the injection using the XR25
on a vehicle without an immobiliser, bargraph 2
RH side will illuminate (*22 = 2 def = computer
not coded). This is normal.
SYSTEM FAULT, ENGINE RUNNING
Petrol vehicle
If a fault in the system is noted by the injection
computer when the engine is running, the injec-
tion warning light on the instrument panel will
flash during deceleration and at idle speed (en-
gine speed less than 1500 rpm).
IMPORTANT: In this case, after repair, the fault
memorised in the injection computer and the de-
coder unit must be erased by entering command
on the XR25 or by disconnecting the battery (ap-
proximately 30 seconds) to allow the engine im-
mobiliser system to operate again.
IMMOBILISER
Coded key immobiliser system
82
*22
D56G0**
G0**
82-12
Page 24 of 83

4.Enter mode
on the XR25 then the security code number
and validate using
-If the code is correct
is displayed.
Bargraph 10 LH extinguishes.
The engine may be started.
The vehicle is protected once more :
• approximately 10 minutes after switching
the ignition off (automatically),
• after disconnecting the battery.
-If the code is incorrect
is displayed.
Bargraph 10 LH remains illuminated.
The engine may not be started.
The red immobiliser warning light and the in-
jection warning light (depending on version)
flash.
Switch the ignition off, then repeat the proce-
dure for entering the code.
IMPORTANT: you may make 3 attempts to enter
the code. If, after the third attempt, the code is in-
valid, you must wait for approximately 15 mi-
nutes before making another attempt.
When this period has expired, switch the ignition
off and on again and 3 more attempts may be
made.
NOTE : This procedure does not decode the injec-
tion computer or coded solenoid valve (depen-
ding on the type of engine)- it only authorises the
starting of the vehicle.
REMINDER : The ignition must be switched off
and on again between attempts to enter the
code.
IMMOBILISER
Coded key immobiliser system
82
G40*
*
PROCEDURE FOR ENTERING THE SECURITY CODE
With this immobiliser system, the procedure for
entering the security code is managed by the de-
coder unit.
The code is entered using the XR25 only.
The security code can only be entered if the en-
gine immobiliser system is active. The red immobi-
liser warning light must flash when the ignition is
switched on (rapid flashing).
After determining the security code number (re-
quest from the local assistance network, example
DELTA Assistance for France, NVSR for the UK by
fax only) , carry out the following operations:
1.Ignition off, the red engine immobiliser war-
ning light should flash (slow flashing).
2.Switch the ignition on, the injection warning
light (petrol vehicle) illuminates for approxi-
mately 3 seconds then extinguishes, while the
red immobiliser warning light should flash
more quickly.
3.Connect the XR25 to the vehicle and set the
ISO selector on S8.
Enter code
Bargraph 10 LH should be illuminated (fault
finding fiche n° 56).
D56
82-13
Page 25 of 83
IMMOBILISER
Coded key immobiliser system
82
13063R
Track Allocation
A1 Courtesy light timer*
A2 Antenna ring coded connection
A3 Diagnostic socket information (line K)
A4 Diagnostic socket information (line L)
A5 Red immobiliser warning light
A6 Coded information to injection computer
or coded solenoid valve
A7 + after ignition
A8 Earth
A9 + before ignition
B1 Infrared input*
B2 Door lock command*
B3 Not used
B4 Door switch*
B5 Door open command*
B6 Not used
B7 Not used
B8 Door open*
B9 Door lock*
DECODER UNIT CONNECTIONS (fullest version)
* Vehicle with remote control
82-14
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 32 of 83

INSTRUMENT PANEL
Dashboard
83
- the loud speaker grilles,
- the dashboard mountings.
Gently pull the dashboard.
Release the wiring retaining clips.
Disconnect:
- the headlight remote adjustment control
connector and hazard warning light connector,
- the remaining connectors (example : decoder
unit).
Remove the dashboard.REFITTING
When refitting, it is important to ensure the va-
rious wires are correctly routed and have suffi-
cient space so that the dashboard can be correctly
centred.
SPECIAL NOTES FOR REFITTING THE STEERING
WHEEL WITH AIRBAG
Ensure the rotary switch under the steering wheel
is correctly positioned.
If there is any doubt that this switch is correctly
centred follow the method for centring described
in section 88 "driver’s airbag".
Renew the steering wheel bolt each time it is re-
moved (pre-bonded bolt) for a steering wheel
with airbag.
Observe the correct tightening torque (4.5
daN.m).
IMPORTANT
Before reconnecting the driver’s airbag cushion,
check to see if the system is operating correctly as
follows:
•check the airbag warning light on the
instrument panel is illuminated when the
ignition is on,
•connect a dummy ignition module to the
driver’s airbag connector and check that the
warning light extinguishes,
•switch the ignition off, connect the airbag
cushion in place of the dummy ignition module
and secure the cushion to the steering wheel,
•switch the ignition on. Check the warning light
illuminates for three seconds when the ignition
is switched on then extinguishes and remains
extinguished.
If the warning light does not operate exactly as
described above, refer to the fault finding section
and test the system using the XRBAG (Elé. 1288)
(see section 88).
12964R
83-5
Page 34 of 83
INSTRUMENT PANEL
Instrument panel
83
DESCRIPTION
- electronic speedometer,
- display : mileometer/trip recorder and clock
- coolant temperature gauge,
- fuel gauge,
- warning light functions.
13054S
1 Trip mileometer reset button and clock reset (rotate).
NOTE :
• Under normal operating conditions, the oil level is only measured if the ignition has been switched off for
over one minute; otherwise the old oil level value is re-displayed.
If a fault is detected, however, an oil level measurement is made each time the ignition is switched on to
check if the fault is persisting.
• It is normal to find that the oil level is not always the same:
- parking on a slope,
- too short a wait after running the engine for a short moment (especially when the oil is cold), ...
83-7
Page 35 of 83
INSTRUMENT PANEL
Instrument panel
83
13066S
CONNECTION (fullest version)
Connector C (clear)
Track Allocation
1 Left hand indicator tell-tale
2 Dipped headlight tell-tale
3 Main beam headlight tell-tale
4 Catalytic converter fault warning light
5 Preheating warning light
6 Airbag warning light
7 Opening element warning light
8 + lighting
9 Coolant temperature gauge
10 Not used
Connector M (brown)
Track Allocation
1 Fuel gauge earth
2 Fuel gauge
3 + before ignition
4 Not used
5 Not used
6 Electronic fault warning light
7 OBD warning light (Not used)
8 AT warning light
9 Not used
10 + after ignition
83-8