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 26 of 83
IMMOBILISER
Coded key immobiliser system
82
PRO12827
DIAGRAM (vehicle with remote control)
82-15
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 28 of 83
INSTRUMENT PANEL
Dashboard
REMOVAL
Disconnect the battery.
Removing the steering wheel (with AIRBAG)
83
PRB5702
12973S
Remove the two airbag cushion bolts behind the
steering wheel.
Disconnect the connectors (airbag, horn).
Remove:
- the airbag cushion,
- the steering wheel bolt (renew it on refitting,
pre-bonded bolt, tightening torque: 4.5
daN.m),
- the steering wheel after setting the wheels
straight.
Removing the steering wheel (without AIRBAG)
Remove:
- the central cushion,
- the steering wheel bolt (renew it on refitting,
pre-bonded bolt, tightening torque: 4.5
daN.m),
- the steering wheel after setting the wheels
straight.
83-1
Page 29 of 83
INSTRUMENT PANEL
Dashboard
Remove:
- the half cowlings (three bolts),
83
- the instrument panel (four bolts),
- the instrument panel visor (six bolts) and the
dashboard visor (two bolts),
Disconnect the connectors.
12970-1R
12969-1R
12971R
12968S
83-2
Page 30 of 83
INSTRUMENT PANEL
Dashboard
83
Remove:
- the lower protector (four bolts),
- the lower section of the dashboard (four bolts,
two clips),
Special notes for vehicles with airbag
Before removing the assembly, the position of the
rotary switch under the steering wheel must be
noted:
- by ensuring that the wheels are straight on re-
moval so that the strip may be positioned in the
centre,
- by immobilising the rotary switch rotor using
adhesive tape.
Slacken the bolt then sharply tap the screwdriver
to release the cone.
Disconnect the connectors.
12967-1R
12966R
12971-1R
83-3
Page 31 of 83
INSTRUMENT PANEL
Dashboard
83
- the fuse boards (five bolts).
Unclip the diagnostic socket.
Remove:
- the heating control unit (two bolts),Remove:
- the steering column mountings (two bolts, two
nuts),
- the ashtray and its mounting (two bolts).
Disconnect the connectors.
12963R1
12965-1R 12963R
12965-1R1
83-4
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