Page 36 of 83
INSTRUMENT PANEL
Instrument panel
83
Connector N (black)
Track Allocation
1 Not used
2 Brake pad wear warning light
3 ABS warning light
4Handbrake / brake info warning light
(NIVOCODE)
5 Immobiliser warning light
6 Not used
7 Not used
8 Speed signal
9 Oil level sensor
10 Oil level sensor earth
Connector G (grey)
Track Allocation
1 Earth
2 Not used
3 Not used
4 Low fuel level warning light
5 Coolant temperature warning light
6 Oil pressure warning light
7 Battery charge warning light
8 Rear fog light tell-tale
9 Front fog lights tell-tale
10 Right hand indicator tell-tale
83-9
Page 38 of 83

INSTRUMENT PANEL
Fuel level sensor
83
97163R7
Tighten the mounting nut on the fuel and sender
unit assembly to a torque of 3.5 daN.m using the
tool Mot. 1264-01, holding the sender unit to pre-
vent it from rotating.
Make sure that the connector is firmly locked and
that the quick-release unions are securely clipped
on (with 2 O-ring seals)
Reconnect the battery.
CONNECTION
Disconnect the connector and the pipes on the
sender unit side.
Remove the mounting nut (5) of the pump and
sender unit using tool Mot. 1264-01.
Slacken the nut, remove the tool, unscrew the nut
by hand and remove it.
Remove the pump and sender unit assembly.
NOTE : If several hours may pass between
removing and refitting the pump and sender unit
assembly, refit the nut to the fuel tank to prevent
it from distorting.
REFITTING OF THE PUMP AND SENDER UNIT
ASSEMBLY
Special notes
Check that the seal is in good condition and re-
place it if necessary.
Fit the seal on the fuel tank first before fitting the
assembly.
Refit the pump and sender unit assembly in the
fuel tank by aligning it so that the indexing arrow
(F) is positioned in line with the longitudinal axis
of the vehicle, pointing towards the rear of the
vehicle.
DI8307
Track Allocation
A1 Earth
A2 Low fuel level warning light
B1 Sender unit information to instrument
panel
B2 Not used
C1 + pump
C2 - pump
Checking
IndicationValue between
terminals
A1 and B1 (in Ω)
4/4 7 maximum
3/4 54.5 ± 7
1/2 98 ± 10
1/4 155 ± 16
Low fuel 300 ± 20
97162S
83-11
Page 39 of 83

INSTRUMENT PANEL
Oil level sensor
83
98898R1
OPERATION
The sensor consists of a wire with a high
coefficient of resistance. When a current passes
through the wire it does not have the same
thermal conductivity when it is immersed in a
liquid as when it is in the open air.
After a fixed time a voltage difference is obtained
at the sensor terminals depending on the depth of
immersion of the wire. This voltage difference is
recorded by the electronic unit which manages
the level display function and also controls the
"low oil level" warning light display on the
central liquid crystal display.
When the ignition is switched on, the central dis-
play shows the oil level in a series of "blocks" for
approximately 30 seconds, before returning to
displaying the trip mileometer and total mileome-
ter functions (or "odometer" function).
NOTE : Turning the trip mileometer reset button
before the end of the timed period will display
the "odometer" function.
LOOKING FOR FAULTS
If a short circuit or an open circuit is detected
when the oil level is measured, the display will im-
mediately show the trip mileometer / clock dis-
plays.
CHECKING
The sensor resistance must be between 6 and 20
ohms.
The sensor is deemed to be in short circuit for a va-
lue lower than 4 ohms.
The sensor is deemed to be in open circuit for a va-
lue higher than 22 ohms.
LOCATION
Example : F engine
83-12
Page 40 of 83
INSTRUMENT PANEL
Coolant temperature sensor
F engine
83
12535R1
OPERATION
A thermistor transmits a variation in resistance to
a receiver, depending on the coolant
temperature, and a threshold overshoot switch
illuminates the warning light on the instrument
panel when the temperature reaches 118°C.
CHECKING
Connect an ohmmeter between track 1 (K and E
engines) or track 2 (F engine) on the sensor and
vehicle earth.
Correct value : 160 to 1 250 Ω.
LOCATION
D engine
E engine
98711R4
11634R3
1 Warning light sensor
2 Gauge sensor
83-13
Page 45 of 83

CONTROLS - SIGNALS
Rotary switch under steering wheel
Special notes for refitting
Ensure the wheels are still straight.
Ensure the rotary switch under the steering wheel
is still immobilised before refitting.
If there is any doubt follow the method for cen-
tring described in section 88 "driver’s airbag".
Renew the steering wheel bolt each time it is re-
moved (pre-bonded bolt).
Observe the correct tightening torque (4.5
daN.m).
84
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).
IMPORTANT: if these instructions are not obser-
ved, the systems may not operate normally and
may be incorrectly triggered.
84-5
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 60 of 83

WIRING
Remote control for door locking
88
Ignition off:
1.Press and hold the central door locking button
for a few seconds until the doors lock and un-
lock.
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
(if fitted) and bargraph 17 LH on the XR25
(code
D56, fiche n° 56).
2.Press the remote control twice (the doors lock
and unlock and the red warning light extin-
guishes, if fitted).
NOTE : If both remote controls (if fitted) are
desynchronised, 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).
3.The procedure is complete - check that the
doors lock correctly.
Removal - Refitting
The dashboard must be partially removed to re-
move the decoder unit.
Remove:
- the steering wheel with the wheels straight,
- the half cowlings under the steering wheel,
- the knee protector under the steering column,
- the lights and wiper controls,
- the instrument panel surround,
- the instrument panel,
- the ashtray, its mounting and the two dash-
board mounting bolts on the heating unit,
- the trim at the bottom of the dashboard on the
driver’s side,
- the two speaker grilles on the dashboard,
- the dashboard mountings.
THE DECODER UNIT
The decoder unit is located in the left hand side of
the dashboard (A).
12967R
88-5
Page 67 of 83

WIRING
Airbags and seat belt pretensioners
88
PRD99498
This bornier is connected instead of the computer,
fitted with a single 30-track connector.
It enables all the ignition lines to be checked by
means of the XRBAG, the supply voltage of the
computer to be measured, and the airbag war-
ning light on the instrument panel to be illumina-
ted.
Terminals also enable the continuity checks to be
carried out on the diagnostic lines, the warning
light lines and the feed to the computer (see sec-
tion on fault finding).
XRBAG TEST UNIT (Elé. 1288)
96833G
This unit is a tool specifically designed for testing
and fault finding on airbag devices and seat belt
pretensioners.
It enables electrical measurements to be carried
out on the different lines in the systems.
(See "fault finding" section).
IMPORTANT: It is not permitted to carry out mea-
surements on these systems with an ohmmeter or
any other electrical measuring instrument: there
is a risk of triggering due to the operating current
of the instrument.
XRBAG 30-TRACK ADAPTER
88-12