2006 RENAULT SCENIC sensor

TYRE PRESSURE MONITOR
Fault finding - Introduction
35B
35B-4
UCH
Program no.: 350 and higher
Vdiag No: 48-4C-4D-4F-50
4. FAULT FINDING PROCEDURE
Procedure to be carried out before entering fault finding mode with the tool:
–Are the faulty wheels equipped with tyre pressure monitor wheel sensors, or were they so at the time of
the fault?
–Check the position of the wheels on the vehicle (wheel sensor colour code). Put the wheels back in
position and program the codes of the four wheel sensors if the wheels are not in their original position.
–Check the wheel pressures with a pressure gauge. Do they correspond to the pressures noted inside
the door or in the driver's handbook for that size of tyres?
A summary of the overall procedure to follow is provided on the following page
in the form of a flow chart.
Edition 4

TYRE PRESSURE MONITOR
Fault finding - System operation
35B
UCH
Program no.: 350 and higher
Vdiag No: 48-4C-4D-4F-50TYRE PRESSURE MONITOR
Fault finding - System operation
SYSTEM COMPOSITION
The tyre pressure monitor system consists of the following components:
–four sensors (one on each wheel but not on the emergency spare wheel)
–a computer (UCH)
–a receiver aerial (17-cm bare wire connected to the UCH)
–an instrument panel display for the driver
In addition to these components, the PAX system is comprised of four special tyres with a support ring to allow flat
tyre driving following a puncture over a maximum distance of 120 miles (200 km), at a maximum speed of 48 mph
(80 km/h).
WARNING
It is forbidden to install PAX System tyres on a vehicle without PAX System tyres as standard.
Edition 435B-9

TYRE PRESSURE MONITOR
Fault finding - System operation
35B
UCH
Program no.: 350 and higher
Vdiag No: 48-4C-4D-4F-50
System operation:
–The valves are activated after driving at a speed greater than 12 mph (20 km/h).
–During driving, the valves emit signals every minute.
–The valves remain active for 15 minutes after the vehicle stops, then switch to standby mode.
–In standby mode, the valves emit signals only if they detect a pressure difference between two successive
measurements greater than 68 mbar or if the pressure difference since last emitting is greater than 68 mbar (due
to tyre cooling).
–The tyres are considered to be cold when the vehicle speed has been zero for 1h 45 min.
–The minimum time for detection of a leak is approximately 15 minutes.
–The message Pressure unsuitable for the speed is activated only if the vehicle travels at more than 102 mph
(170 km/h) (as an indication) for 3 minutes and the pressure on at least one of the tyres is 400 mbar less than the
recommended pressure at low speed. This message is inactive if the tyres are inflated to motorway pressure,
irrespective of the vehicle speed.
–Alert thresholds:
–over-inflated while cold =recommended pressure + 700 mbar
–over-inflated while warm = recommended pressure + 850 mbar
–under-inflated = recommended pressure - 400 mbar
–very under-inflated = recommended pressure - 600 mbar
–imbalance = difference in pressure between the left-hand and right-hand wheels on the same axle greater
than 500 mbar
–Tyre pressure monitor information messages for the driver:
–"PUNCTURE: CHANGE TYRE" + STOP warning light + highlighting of the wheel concerned on the
instrument panel display + buzzer.
–"ADJUST TYRE PRESSURE" + highlighting of the wheel concerned on the instrument panel.
–"INFLATE TYRES MOTORWAY" + highlighting of all four wheels on the instrument panel.
–"TYRE SENSOR INOPERATIVE" + clearing of the wheel concerned.
–"ELECTRONIC FAULT" + "Service" warning light + the wheels concerned disappear from the
instrument panel.
–Tyre pressure monitor information messages for a puncture with the PAX System:
–"PUNCTURE: REPAIR TYRE" + highlighting of the wheel concerned on the instrument panel.
–"PUNCTURE: SLOW DOWN" + buzzer (if vehicle speed > 48 mph (80 km/h)).
–"DRIVING WITH FLAT: X MILES REMAINING" (X decreases from 120 miles (200 km) to 0) + STOP
warning light when X = 0 + highlighting of the wheel concerned on the instrument panel.
⇒
No instrument panel display of tyre pressure on the SCENIC II.
Edition 435B-10

TYRE PRESSURE MONITOR
Diagnostics - Replacement of components
35B
UCH
Program no.: 350 and higher
Vdiag No: 48-4C-4D-4F-50TYRE PRESSURE MONITOR
Diagnostics - Replacement of components
REPLACING THE UCH COMPUTER
Switch off the ignition before replacing the UCH.
Following replacement of the UCH, configure the new computer according to the equipment and options present on
the vehicle.
Configure the UCH: WITH or WITHOUT the function for the Tyre pressure monitor using command CF023 Tyre
pressure monitor function located in scenario SC008 UCH Type.
WITH or WITHOUT PAX System type tyres using command CF016 PAX System type tyres.
Enter the recommended pressures using command VP005 Enter recommended pressures
Program the codes for the four valves using command SC002 Programming the four valve codes.
The configuration is described in the Configuration and programming section.
For the other configurations of this computer, see the section on UCH
REPLACING ONE OR MORE VALVE(S)
Program the UCH with the code for the new valve using command SC002 Program four valve codes (see
Configurations and programming).
REPLACING THE INSTRUMENT PANEL
After replacing the instrument panel, configure it according to the equipment present on the vehicle.
In the instrument panel, configure the tyre pressure monitor function WITH, WITHOUT or WITH PAX using
command CF145 Tyre pressure monitor. This configuration is described in the Instrument panel specifications
section of this MR (see 83A, Instrument panel). Note:
Program the codes for all four sensors even if only one valve has been replaced.
Edition 435B-13

TYRE PRESSURE MONITOR
Fault finding - Configurations and programming
35B
UCH
Program no.: 350 and higher
Vdiag No: 48-4C-4D-4F-50TYRE PRESSURE MONITOR
Fault finding - Configurations and programming
SC002:
PROGRAMMING THE FOUR VALVE CODES
IMPORTANT
Any repairs that involve replacement of a wheel sensor require knowledge of the recommendations
defined in Workshop Repair Manual 371 section 35.
–Inflate the four tyres to 3.8 bar.
–Using the diagnostic tool, establish dialogue with the UCH.
–Select the Repair mode menu
–Select the Programming menu
–Select line SC002 Programming the four valve codes under the Tyres function.
Display of stored codes and recognised valve set.
–Select the Valve set selection menu, then Summer or Winter.
–Confirm to obtain the table "valve programming conditions".
–Confirm by selecting next, which brings up the search for valve code menu.
–Excite each valve by holding the valve exciter on the tyre, just under the valve in question.
–Start with the front left-hand wheel.
–Wait for the new code to appear on the screen before moving on to the next valve.
–Program the codes in the following order:
Front left-hand Front right-hand Rear right-hand Rear left-hand
–Click on the "Confirm" button to transmit the codes to the UCH.
–Inflate the tyres to the recommended pressures.
–Carry out a road test: speed > 12 mph (20 km/h) for 10 minutes.
–Make sure no message appears on the instrument panel.
IMPORTANT
When swapping wheels over, reprogram the UCH for the new valve positions using the diagnostic tool and
programming the valve codes.
Then replace the colour rings in the locations noted on the label on the driver's door.
Edition 435B-14

TYRE PRESSURE MONITOR
Fault finding - Configurations and programming
35B
UCH
Program no.: 350 and higher
Vdiag No: 48-4C-4D-4F-50
CF023:
TYRE PRESSURE MONITOR FUNCTION
(in programming command SC008 UCH type)
WRITING THE CONFIGURATION WITH OR WITHOUT TYRE PRESSURE MONITOR:
–Select the repair mode menu.
–Select the Programming menu
Select line SC008 UCH type, then the line CF023 Tyre Pressure Monitor function then with or without
Confirm the selection.
Check that the configuration has been stored correctly.
IMPORTANT
CONFIGURATION INCONSISTENCY BETWEEN THE INSTRUMENT PANEL AND UCH
1
st case: If the instrument panel detects the tyre pressure monitor system programmed in the UCH but
not in its own configuration. The message ELECTRONIC FAULT appears, the four wheels
disappear on the instrument panel display, and the Service warning light comes on.
2
nd case: The instrument panel detects that the Tyre pressure monitor is programmed in its own
configuration but the UCH fails to respond to any requests from the instrument panel (not
configured in UCH). The message TYRE SENSOR INOPERATIVE will appear, the four wheels
will disappear from the instrument panel display and the Service warning light will come on.
Edition 435B-16

TYRE PRESSURE MONITOR
Fault finding - Interpretation of statuses
35B
UCH
Program no.: 350 and higher
Vdiag No: 48-4C-4D-4F-50TYRE PRESSURE MONITOR
Fault finding - Interpretation of statuses
ET032
ET033
ET034
ET035FRONT LEFT-HAND WHEEL VALVE SIGNAL
FRONT RIGHT-HAND WHEEL VALVE SIGNAL
REAR RIGHT-HAND WHEEL VALVE SIGNAL
REAR LEFT-HAND WHEEL VALVE SIGNAL
NOTESBefore carrying out any operation, apply the fault finding procedure (see Introduction).
Special notes: If a tyre pressure sensor is present in the wheel, precautions must
be taken when removing/refitting tyres. Failure to take the precautions specified
in Section 35 of the Workshop Repair Manual could result in the sensor being
damaged, and potential operating faults in the tyre pressure monitor.
OK:
Absent:
Over-inflated:
Punctured:
Under-inflated: The sensor is operating correctly and the pressure is correct.
The sensor does not transmit or is not present on the vehicle.
The sensor sends a "tyre over-inflated" signal.
The sensor sends a "tyre very under-inflated" signal (recommended pressure 0.6 bar) or a
rapid pressure loss signal.
The sensor sends a "tyre under-inflated" signal.
Make sure the signal sent by the sensor corresponds to the pressure measured with the pressure gauge.
If it does not, inflate or deflate the tyres and check that they change status.
IMPORTANT
Wait 90 seconds before checking the change of status.
Original status = over-inflated
Original status = punctured or under-
inflatedDeflate
InflateFinal status = OK or punctured or under-
inflated
Final status = OK or over-inflated
If the status still displays an incorrect signal as compared to the tyre inflation level, refer to the fault finding chart.
–If the original status is: over-inflated or under-inflated
See ALP 2 and 3 Pressure adjustment.
–If the original status is: Punctured
See ALP 7 Puncture: change the tyre.
–If the original status is: Absent
See ALP 4, 5 and 6 Sensor out of order.
–If the status does not change, replace the sensor on the wheel concerned by following the instructions and
programming procedure for the four valve codes, SC002 Program four valve codes (see Configuration and
programming).
AFTER REPAIRDeal with any other possible faults.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
SSPP_V48_ET032/SSPP_V4C_ET032 /SSPP_V4D_ET032/SSPP_V4F_ET032 /SSPP_V50_ET032/
SSPP_V48_ET033/SSPP_V4C_ET033 /SSPP_V4D_ET033/SSPP_V4F_ET033 /SSPP_V50_ET033/
SSPP_V48_ET034/SSPP_V4C_ET034 /SSPP_V4D_ET034/SSPP_V4F_ET034 /SSPP_V50_ET034/
SSPP_V48_ET035/SSPP_V4C_ET035 /SSPP_V4D_ET035/SSPP_V4F_ET035 /SSPP_V50_ET035
Edition 4
35B-23

TYRE PRESSURE MONITOR
Fault finding - Customer complaints
35B
UCH
Program no.: 350 and higher
Vdiag No: 48-4C-4D-4F-50TYRE PRESSURE MONITOR
Fault finding - Customer complaints
NO DIALOGUE WITH THE UCH COMPUTER ALP 1
"READJUST TYRE PRESSURE" MESSAGE LIGHTS UP ALP 2
"ELECTRONIC FAULT" MESSAGE LIGHTS UP ALP 3
"TYRE SENSOR OUT OF ORDER" MESSAGE LIGHTS UP
with disappearance of a single wheel warning light ALP 4
with disappearance of the four wheel warning lights ALP 5
intermittent warning ALP 6
"PUNCTURE - CHANGE TYRE" MESSAGE LIGHTS UP ALP 7
Edition 435B-29