PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
87B
87B -131
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
87B
87B -131V9 MR-372-J84-87B000$387.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
FUNCTION: TYRES
Sub-function: Tyre approval (continued 1)
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(fault reading and configuration checks).
Application condition: engine stopped, + after ignition feed present.
Sub-functionParameter or
Status
checked Action Display and Notes Fault finding
Tyre approval PR004:Front right-hand
wheel pressure0 bar < X < 3.55 barIf X = 0 bar, consult the fault
finding procedure for parameter
PR004.
Check that the recommended
pressure (PR009 to PR012)
corresponds correctly to the
vehicle.
PR020:Front right-hand tyre
temperature- 40ºC
50˚C and the pressure is 0 bar.
Perform a road test so that the
sensor emits the actual
temperature and pressure.
ET034:Rear right-hand
wheel valve signalOK
ABSENT
OVER-INFLATED
FLAT
UNDER-INFLATEDCheck that the tyre pressure is
at the recommended pressure
(see MR 364 (Mégane II) or
MR 370 (Scénic II),
Mechanical, 35A, Tyre
pressure: Identification).
If status ET034 is not OK,
consult the fault finding
procedure for status ET034.
PR005:Rear right-hand
wheel pressure0 bar < X < 3.55 barIf X = 0 bar, consult the fault
finding procedure for parameter
PR005.
Check that the recommended
pressure (PR009 to PR012)
corresponds correctly to the
vehicle.
PR021:Rear right-hand tyre
temperature- 40ºC
50˚C and the pressure is 0 bar.
Perform a road test so that the
sensor emits the actual
temperature and pressure.
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
87B
87B -132
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
87B
87B -132V9 MR-372-J84-87B000$387.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
FUNCTION: TYRES
Sub-function: Tyre approval (continued 2)
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(fault reading and configuration checks).
Application condition: engine stopped, + after ignition feed present.
Sub-functionParameter or
Status
checked Action Display and Notes Fault finding
Tyre approval ET035:Rear left-hand
wheel valve signalOK
ABSENT
OVER-INFLATED
FLAT
UNDER-INFLATEDCheck that the tyre pressure is
at the recommended pressure
(see MR 364 (Mégane II) or
MR 370 (Scénic II),
Mechanical, 35A, Tyre
pressure: Identification).
If status ET035 is not OK,
consult the fault finding
procedure for status ET035.
PR006:Rear left-hand
wheel pressure0 bar < X < 3.55 barIf X = 0 bar, consult the fault
finding procedure for parameter
PR006.
Check that the recommended
pressure (PR009 to PR012)
corresponds correctly to the
vehicle.
PR022:Rear left-hand tyre
temperature- 40ºC
50˚C and the pressure is 0 bar.
Perform a road test so that the
sensor emits the actual
temperature and pressure.
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
87B
87B -133
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
87B
87B -133V9 MR-372-J84-87B000$387.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
FUNCTION: TYRES
Sub-function: Tyre management
fr*: front,
rr*: rear.
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(fault reading and configuration checks).
Application condition: engine stopped, + after ignition feed present.
Sub-functionParameter or
Status
checked Action Display and Notes Fault finding
Tyre
management PR009:Fr* wheel low speed
recommended
pressure.
In barCheck that the values entered
are actually the recommended
ones (see MR 364 (Mégane II)
or MR 370 (Scénic II),
Mechanical, 35A, Tyre
pressure: Identification).
Otherwise, enter the
recommended pressures using
command VP005 Write
recommended pressures. PR010:Rr* wheel low speed
recommended
pressure.
PR012:Fr* wheel high speed
recommended
pressure.
PR011:Rr* wheel high
speed
recommended
pressure.
PR014:Left/right pressure
difference threshold0.5 bar
None. PR015:Low under-inflation
threshold- 0.4 bar
PR059:Puncture report
threshold- 0.6 bar
PR017:Cold over-inflation
threshold0.7 bar
PR018:Warm over-inflation
threshold0.8 bar
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Status summary table
87B
87B -139
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Status summary table
87B
87B -139V9 MR-372-J84-87B000$430.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Status summary table
*RCH = Passenger Compartment Heating ResistorTool status Diagnostic tool title Vdiag
ET008UCH blankV44, V48, V4C,
V4D, V4F, V50
ET010Card frequency (in MHz)V44, V48, V4C,
V4D
ET014Control power level
V44, V48, V4C,
V4D, V4F, V50 ET015Passenger compartment fan
ET016Buzzer activation request
ET017Number of RCH* required
ET018Number of RCH* authorised by alternator
ET019Number of RCH* authorised by injection computer
ET020Number RCH* activated.
ET021RCH* 1 relay control
ET022RCH* 2 relay control
ET023RCH* 3 relay control
ET025Retractable roof V48, V4C, V4D,
V4F, V50
ET026Heated rear screen switch
V44, V48, V4C,
V4D, V4F, V50 ET028Heated rear screen button
ET029Air conditioning button
ET030Air conditioning request 2
ET031Fast idle speed request for RCH*
ET032Front left-hand wheel valve signal
ET033Front right-hand wheel valve signal
ET034Rear right-hand wheel valve signal
ET035Rear left-hand wheel valve signal
ET038Service warning light on request
ET039STOP warning light on request
ET040Tyre pressure monitoring system
MR-372-J84-87B000$430.mif
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -146
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -146V9 MR-372-J84-87B000$473.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET016
BUZZER ACTIVATION REQUEST
NOTESThere must be no present or stored faults.
Special note:
Status ET016 is STATUS 1 or STATUS 2 if the SSPP buzzer is activated. A tyre is
punctured or there is a severe under-inflation.
ET016 is STATUS 1.
Request for activation of the buzzer linked to display of a puncture warning message on the instrument panel.
Adjust the pressures of the four tyres to the recommended pressures. Repair or replace the tyre if necessary.
ET016 is STATUS 2.
Request for buzzer activation to warn the driver that the vehicle speed is too high when the vehicle has one or more
punctured tyres.
This signal is only valid for vehicles fitted with runflat tyres.
Adjust the pressures of the four tyres to the recommended pressures. Repair or replace the tyre if necessary.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_ET016/UCH_V48_ET016/ UCH_V4C_ET016/
UCH_V4D_ET016 /UCH_V4F_ET016/UCH_V50_ET016
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -158
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -158V9 MR-372-J84-87B000$473.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
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 note:
If a wheel is equipped with a tyre pressure sensor, precautions must be taken
when removing/refitting tyres.
Failure to take the precautions specified in Section 35 of Workshop Repair
Manual 364 (for Mégane II) or 370 (for Scénic II) could result in the sensor being
damaged, and potential operating faults in the tyre pressure monitoring system.
CORRECT:The sensor is operating correctly and the pressure is correct.
Absent:The UCH is not receiving the signal from the sensor.
Over-inflated:The sensor sends a "tyre over-inflated" signal.
Puncture:The sensor sends a "tyre severely under-inflated" signal (pressure - 0.6 bar) or a rapid pressure
loss signal.
Under-inflated:The sensor sends a "tyre under-inflated" signal.
STEP 1
Start by checking the tyre inflation and if necessary restore to the recommended pressure.
Next, to ensure that the wheel sensors are functioning properly, at each conformity check, make sure all sensors
really are transmitting. To do this, create a tyre leak and check that its status changes:
Initial status = over-inflated deflate Final status = Correct or puncture or under-inflated
Initial status = puncture or under-inflated inflate Final status = Correct or over-inflated
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.
UCH_V44_ET032/UCH_V48_ET032/UCH_V4C_ET032/UCH_V4D_ET032/UCH_V4F_ET032/UCH_V50_ET032/UCH_V44_ET033/
UCH_V48_ET033/UCH_V4C_ET033/UCH_V4D_ET033/UCH_V4F_ET033/UCH_V50_ET033/UCH_V44_ET034/UCH_V48_ET034/
UCH_V4C_ET034/UCH_V4D_ET034/UCH_V4F_ET034/UCH_V50_ET034/UCH_V44_ET035/UCH_V48_ET035/UCH_V4C_ET035/
UCH_V4D_ET035/UCH_V4F_ET035/UCH_V50_ET035
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -159
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -159V9 MR-372-J84-87B000$473.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET032
ET033
ET034
ET035
CONTINUED
STEP 2
IMPORTANT:
Wait 1 minute and 30 seconds before checking the change of status.
–If the original status is: over-inflated or under-inflated
Consult ALP 52 "Adjust tyre pressure" message appears (the wheel concerned is highlighted on the
display) and ALP 56 "Adjust tyre pressure" message appears (2 wheels are highlighted on the display).
–If the original status is: puncture
Consult ALP 56 "Stop! Tyre puncture" message appears (the wheel is highlighted on the display).
–If the original status is: absent
Consult ALP 54 "Tyre sensor fault" message appears (wheel warning light disappears) and ALP 55 "Tyre
sensor fault" message appears (4 wheel warning lights disappear).
If the status does not change, replace the sensor on the wheel concerned by following the instructions and the
programming procedure for the four valve codes, SC002 Program 4 valve codes (see Configurations 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.
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -160
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -160V9 MR-372-J84-87B000$473.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
In the event that status ET040 is inoperative:
RF*: Radio frequency.
ET040TYRE PRESSURE MONITOR SYSTEM
NOTESBefore carrying out any operation, apply the fault finding procedure (see Introduction).
Check that no fault is present.
ACTIVE: If the four wheel valves transmit their signal and if the signal is correctly received by the UCH.
INOPERATIVE: If a component is faulty or incorrectly configured.
Check the configuration reading to ensure that LC017 Tyre pressure monitor function is correctly entered in the
UCH. If this is not the case, start configuration in the "Programming" menu with configuration CF023 Tyre pressure
monitor function, under SC008 UCH type.
Check that there is no ABS fault.
Check status ET045 RF* frame received to make sure the receiver aerial is working properly by requesting central
door locking with the card.
If, after performing all these checks, no fault has been found and status ET040 is still Inoperative, contact the
Techline.
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.
UCH_V44_ET040/UCH_V48_ET040/UCH_V4C_ET040/UCH_V4D_ET040/UCH_V4F_ET040 / UCH_V50_ET040