87B-387
AFTER REPAIRCarry out a complete check with the diagnostic tool.
V9 MR-372-J84-87B000$990.mif
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP 53"Adjust tyre pressure" message appears
(2 wheels are highlighted on the display)
Note:
In Vdiag 44 vehicles, the Service warning light comes on with the instrument panel message.
NOTESCheck that all the faulty tyres are fitted with tyre pressure monitor valves.
Is there a pressure
imbalance between the left-
hand and right-hand tyre on
the same axle?Check the positions of
the coloured rings
against the label on the
driver's side.
Program the four valve
codes and reinstall the
coloured rings in the
position indicated on
the label on the driver's
side. Have the front and rear
tyres been swapped?
Adjust the tyre pressure to the
manufacturer's recommended
levels.
Is the fault still present?End of fault finding.
NO
YESYES
NO
B
NO
YES
A
UCH_V44_ALP53 / UCH_V48_ALP53 / UCH_V4C_ALP53 / UCH_V4D_ALP53 / UCH_V4F_ALP53 / UCH_V50_ALP53
87B-391
AFTER REPAIRCarry out a complete check with the diagnostic tool.
V9 MR-372-J84-87B000$990.mif
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP 56"Stop! Tyre puncture" message appears
(the wheel is highlighted on the display)
NOTESNone.
Is the tyre punctured?Repair the tyre.
Check the pressure in all 4 tyres with a
pressure gauge (problem: severe under-
inflation).
Is the pressure correct?
Make sure the valve seal is not damaged.
Check that the sealing nut on the valve is one for
valves installed on the Mégane II or Scénic II, and
not one for a Laguna II, Vel Satis or Espace IV. Read the recommended pressures in the UCH
(PR009 to PR012).
Do the values of these parameters match
the manufacturer's recommended
pressures?
After all these checks, if the message still appears
on the instrument panel, contact Techline.
Write the recommended
pressures with command VP005
Enter recommended pressures.
Contact the Techline.
YES
NO
NO
YES
NOYES
UCH_V44_ALP56 / UCH_V48_ALP56 / UCH_V4C_ALP56 / UCH_V4D_ALP56 / UCH_V4F_ALP56 / UCH_V50_ALP56
