PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 323
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 323V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP18No driver's window operation
(Driver and passenger electric windows)
NOTESUse the Wiring Diagram Technical Note and a multimeter.
Only check this customer complaint after performing a complete check with the
diagnostic tool.
For vehicles with Mégane II phase 2 bodywork, see 87D Electric windows -
Sunroof, Fault finding chart.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Remove the driver's window winder switch (see MR 364 (Mégane II) or MR 370 (Scenic) Mechanical systems,
87D, Electric windows - Sunroof, Front window winder switch on driver's door: Removal - Refitting) and
disconnect its connector.
Check for + 12 V on connection 21C of component 1512.
Is the feed correct?
YES NO
Shunt track 5 of the white driver's electric window
switch connector with track 5 of the black driver's
electric window switch connector and shunt
connections 21E and MAM of component 1512 to
lower the window (to raise the window, shunt track 5
of the white driver's electric window switch
connector with track 4 of the white driver's electric
window switch connector and shunt
connections 21C and MAM of component 1512).
Does the window move?
YES
Replace the driver's electric window switch
(see MR 364 (Mégane II) or MR 370 (Scenic II)
Mechanical systems, 87D, Electric windows -
Sunroof, Front electric window switch on
driver's door: Removal - Refitting).
Check that the left-hand dashboard cross member earth
is in good condition and correctly secured to the chassis.
If the earth is not in good condition, clean and retighten
the terminal.
If the earth is faulty, replace the wiring.
NO
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP18 /UCH_V48_ALP18/UCH_V4C_ALP18/
UCH_V4D_ALP18/UCH_V4F_ALP18/UCH_V50_ALP18
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 335
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 335V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP23No electric window operation
(Driver's and passengers' electric windows)
NOTESUse the Wiring Diagram Technical Note and a multimeter.
Only check this customer complaint after performing a complete check with the
diagnostic tool.
For vehicles with Mégane II phase 2 bodywork, see 87D Electric windows -
Sunroof, Fault finding chart.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Remove the driver's window winder switch (see MR 364 (Mégane) or MR 370 (Scenic) Mechanical systems,
87D, Electric windows - Sunroof, Front window winder switch on driver's door: Removal - Refitting) and
disconnect its connector.
Check for + 12 V between track 5 of the driver's window winder switch white connector and track 4 of the driver's
window winder black connector.
Is the feed correct?
YES NO
Replace the driver's electric window switch
(see MR 364 (Mégane) or MR 370 (Scenic)
Mechanical systems, 87D, Electric windows -
Sunroof, Front electric window switch on
driver's door: Removal - Refitting).
Check that the left-hand dashboard cross member
earth is in good condition and secured correctly.
If the earth is not in good condition, clean and
retighten the terminal. If the earth is faulty, replace
the wiring.
If the fault is still present, contact the Techline.
Check for + 12 V between connection track 5 of the
driver's window winder switch white connector and
the chassis earth.
Is the feed correct?
YES NO
Check the continuity on the following connection:
●Connection code 21K between
components 203 and 645.
If the continuity is faulty, check the intermediate
connector.
If the connector is faulty and if there is a repair
procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair),
repair the connector; otherwise, replace the wiring.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP23 /UCH_V48_ALP23/UCH_V4C_ALP23/
UCH_V4D_ALP23/UCH_V4F_ALP23/UCH_V50_ALP23
