wiring diagram RENAULT SCENIC 2008 J84 / 2.G Passenger Comparment Connection Unit Workshop Manual

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 313
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 313V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP13 No front and rear screen washer
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Windscreen washer
Check status ET078 Front windscreen washer
request by moving the control stalk.
Is status ET078 present?
YES
Check for + 12 V between connections 16A and 24A
of component 677 (running).
Is there + 12 V?
YES
Check the hoses. If everything is OK.
Replace the washer fluid pump.
If the fault is still present, contact the Techline.
NOApply interpretation of status ET078 Front
windscreen washer request.
NOCheck the continuity and insulation of
connection 16A between components 677
and 1519.
Check the continuity and insulation of
connection 24A between components 677
and 1519.
If the connection or connections are faulty
and there is a repair procedure (see
Technical Note 6015A, Electrical wiring
repair, Wiring: Precautions for repair),
repair the wiring, otherwise replace it.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP13 /UCH_V48_ALP13/UCH_V4C_ALP13/
UCH_V4D_ALP13/UCH_V4F_ALP13/UCH_V50_ALP13

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 316
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 316V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP15No passenger 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 passenger's window winder switch (see MR 364 (Mégane II) or MR 370 (Scenic II) Mechanical
systems, 87D, Electric windows - Sunroof, Front window winder switch on passenger's door: Removal -
Refitting) and disconnect its connector.
Check for + 12 V on connections 22A and MAN of component 133.
Are the feeds correct?
YES NO
Shunt connections 22D and 22A and
connections 22C and 22B of component 133 to
lower the window (to raise the window shunt
connections 22C and 22A and connections 22B and
MAN of component 133).
Does the window move?
YES NO
Replace the passenger's window
winder switch (see MR 364
(Mégane II) or MR 370 (Scenic II)
Mechanical systems, 87D,
Electric windows - Sunroof, Front
window winder switch on
passenger's door: Removal -
Refitting).
Remove the passenger's window winder switch
(see MR 364 (Mégane II) or MR 370 (Scenic II)
Mechanical systems, 87D, Electric windows -
Sunroof, Front window winder switch on
passenger's door: Removal - Refitting).
Shunt connection 21C with connections 22A and
22D of component 1512.
Check for + 12 V again on connections 22A and
MAN of components 133.
Are the feeds correct?
YES NO
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).
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP15 /UCH_V48_ALP15/UCH_V4C_ALP15/
UCH_V4D_ALP15/UCH_V4F_ALP15/UCH_V50_ALP15

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 318
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 318V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP16No passenger window operation
(Driver and passenger one-touch 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 passenger's window winder switch (see MR 364 (Mégane II) or MR 370 (Scenic II) Mechanical
systems, 87D, Electric windows - Sunroof, Front window winder switch on passenger's door: Removal -
Refitting) and disconnect its connector.
Shunt connections 22A and MAN of component 133 to lower the window and to raise the window shunt
connections 22B and MAN of component 133.
Does the window move?
YES NO
Replace the passenger's window winder switch
(see MR 364 (Mégane II) or MR 370 (Scenic II)
Mechanical systems, 87D, Electric windows -
Sunroof, Front window winder switch on
passenger's door: Removal - Refitting).
Check that the right-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.
Check the continuity of the following connection:
●Connection code BP70 between components 204 and 260.
Check the intermediate connectors and the fuse if there is a continuity or supply fault.
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.
Check for earth on connection MAN of
component 204.
Is the earth correct?
NO YES
Connect a voltmeter across
connections BP70 and MAN of
component 204.
Does the voltmeter display the
correct supply?
NO YES
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP16 /UCH_V48_ALP16/UCH_V4C_ALP16/
UCH_V4D_ALP16/UCH_V4F_ALP16/UCH_V50_ALP16

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 319
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 319V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP16
CONTINUED
NOTESUse the Wiring Diagram Technical Note and a multimeter.
Only check this customer complaint after performing a complete check with the
diagnostic tool.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Using a multimeter, check for + 12 V
between connections BP70 and 21K of
component 204.
Is the voltage approximately 12 V?
YES
Using a multimeter, check for + 12 V between
connections 22A and 22B of component 133.
Is the voltage approximately 12 V?
YES
Replace the window winder motor (see MR 365
(Mégane) or MR 371 (Scenic) Bodywork, 51A,
Side opening element mechanisms, Front side
door electric window lift mechanism: Removal -
Refitting).
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the fault is still present, contact the Techline.
NOCheck the continuity on the following
connection:
●Connection code 21K between
components 645 and 204.
If one continuity is poor, check the
intermediate connectors.
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.
NOCheck the continuity of the following
connections:
●Connection code 22A.
●Connection code 22B between
components 204 and 133.
Is the continuity of the connections
correct?
YES NO
AFTER REPAIRCarry out a complete check using the diagnostic tool.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 320
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 320V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP17No passenger window operation
(Driver's one-touch electric window and passenger electric window)
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 passenger's window winder switch (see MR 364 (Mégane II) or MR 370 (Scenic II) Mechanical
systems, 87D, Electric windows - Sunroof, Front window winder switch on passenger's door: Removal -
Refitting) and disconnect its connector. Check for + 12 V on connections 22D and 22C of component 133.
Are the feeds correct?
YES NO
Shunt connections 22C and 22B of component 133
and shunt connections 22D and 22A of
component 133 to lower the window (to raise the
window, shunt connections 22D and 22B of
component 133 and connections 22C and MAN of
component 133).
Does the window move?
YES NO
Replace the passenger's window
winder switch (see MR 364
(Mégane II) or MR 370 (Scenic II)
Mechanical systems, 87D,
Electric windows - Sunroof, Front
window winder switch on
passenger's door: Removal -
Refitting).
Remove the passenger's window winder switch
(see MR 364 (Mégane II) or MR 370 (Scenic II)
Mechanical systems, 87D, Electric windows -
Sunroof, Front window winder switch on
passenger's door: Removal - Refitting) and
disconnect its connector.
Check for + 12 V on connection 22C of component 1512.
Is the feed correct?
YES NO
Check the continuity on the following
connection:
●Connection code A1 between
components 260 and 1512.
If there is poor continuity, 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.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP17 /UCH_V48_ALP17/UCH_V4C_ALP17/
UCH_V4D_ALP17/UCH_V4F_ALP17/UCH_V50_ALP17

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 - 325
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 325V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP19No driver's window operation
(Driver and passenger one-touch 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 II) Mechanical systems,
87D, Electric windows - Sunroof, Front window winder switch on driver's door: Removal - Refitting) and
disconnect its connector.
Shunt connection 21E of component 1512 with connection MAS of component 1512 to lower the window (to raise
the window, shunt connection 21C of component 1512 with connection MAS of component 1512).
Does the window move?
YES NO
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).
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP19 /UCH_V48_ALP19/UCH_V4C_ALP19/
UCH_V4D_ALP19/UCH_V4F_ALP19/UCH_V50_ALP19

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 328
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 328V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP20No driver's window operation
(Driver's one-touch electric window and passenger electric window)
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.
Shunt connections 21E and MAS of component 1512 to lower the window (to raise the window, shunt
connections 21C and MAS of component 1512).
Does the window move?
YES NO
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).
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP20 /UCH_V48_ALP20/UCH_V4C_ALP20/
UCH_V4D_ALP20/UCH_V4F_ALP20/UCH_V50_ALP20

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 331
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 331V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
ALP21Rear left-hand window does not operate
(Rear one-touch 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 rear left-hand window winder switch (see MR 364 (Mégane) or MR 370 (Scenic) Mechanical
systems, 87D, Electric windows - Sunroof, Rear window winder switch: Removal - Refitting) and disconnect
its connector.
Shunt connections 20AL and 23C of component 131 to lower the window (to raise the window, shunt
connections 23D and 20AL of component 131).
Does the window move?
NO YES
Remove the rear left-hand door trim (see MR 365
(Mégane) or MR 371 (Scenic) Bodywork, 72A,
Side opening trims, Rear side door trim:
Removal - Refitting) and disconnect the connectors
from the LH rear window winder and from the LH rear
window winder switch.
Check the continuity of the following connections:
●Connection code 23D.
●Connection code 23C between
components 131 and 202.
Is the continuity good?
YES
Replace the rear left-hand window winder switch
(see MR 364 (Mégane) or MR 370 (Scenic)
Mechanical systems, 87D, Electric windows -
Sunroof, Rear window winder switch on rear
door: Removal - Refitting).
If there is a repair procedure (see Technical Note
6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise
replace it.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP21 /UCH_V48_ALP21/UCH_V4C_ALP21/
UCH_V4D_ALP21/UCH_V4F_ALP21/UCH_V50_ALP21
MR-372-J84-87B000$946.mif

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 332
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 332V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP21
CONTINUED
NOTESUse the Wiring Diagram Technical Note and a multimeter.
Only check this customer complaint after performing a complete check with the
diagnostic tool.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Check for + 12 V between connections BP87 and
MZ of component 202.
Is the feed correct?
NO
Check for + 12 V between connection BP87 and the
earth of the chassis.
Is the feed correct?
NO
Check the continuity on the following connection:
●Connection code 21K between components 645 and 202.
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 continuity is correct, check the rear window winder motor 40A fuse.
If the fuse is in good condition and the fault is still present, contact the Techline.
YESCheck the continuity on the following
connection:
●Connection code 21K between
components 202 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.
YESCheck that the rear left-hand end panel
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.
AFTER REPAIRCarry out a complete check using the diagnostic tool.