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

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 - 324
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 324V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP18
CONTINUED
Connect a voltmeter across connections 21C and
21E of component 203.
Reconnect the window winder switch and
activate it; is the supply correct?
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).
NOCheck the continuity of the following
connections:
●Connection code 21E.
●Connection code 21C between
components 203 and 1512.
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.

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 - 326
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 326V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP19
CONTINUED 1
Check for earth on connection MAS of
component 1512.
Is the earth correct?
NO YES
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.
Check the continuity on the following connection:
●Connection code BP55 between
components 203 and 260.
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.
NOCheck for earth on connection 22D of
component 1512.
Is the earth correct?
YES
NOCheck for + 12 V on connection BP55 of
component 1512.
Is the feed correct?
YES
AFTER REPAIRCarry out a complete check using the diagnostic tool.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 327
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 327V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP19
CONTINUED 2
Check for + 12 V on connection 21E of component 1512.
Is the feed correct?
YES NO
Check for + 12 V between connection 21K and BP55
of component 1512.
Is the feed correct?
YES NO
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).
Check the continuity on the following connection:
●Connection code 21K.
Between components 203 and 645.
In the event of a continuity fault, check the
intermediate connector.
If there is a repair procedure (see Technical Note
6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise
replace it.
Check the continuity of the following connections:
●Connection code 21E.
●Connection code 21C.
Between components 203 and 1512.
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.
Is the continuity good?
YES NO
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 there is a repair procedure (see Technical Note
6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise
replace it.
If the fault is still present,
Contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.

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 - 329
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 329V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP20
CONTINUED 1
Check for earth on connection MAS of
component 1512.
Is the earth correct?
NO YES
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.
Check the continuity on the following connection:
●Connection code BP55 between
components 203 and 260.
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.
NOCheck for earth on connection MAS of
component 152.
Is the earth correct?
YES
NOCheck for + 12 V on connection BP55 of
component 203.
Is the feed correct?
YES
AFTER REPAIRCarry out a complete check using the diagnostic tool.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 330
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 330V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP20
CONTINUED 2
Check for + 12 V on connection 21E of component 1512 and on connection 21C of component 1512.
Is the feed correct?
YES NO
Check for + 12 V between connections BP55 and
21K of component 1512.
Is the feed correct?
YES NO
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).
Check the continuity on the following connection:
●Connection code 21K between
components 203 and 645.
In the event of a continuity fault, check the
intermediate connector.
If there is a repair procedure (see Technical Note
6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise
replace it.
Check the continuity of the following connections:
●Connection code 21E.
●Connection code 21C between
components 203 and 1512.
Is the continuity good?
YES NO
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 there is a repair procedure (see Technical Note
6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise
replace it.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.

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.