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

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.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 333
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 333V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP22Rear right-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 right-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 23A of component 132 to lower the window (to raise the window, shunt
connections 23B and 20AL of component 131).
Does the window move?
NO YES
Remove the rear right-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 RH rear window winder
and from the RH rear window winder switch.
Check the continuity of the following connections:
●Connection code 23B.
●Connection code 23A between
components 130 and 201.
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_ALP22 /UCH_V48_ALP22/UCH_V4C_ALP22/
UCH_V4D_ALP22/UCH_V4F_ALP22/UCH_V50_ALP22

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 334
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 334V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP22
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
MAQ of component 201.
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 BP87 between components 260 and 201.
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 645 and 201.
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 right-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.

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

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 336
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 336V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24 NO SUNROOF OPENING AND CLOSING
NOTESOnly consult this customer complaint after 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.
Carry out UCH configuration reading and check that
command LC070 (ONE-TOUCH ELECTRIC
WINDOWS/SUNROOF) is configured WITH.
Is command LC070 configured WITH?
YES
Move the sunroof control to the closed position and
press and hold the central part of the control.
After pressing the central part of the control for
approximately 10 seconds, does the roof move
smoothly?
YES
See ALP26.
NOModify the configuration
(see Configurations and programming).
NO
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP24 /UCH_V48_ALP24/UCH_V4C_ALP24/
UCH_V4D_ALP24/UCH_V4F_ALP24/UCH_V50_ALP24

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 337
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 337V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24
CONTINUED 1
Check for + 12 V on connection BP93 of component 304.
Is the feed correct?
YES NO
Use the diagnostic tool to read the faults in the
UCH.
Is fault DF031 One touch window connection
present?
YES NO
Check the continuity, insulation and the
absence of the interference resistance to
+ 12 V and to earth of the following connection:
●Connection code 21K between
components 304 and 645.
If the continuity is faulty, check the
intermediate connectors.
If one of the connectors is faulty and there is a
repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions
for repair), repair the connector, otherwise
replace the wiring.
If the fault is still present, contact the Techline.
Check the continuity on the following connection:
●Connection code BP93 between
components 304 and 260.
●Connection code MAM between
component 304 and Left-hand dashboard/
cross member earth.
If one of the continuities is faulty, check the
intermediate connector.
If a connector is faulty and there is a repair
procedure (see Technical Note 6015A, Electrical
wiring repair, 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 - 338
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 338V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24
CONTINUED 2
Disconnect the connector from the sunroof switch
(see MR 364 Mechanical, 87D Electric windows -
sunroof, sunroof switch: Removal - Refitting).
Check the resistance between connection 52D of
component 304 and the chassis earth.
Is the value shown less than 30 ΩΩ Ω Ω
?
NO
Disconnect the sunroof motor connector
(see MR Mechanical, 87D Electric windows -
sunroof, Sunroof motor: Removal - Refitting).
Check the continuity on the following connection:
●Connection code 52D, between
components 304 and 317.
If the continuity is faulty, check the intermediate
connector.
Is the connection correct?
YESUsing the multimeter and table (ALP24
CONTINUED 6), check the conformity and
correct operation of the sunroof switch.
NOIf 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.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 339
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 339V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24
CONTINUED 3
Disconnect the black connector from the sunroof motor.
Using a multimeter, check for + 12 V between connections BP93 and MAM of component 304.
Is the feed correct?
YESNO
Replace the sunroof motor (see 87D Electric windows - sunroof: Removal - Refitting).
Using the wiring diagram which corresponds to the vehicle, check the conformity of union R301.
Disconnect the sunroof motor connector (see MR Mechanical systems, 87D Electric windows-sunroof,
Sunroof motor: Removal - Refitting) and disconnect union R301.
Check the continuity of the following connections:
●Connection code MAM.
●Connection code BP93 between components 304 and R301.
If the continuity is faulty, check the intermediate connector R339.
If one of the connectors is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring
repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
After repairing the condition of the wiring, initialise the sunroof (see MR fault finding 87D, Electric sunroof:
Initialisation).
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 - 340
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 340V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24
CONTINUED 4
Is the control correct?
YES
Disconnect the sunroof motor connector (see MR Mechanical, 87D Electric windows - sunroof, Sunroof motor:
Removal - Refitting).
Check for + 12 V between connections BP93 and MAM of component 304.
Is the feed correct?
YESNO
Using the wiring diagram which corresponds to the vehicle, check the conformity of union R301.
Disconnect the sunroof motor connector (see MR Mechanical systems, 87D Electric windows-
sunroof, Sunroof motor: Removal - Refitting) and disconnect union R301.
Check the continuity of the following connections:
●Connection code MAM.
●Connection code BP93 between components 304 and R301.
If the continuity is faulty, check the intermediate connector R339.
If one of the connectors is faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the connector, otherwise
replace the wiring.
After repairing the condition of the wiring, initialise the sunroof (see MR fault finding 87D, Electric
sunroof: Initialisation).
If the fault is still present, contact the Techline.
NOReplace the control (see MR Mechanical
systems, 87D Electric windows -
sunroof, Sunroof switch: Removal -
Refitting).
AFTER REPAIRCarry out a complete check using the diagnostic tool.