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

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 341
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 341V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24
CONTINUED 5
Check using status ET087 Sunroof/one touch window authorisation that authorisation for the UCH to open the
sunroof is ACTIVE.
Disconnect the sunroof motor connector (see MR Mechanical, 87D Electric windows - sunroof, Sunroof motor:
Removal - Refitting).
Check for + 12 V between connections BP93 and 21K of component 304.
Is the feed correct?
NOYES
Disconnect the sunroof motor connector (see MR Mechanical systems, 87D Electric windows-
sunroof, Sunroof motor: Removal - Refitting) and disconnect union R301.
Check the continuity on the following connection:
●Connection code 21K between components 304 and 645.
If the continuity is faulty, use the wiring diagram corresponding to the vehicle to check
intermediate connectors R339 and R301.
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 - 342
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 342V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24
CONTINUED 6
Check the continuity and insulation of the following connections:
●Connection code 52J.
●Connection code 52H.
●Connection code 52G between components 304 and R301.
If the continuity is faulty, use the wiring diagram corresponding to the vehicle to check the conformity of
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 continuity and insulation of the following connections are correct: Replace the sunroof motor (see 87D
Electric windows - sunroof: Removal - Refitting).
Control positionConnections 52D and
52HConnections 52D and
52JConnections 52D and
52G
Closed 100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max. Infinite
Tilt position Infinite100 ΩΩ Ω Ω
Max. Infinite
Sliding position 1Infinite100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max.
Sliding position 2Infinite Infinite100 ΩΩ Ω Ω
Max.
Sliding position 3 100 ΩΩ Ω Ω
Max. Infinite100 ΩΩ Ω Ω
Max.
Pressed 100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max.
AFTER REPAIRCarry out a complete check using the diagnostic tool.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 343
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 343V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP25 No sunroof opening position 1, 2 or 3
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.
Does the sunroof operate in at least one of the
control positions?
YES
Disconnect the sunroof switch and check its
conformity and correct operation using a multimeter
and the table below.
Control positionConnections 52D and
52HConnections 52D and
52JConnections 52D and
52G
Closed 100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max. Infinite
Tilt position Infinite100 ΩΩ Ω Ω
Max. Infinite
Sliding position 1Infinite100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max.
Sliding position 2Infinite Infinite100 ΩΩ Ω Ω
Max.
Sliding position 3 100 ΩΩ Ω Ω
Max. Infinite100 ΩΩ Ω Ω
Max.
Pressed 100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max.
NOSee ALP24.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP25 /UCH_V48_ALP25/UCH_V4C_ALP25/
UCH_V4D_ALP25/UCH_V4F_ALP25/UCH_V50_ALP25

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 344
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 344V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP25
CONTINUED
Is the control correct?
YES
Check the continuity and insulation of the following connections:
●Connection code 52J.
●Connection code 52H.
●Connection code 52G between components 304 and R301.
If the continuity is faulty, use the wiring diagram corresponding to the vehicle to check the conformity of
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 continuity and insulation of the following connections are correct: Replace the sunroof motor (see 87D
Electric windows - sunroof: Removal - Refitting).
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.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 345
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 345V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP26The sunroof is difficult to close or the anti-pinch is triggered
without any apparent obstacles
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
For vehicles with Mégane II phase 2 bodywork, (see MR 366, Fault finding, 87D
Electric windows - Sunroof, Fault finding chart).
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Initialise the sunroof (see MR fault finding 87D Electric sunroof: Initialisation).
Has the fault been solved?
YESNO
End of fault finding.
Open the sunroof fully (if not possible, see Defect mode and
safe mode).
Remove the sunroof motor (see MR 364 Mechanical, 87D
Electric windows - Sunroof, Sunroof motor: Removal -
Refitting).
Slide the moving panel of the sunroof manually.
Does the moving panel slide without a point of
resistance?
NO YES
Replace the sunroof motor (see 87D Electric windows -
Sunroof: Removal - Refitting).
Remove the moving sunroof panel
(see MR Bodywork, 52A, Non-side opening
element mechanisms, Mobile sunroof
panel: Removal - Refitting).
Visually check that no foreign bodies
(sand, leaves, etc.) are present in the rails.
Are there any foreign bodies in the rails?
YES NO
Clean the mechanism and the rails with an air gun. Refit the sunroof mobile panel (see MR 365 Bodywork, 52A,
Non-side opening element mechanisms, Moving sunroof panel: Removal - Refitting).
Initialise the sunroof (see MR fault finding 87D Electric sunroof: Initialisation).
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP26 /UCH_V48_ALP26/UCH_V4C_ALP26/
UCH_V4D_ALP26/UCH_V4F_ALP26/UCH_V50_ALP26

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 351
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 351V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP31 Fault locking/unlocking the fuel filler flap
NOTESFirst carry out a function fault finding check.
The locking/unlocking should function on the driver's door. Use Wiring
Diagrams Technical Note for MEGANE II or SCENIC II.
With the flap open, try locking and unlocking to make sure the lock bolt slides properly.
If the locking finger slides correctly, check that the flap is correctly positioned in relation to the movement of the
locking finger.
Check the condition and connection of the fuel filler flap lock connector.
Check for the earth on both connections of the flap lock connector.
Check while:
Locking, for earth on connection 20BH of component 844 and for + 12 V on connection 20BC of component 844.
Unlocking, for earth on connection 20BC of component 844 and for + 12 V on connection 20BH of component 844.
If correct, replace the fuel filler flap lock.
Check the insulation and continuity of the following connections:
●Connection code 20BH.
●Connection code 20BC.
Between components 844 and 645.
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 Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP31 /UCH_V48_ALP31/UCH_V4C_ALP31/
UCH_V4D_ALP31/UCH_V4F_ALP31/UCH_V50_ALP31

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 355
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 355V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP34 Fault opening the boot in hands-free mode
NOTESFirst carry out a function fault finding check.
Vehicle locked.
Test with the other card.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Check that status ET061 Open tailgate request becomes PRESENT after pressing the tailgate opening button.
If not, apply the fault finding procedures for this status.
When the tailgate unlocking button is pressed, if the card is present and recognised, the direction indicator lights
should flash to indicate that the tailgate is being unlocked.
NOYES
Check the condition and connection of the tailgate lock connector.
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.
Check for earth on connection MZ of component 1322.
Check, when pressing on the opening button, for + 12 V on connection 20S of component 1322.
If correct, replace the tailgate lock.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP34 /UCH_V48_ALP34/UCH_V4C_ALP34/
UCH_V4D_ALP34/UCH_V4F_ALP34/UCH_V50_ALP34

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 357
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 357V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP34
CONTINUED 2
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.
Check that status ET061 Open tailgate request becomes PRESENT after pressing the tailgate opening button.
If not correct, use the fault finding procedure associated with this status.
Check, using status ET050 Opening rear screen that the tailgate is not considered OPEN.
If not, apply the fault finding procedures for this status.
Check the condition and connection of the boot lock connector.
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.
Check for earth on connection MZ of component 1322.
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.
Check, when pressing on the opening button, for + 12 V on connection 20S of component 1322.
If correct, replace the tailgate lock.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 358
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 358V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP35 Fault opening the rear screen in hands-free mode
NOTESFirst carry out a function fault finding check.
Vehicle locked.
Test with the other card.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Make sure status ET062 Open rear screen request becomes PRESENT when the tailgate opening button is
pressed.
If not, apply the fault finding procedures for this status.
When the rear screen opening button is pressed, if the card is present and recognised, the direction indicator lights
should flash to indicate that the boot is being unlocked.
NOYES
Check the connection and condition of the rear screen lock connector.
Repair if necessary.
Check for earth on connection MZ of component 1322.
Repair if necessary.
Check, when pressing on the opening button, for + 12 V on connection 20S of component 1322.
If correct, replace the rear screen lock.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP35 /UCH_V48_ALP35/UCH_V4C_ALP35/
UCH_V4D_ALP35/UCH_V4F_ALP35/UCH_V50_ALP35

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 360
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 360V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP35
CONTINUED 2
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.
Make sure status ET061 Open rear screen request becomes PRESENT when the tailgate opening button is
pressed.
If not correct, use the fault finding procedure associated with this status.
Check, using status ET050 Opening rear screen that the tailgate is not considered OPEN.
If not, apply the fault finding procedures for this status.
Check the connection and condition of the rear screen lock connector.
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.
Check for earth on connection MZ of component 1322.
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.
Check, when pressing on the opening button, for + 12 V on connection 20S of component 1322.
If correct, replace the boot lock.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.