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

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 305
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 305V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP5No side lights
(Lights without xenon bulb)
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 the bulbs.
Are the bulbs in good condition?
YES
Check the + 12 V supply between connections LPD
and MAS of component 226.
Check the + 12 V supply between connections LPG
and MAS of component 270.
Are the feeds correct?
NO
Check status ET081 Lighting stalk position.
Is the side lights request on side lights?
YES
Run fault finding on the Protection and Switching
Unit.
NOReplace the bulbs.
YESVerify that there is no corrosion on the
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.
NOApply interpretation of status ET081
Lighting stalk position.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP5/UCH_V48_ALP5/ UCH_V4C_ALP5/
UCH_V4D_ALP5 /UCH_V4F_ALP5/UCH_V50_ALP5

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 306
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 306V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP6NO DIPPED HEADLIGHTS
(Lights without xenon bulb)
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 the bulbs.
Are the bulbs in good condition?
YES
Check the + 12 V supply between connections RPG
and MAS of component 270.
Check the + 12 V supply between connections RPD
and MAS of component 270.
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.
Are the feeds correct?
NO
Check status ET081 Lighting stalk position.
Is the dipped beam headlight request on dipped
beam?
YES
Run fault finding on the Protection and Switching
Unit and check the dipped headlight F8C fuses
(Vdiag 44 UPC) and F3 and F4 fuses (Vdiag 48 or
above UPC) on the UPC.
NOReplace the bulbs.
YESVerify that there is no corrosion on the
connector.
Repair if necessary.
NOApply interpretation of status ET081
Lighting stalk position.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP6/UCH_V48_ALP6/ UCH_V4C_ALP6/
UCH_V4D_ALP6 /UCH_V4F_ALP6/UCH_V50_ALP6

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 307
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 307V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP7No main beam headlights
(Lights without xenon bulb)
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 the bulbs.
Are the bulbs in good condition?
YES
Check the + 12 V supply on connection RPD of
component 226 and on connection RPG of
component 227.
Check for earth on connection MAS of
components 226 and 227.
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.
Are the feeds correct?
NO
Check status ET081 Lighting stalk position.
Does the side light request occur on main beam?
YES
Run fault finding on the Protection and Switching
Unit.
Check the F8A and F8B fuses (Vdiag 44 UPC) and
F6 and F7 fuses (Vdiag 48 or above UPC).
NOReplace the bulbs.
YESVerify that there is no corrosion on the
connector.
Repair if necessary.
NOApply interpretation of status ET081
Lighting stalk position.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP7/UCH_V48_ALP7/ UCH_V4C_ALP7/
UCH_V4D_ALP7 /UCH_V4F_ALP7/UCH_V50_ALP7

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 312
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 312V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP12 No windscreen wiper
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 the condition of the windscreen wiper motor connections (with battery disconnected) and the UPC
connections.
Check the condition of the connections and the absence of interference resistance on the following
connections:
●Connection code 14L.
●Connection code 14K.
●Connection code 14M between components 645 and 1337.
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.
Check for an earth on connection MAS of component 212.
If the connection is 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.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP12 /UCH_V48_ALP12/UCH_V4C_ALP12/
UCH_V4D_ALP12/UCH_V4F_ALP12/UCH_V50_ALP12

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 315
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 315V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP14No headlight washers
(Only if VDIAG 44 UPC)
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
Set the stalk to side lights and check whether status
ET081 Lighting stalk position is to Side lights.
YES
Check whether status ET078 Front windscreen
washer request is Present when the stalk is
operated.
YES
Run commands AC030 Headlight washer 1 relay
and AC031 Headlight washer 2 relay.
Can commands AC030 and AC031 be run?
YES
Check the condition of the pipes and nozzles. Repair
if necessary.
If the fault is still present, contact the Techline.
NOApply interpretation of status ET081
Lighting stalk position.
NOApply interpretation of status ET078
Windscreen washer request.
NOApply interpretation of commands AC030
Headlight washer 1 relay and AC031
Headlight washer 2 relay.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP14 /UCH_V48_ALP14/UCH_V4C_ALP14/
UCH_V4D_ALP14/UCH_V4F_ALP14/UCH_V50_ALP14

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 - 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 - 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 - 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 - 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.