2008 RENAULT SCENIC air condition

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 303
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 303V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP3 NO RIGHT-HAND DIRECTION INDICATOR
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
Check the bulbs.
Are the bulbs in good condition?
YES
Check the + 12 V supply and earth on the bulb
connectors (see interpretation of DF012 Right-hand
direction indicator circuit).
Is there a supply?
NO
Check status ET084 Right-hand direction
indicator request by actuating the control stalk.
Is status ET084 present?
YES
Perform command AC023 Right-hand direction
indicator.
Does the right-hand direction indicator come on?
YES
Check the UCH connectors.
If the fault is still present, contact the Techline.
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 ET084
Right-hand indicator request.
NOApply interpretation of command AC023
Right-hand direction indicator.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP3/UCH_V48_ALP3/ UCH_V4C_ALP3/
UCH_V4D_ALP3 /UCH_V4F_ALP3/UCH_V50_ALP3

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 304
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 304V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP4 No left-hand direction indicator
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
Check the bulbs.
Are the bulbs in good condition?
YES
Check the + 12 V supply and earth on the headlight
connectors (see interpretation of DF013 Left-hand
direction indicator circuit).
Is there a supply?
NO
Check status ET083 Left-hand direction indicator
request by moving the control stalk.
Is status ET083 present?
YES
Perform command AC022 Left-hand direction
indicator.
Does the left-hand direction indicator come on?
YES
Check the UCH connectors.
If the fault is still present, contact the Techline.
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 ET083 Left-
hand direction indicator request.
NOApply interpretation of command AC022
Left-hand direction indicator.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP4/UCH_V48_ALP4/ UCH_V4C_ALP4/
UCH_V4D_ALP4 /UCH_V4F_ALP4/UCH_V50_ALP4

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