2008 RENAULT SCENIC Passenger Comparment Connection Unit Workshop Manual

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-81
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-81V9 MR-372-J84-87B000$301.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
DF011
CONTINUED
Check the condition and connection of the PE2 connector of the UCH (tabs bent, broken, oxidised, etc.).
If the connector is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check the continuity and insulation of the following connection:
●Connection code 14S between components 645 and 1415.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.
2.DEF
NOTESNone.
Replace the sensor.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-82
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-82V9 MR-372-J84-87B000$301.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
DF012
PRESENT
OR
STOREDRIGHT-HAND DIRECTION INDICATOR CIRCUIT
CO.0: Open circuit or short circuit to earth
1.DEF: Bulbs not working or open circuit
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault appears after action on the right-hand direction indicator control stalk, apply
this fault finding procedure.
Special note:
The fault becomes stored after changing a bulb.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Check the bulbs.
Replace them, if necessary.
Check the condition and connection of the right-hand headlight connectors of the right-hand indicator
repeater and the rear right-hand light.
If the connector is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check for earth on components 226 and 267.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check for earth on connection MAQ of component 172.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
With the command running, check for + 12 V on connection 64D of components 226 and 267.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check the condition and connection of connector PP3 and connector PP1 on the UCH.
If the connector is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check the insulation and continuity of the following connection:
●Connection code 64D, between components 645 and 172.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If correct, check the connection between the UCH and front and rear lights (see wiring diagram), check the bulbs
again and if still not correct, replace the rear lights(s).
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF012 /UCH_V48_DF012/UCH_V4C_DF012/
UCH_V4D_DF012/UCH_V4F_DF012/UCH_V50_DF012

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-83
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-83V9 MR-372-J84-87B000$301.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
DF013
PRESENT
OR
STOREDLEFT-HAND DIRECTION INDICATOR CIRCUIT
CO.0: Open circuit or short circuit to earth
1.DEF: Bulbs not working or open circuit
NOTESConditions for applying the fault finding procedure to a stored fault:
If the fault appears after action on the left-hand direction indicator control stalk, then
apply this fault finding procedure.
Special note:
The fault becomes stored after changing a bulb.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Check the bulbs.
Replace them, if necessary.
Check the condition and connection of the left-hand headlight connector, the left-hand repeater and the rear
left-hand light.
If the connector is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check for earth on components 227 and 268.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check for earth on connection MZ of component 173.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
With the command running, check for + 12 V on connection 64C of components 227 and 268.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check the condition and connection of connector PP3 and connector PP2 on the UCH.
If the connector is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check the insulation and continuity of the following connection:
●Connection code 64C between components 645 and 173.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If correct, check the connection between the UCH and front and rear lights (see wiring diagram), check the bulbs
again and if still not correct, replace the rear lights(s).
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF013 /UCH_V48_DF013/UCH_V4C_DF013/
UCH_V4D_DF013/UCH_V4F_DF013/UCH_V50_DF013

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-84
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-84V9 MR-372-J84-87B000$301.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
DF014
PRESENT
OR
STOREDCARD READER CIRCUIT
CC.0: Short circuit to earth
CO.0: Open circuit or short circuit to earth
CC.1: Short circuit to + 12 V
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
Insert the card into the card reader, switch on and switch off the engine leaving the
card in the card reader. Carry out fault finding on the card reader circuit with the card
in the card reader (after the engine is switched off, the card reader is supplied and
controlled for 20 min).
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
CC.0
NOTESNone.
Check the condition and connection of the card reader connector (tabs bent, broken, oxidised, etc.).
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 the condition and connection of the PE2 and PE1 connectors of the UCH (tabs bent, broken, oxidised,
etc.).
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.
Ensure the continuity and insulation from earth of the following connections:
●Connection code 26BG,
●Connection code 26BD,
●Connection code 26BH.
Between components 645 and 1082.
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.
Using the oscilloscope, check for a square pulse signal on connection 26BH of the card reader connector:
Connect the oscilloscope between connection 26BH of the connector and a bodywork earth.
Set the oscilloscope as: Calibration at 5 V/division
Time base 100 ms/division
Check for a square pulse signal from the UCH on connection 26BH of the card reader connector.
If there is no signal, replace the UCH.
If there is a signal, replace the card reader.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF014 /UCH_V48_DF014/UCH_V4C_DF014/
UCH_V4D_DF014/UCH_V4F_DF014/UCH_V50_DF014

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-85
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-85V9 MR-372-J84-87B000$301.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
DF014
CONTINUED 1
CO.0
NOTESNone.
Check the condition and connection of the card reader connector (tabs bent, broken, oxidised, etc.).
If the connector is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check the condition and connection of the PE2 and PE1 connectors of the UCH (tabs bent, broken, oxidised,
etc.).
If the connector is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check for + 12 V on connection 26BH of the card reader.
Check for an earth on connection 26BK of the card reader.
If the 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.
Ensure the continuity and insulation from earth of the following connections:
●Connection code 26BG,
●Connection code 26BD,
●Connection code 26BH,
●Connection code 26BK.
Between components 645 and 1082.
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.
Replace the card reader if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-86
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-86V9 MR-372-J84-87B000$301.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
DF014
CONTINUED 2
CC.1
NOTESNone.
Check the condition and connection of the card reader connector (tabs bent, broken, oxidised, etc.).
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 the condition and connection of the PE2 and PE1 connectors of the UCH (tabs bent, broken, oxidised,
etc.).
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 an earth on connection 26BK of the card reader.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check the insulation against + 12 V on the following connections:
●Connection code 26BG,
●Connection code 26BD,
●Connection code 26BK.
Between components 645 and 1082.
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.
Replace the card reader if necessary.
If the fault is still present, contact the Techline.
1.DEF
NOTESNone.
Replace the card reader if necessary.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-87
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-87V9 MR-372-J84-87B000$301.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
DF015
PRESENT
OR
STOREDOPTICAL SENSOR CIRCUIT
CC.0: Short circuit to earth
NOTESConditions for applying the fault finding procedure to a stored fault:
Lock the vehicle and place your hand in each handle.
If the fault appears, carry out this fault finding procedure.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Check that ET054 Optical sensors supplied is YES. If status ET054 remains NO, consult the interpretation of
status ET054.
Check the statuses of the sensors to determine which sensor is in short circuit: without a hand being placed inside
the handles, the statuses must be INACTIVE.
ET055 Driver's side optical sensor,
ET056 Driver's rear optical sensor,
ET057 Front/rear passenger optical sensor.
If one of the statuses remains ACTIVE, disconnect the faulty sensor(s): if, after disconnection, the status returns
to INACTIVE, replace the faulty sensor.
If a status remains INACTIVE after placing a hand inside the handle:
Check for + 12 V on connection 26BH of the sensor(s).
If the connector is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check the insulation and continuity of the following connection:
●Connection code 26P between components 645 and 1084.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check the insulation and continuity of the following connection:
●Connection code 26P between components 645 and 1086.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF015 /UCH_V48_DF015/UCH_V4C_DF015/
UCH_V4D_DF015/UCH_V4F_DF015/UCH_V50_DF015

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-88
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
87B
87B-88V9 MR-372-J84-87B000$301.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
DF015
CONTINUED
Check the insulation and the continuity of the following connections:
●Connection code 26P between components 645 and 1083.
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check the insulation and the continuity of the following connections:
●Connection code 26P between components 645 and 1085,
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the connections are correct and the power supply is present, then replace the sensor concerned.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.