2008 RENAULT SCENIC Passenger Comparment Connection Unit Workshop Manual

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 281
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 281V9 MR-372-J84-87B000$817.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
AC031
CONTINUED 2
Check the condition and connection of headlight washer 2 relay.
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 + 12 V on connections 39H and BP32 of component 1338.
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.
With the command running, check for earth on connection 39H of component 1338.
Is there an earth?
YES NO
Check the condition and connection of connector PE3 on the UCH.
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 insulation and continuity of the following connection:
●Connection code 39H between components 645 and 1338.
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 Techline.
Check the continuity and insulation of the following connection:
●Connection code 39C between components 219 and 1338.
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 everything is OK, replace the relay.
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 commands87B
87B - 282
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 282V9 MR-372-J84-87B000$817.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
AC031
CONTINUED 3
Glovebox locking
If after command AC031, the glovebox does not unlock:
Check for + 12 V on connection 20BL of component 1490 during command AC031 Headlight washer 2 relay.
If there is no 12 V, check the following connection:
●Connection code 20BL between components 645 and 1490.
If there is + 12 V, check the following connection:
●Connection code 20BC between components 645 and 1490.
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.
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 commands87B
87B - 283
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 283V9 MR-372-J84-87B000$817.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
AC032
DRIVER'S SIDE EXTERNAL AERIAL TEST
NOTESBefore performing this command, it is essential to perform command AC037
Transmitter aerial diagnostic to ensure there is no aerial fault.
There must be no present or stored faults.
This command is for checking the hands-free access zones around the vehicle and
functions even if the hands-free card does not belong to the vehicle.
Special note:
This command is for testing correct operation of the driver-side external aerials.
This command takes 1 minute.
View the flashing of the card reader.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Front door
Check the condition and connection of the aerial connector (bent, broken tabs, 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 PE3 connector of the UCH (tabs bent, broken, 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 insulation and continuity of the following connections to + 12 V and to earth:
●Connection code 26AA.
●Connection code 26AB between components 645 and 1374.
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 another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 284
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 284V9 MR-372-J84-87B000$817.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
AC032
CONTINUED
Rear door if LC122 "REAR ACCESS AERIAL" = "WITH"
Check the condition and connection of the aerial connector (bent, broken tabs, 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 PE3 connector of the UCH (tabs bent, broken, 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 insulation and continuity of the following connections:
●Connection code 26AG.
●Connection code 26AH
Between components 645 and 1376.
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 aerial if necessary.
If the fault is still present, contact 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 commands87B
87B - 285
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 285V9 MR-372-J84-87B000$817.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
AC033
PASSENGER SIDE EXTERNAL AERIAL TEST
NOTESBefore performing this command, it is essential to perform command AC037
Transmitter aerial diagnostic to ensure there is no aerial fault.
There must be no present or stored faults.
This command is for checking the hands-free access zones around the vehicle and
functions even if the hands-free card does not belong to the vehicle.
Special note:
This command is for testing correct operation of the passenger-side external aerials.
If the range exceeds 1.50 m, check that there is no short circuit to earth on the aerials.
This command takes 1 minute.
View the flashing of the card reader.
Front door
Check the condition and connection of the aerial connector (bent, broken tabs, 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 PE3 connector of the UCH (tabs bent, broken, 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 insulation and continuity of the following connections to + 12 V and to earth:
●Connection code 26AC.
●Connection code 26AD between components 645 and 1375.
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 another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 286
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 286V9 MR-372-J84-87B000$817.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
AC033
CONTINUED
Rear door if LC122 "REAR ACCESS AERIAL" = "WITH"
Check the condition and connection of the aerial connector (bent, broken tabs, 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 PE3 connector of the UCH (tabs bent, broken, 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 insulation and continuity of the following connections to + 12 V and to earth:
●Connection code 26AK.
●Connection code 26AL between components 645 and 1377.
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 aerial if necessary.
If the fault is still present, contact 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 commands87B
87B - 287
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 287V9 MR-372-J84-87B000$817.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
AC034
BOOT EXTERNAL AERIAL TEST
NOTESBefore performing this command, it is essential to perform command AC037
Transmitter aerial diagnostic to ensure there is no aerial fault.
There must be no present or stored faults.
This command is for checking the hands-free boot access zone and works even if the
hands-free card does not belong to the vehicle.
Special note:
This command is for testing correct operation of the external aerial on the boot side.
If the range exceeds 1.50 m, check that there is no short circuit to the aerial earth.
This command takes 1 minute.
View the flashing of the card reader.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Check the condition and connection of the aerial connector (bent, broken tabs, 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 PE3 connector of the UCH (tabs bent, broken, 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 insulation and continuity of the following connections to + 12 V and to earth:
●Connection code 26AM.
●Connection code 26AN between components 645 and 1378.
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 another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 288
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 288V9 MR-372-J84-87B000$817.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
AC036
INTERNAL AERIAL TESTING
NOTESBefore performing this command, it is essential to perform command AC037
Transmitter aerial diagnostic to ensure there is no aerial fault.
There must be no present or stored faults.
This command is for checking the hands-free access zones around the vehicle and
functions even if the hands-free card does not belong to the vehicle.
Special note:
This command is for testing correct operation of the internal aerials.
This command takes 1 minute.
View the flashing of the card reader.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
FRONT INTERNAL AERIAL
Check the condition and connection of the aerial connector (bent, broken tabs, 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 PE3 connector of the UCH (tabs bent, broken, 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 insulation and continuity of the following connections to + 12 V and to earth:
●Connection code 26AT.
●Connection code 26AU between components 645 and 1396.
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 aerial if necessary.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.