Page 35 of 94

ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-35V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF018
CONTINUED
CC.0
NOTESSpecial note:
To display this fault as present or stored, run the command
AC016 Electrical supply circuit test.
Use Wiring Diagrams Technical Note for Mégane II or
Scénic II.
Check the conformity of the fuse F6 (10A) for the Protection and Switching Unit.
Check the insulation, continuity and the absence of interference resistance on the following connection:
–RPG between components 1337 and 227.
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.
AFTER REPAIRRun command AC016 "Electrical supply circuits test".
Erase the faults from the computer memory, switch the + after ignition supply off and
back on again and run another check using the diagnostic tool.
Page 37 of 94

ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-37V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF019
CONTINUED
CC.0
NOTESSpecial note:
To display this fault as present or stored, run the command
AC016 Electrical supply circuit test.
Use Wiring Diagrams Technical Note for Mégane II or
Scénic II.
Check the conformity of the fuse F7 (10A) for the Protection and Switching Unit.
Check the insulation, continuity and the absence of interference resistance on the following connection:
–RPD between components 1337 and 226.
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.
AFTER REPAIRRun command AC016 "Electrical supply circuits test".
Erase the faults from the computer memory, switch the + after ignition supply off and
back on again and run another check using the diagnostic tool.
Page 39 of 94

ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-39V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF020
CONTINUED
CC.0
NOTESTo display this fault as present or stored, run the command
AC016 Electrical supply circuit test.
Use Wiring Diagrams Technical Note for Mégane II or
Scénic II.
Check the conformity of the fuse F5 (20A) for the Protection and Switching Unit.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–8E between components 1337 and 177,
–8F between components 1337 and 176.
If the connection or connections are faulty and if 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 REPAIRRun command AC016 "Electrical supply circuits test".
Erase the faults from the computer memory, switch the + after ignition supply off and
back on again and run another check using the diagnostic tool.
Page 40 of 94

ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-40V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF021
PRESENT
OR
STOREDREVERSING LIGHT(S) CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
CC.0
NOTESSpecial note:
To display this fault as present or stored, run the command
AC016 Electrical supply circuit test.
Use Wiring Diagrams Technical Note for Mégane II or
Scénic II.
Check the conformity of the fuse F19 (10A) for the Protection and Switching Unit.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–H66P between components 1337 and 173,
–H66P between components 1337 and 172.
If the connection or connections are faulty and if 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 REPAIRRun command AC016 "Electrical supply circuits test".
Erase the faults from the computer memory, switch the + after ignition supply off and
back on again and run another check using the diagnostic tool.
USM_V48_DF021/USM_V4C_DF021
Page 42 of 94
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-42V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF022
CONTINUED
CC.0
NOTESTo display this fault as present or stored, run the command
AC016 Electrical supply circuit test.
Check the conformity of the fuse F23 (30A) for the Protection and Switching Unit.
Check the insulation, continuity and the absence of interference resistance on the following connection:
–15LP between components 1337 and 200.
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.
AFTER REPAIRRun command AC016 "Electrical supply circuits test".
Erase the faults from the computer memory, switch the + after ignition supply off and
back on again and run another check using the diagnostic tool.
Page 43 of 94

ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-43V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF023
PRESENT
OR
STOREDWINDSCREEN WIPER CIRCUIT
CC.0: Short circuit to earth
CC.0
NOTESSpecial note:
To display this fault as present or stored, run the command
AC016 Electrical supply circuit test.
Use Wiring Diagrams Technical Note for Mégane II or
Scénic II.
Check the conformity of the fuse F9 (25A) for the Protection and Switching Unit.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–14L between components 1337 and 212,
–14K between components 1337 and 212.
If the connection or connections are faulty and if 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 REPAIRRun command AC016 "Electrical supply circuits test".
Erase the faults from the computer memory, switch the + after ignition supply off and
back on again and run another check using the diagnostic tool.
USM_V48_DF023/USM_V4C_DF023
Page 44 of 94

ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-44V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF024
PRESENT
OR
STOREDGAS COMPUTER SUPPLY
CO: Open circuit
CC.0: Short circuit to earth
CC.0
NOTESSpecial note:
To display this fault as present or stored, run the command
AC016 Electrical supply circuit test.
Use Wiring Diagrams Technical Note for Mégane II or
Scénic II.
Check the conformity of the fuse F15 (10A) for the Protection and Switching Unit.
Check the insulation, continuity and the absence of interference resistance on the following connection:
–AP31 between components 1337 and 997.
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.
AFTER REPAIRRun command AC016 "Electrical supply circuits test".
Erase the faults from the computer memory, switch the + after ignition supply off and
back on again and run another check using the diagnostic tool.
USM_V48_DF024/USM_V4C_DF024
Page 45 of 94

ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-45V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF025
PRESENT
OR
STOREDELECTRIC POWER ASSISTED STEERING/AIRBAG SUPPLY
CC.0: Short circuit to earth
CC.0
NOTESTo display this fault as present or stored, run the command
AC016 Electrical supply circuit test.
Use Wiring Diagrams Technical Note for Mégane II or
Scénic II.
Check the conformity of the fuse F10 (5A) for the Protection and Switching Unit.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–AP44 between components 1337 and 1232,
–AP44, between components 1337 and 756.
If the connection or connections are faulty and if 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 REPAIRRun command AC016 "Electrical supply circuits test".
Erase the faults from the computer memory, switch the + after ignition supply off and
back on again and run another check using the diagnostic tool.
USM_V48_DF025/USM_V4C_DF025