ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-34V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF018
PRESENT
OR
STOREDLEFT-HAND MAIN BEAM HEADLIGHT CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
CO
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 that the left-hand main beam headlight bulb is sound.
Repair if necessary.
Check the condition and connection of the connector for the left-hand headlight, component code 227
(tabs bent, broken, oxidised).
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
Check that the earth, component code MAS for the left-hand headlight connector, component code 227 is
perfect.
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 the 8-track connector AN for the Protection and Switching Unit,
component code 1337 (tabs bent, broken, oxidised).
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
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.
Check the fitting and switch on the left-hand headlight.
Repair if necessary or replace the light if it is faulty.
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_DF018/USM_V4C_DF018
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-36V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF019
PRESENT
OR
STOREDRIGHT-HAND MAIN BEAM HEADLIGHT CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
CO
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 that the right-hand main beam headlight bulb is sound.
Repair if necessary.
Check the condition and connection of the connector for the right-hand headlight, component code 226
(tabs bent, broken, oxidised).
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
Check that the earth on connection code MAS for the right-hand headlight, component code 226 is perfect.
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 the 8-track connector AN for the Protection and Switching Unit,
component code 1337 (tabs bent, broken, oxidised).
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
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.
Check the fitting and switch on the right-hand headlight.
Repair if necessary or replace the light if it is faulty.
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_DF019/USM_V4C_DF019
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-38V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF020
PRESENT
OR
STOREDFRONT FOG LIGHT CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
CO
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 that the front fog light bulbs are sound.
Repair if necessary.
Check the condition and connection of the 2-track connectors for the front fog lights, component code 176 and
177 (tabs broken, bent or oxidised).
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
Check that the earth on connection code MAS for the front right-hand fog light, component code 176 is perfect.
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 that the earth on connection code MAS for the front left-hand fog light, component code 177 is perfect.
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 the 8-track connector AN for the Protection and Switching Unit,
component code 1337 (tabs bent, broken, oxidised).
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
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.
Check the fitting and switch for the front fog lights.
Repair if necessary or replace the light(s) if faulty.
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_DF020/USM_V4C_DF020
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G-41V7 MR-372-J84-87G050$330.mif
UPC
Vdiag No.: 48, 4C
DF022
PRESENT
OR
STOREDREAR SCREEN DE-ICER CIRCUIT
CO: Open circuit
CC.0: Short circuit to earth
CO
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 condition and connection of the heated rear screen, component code 200 (tabs bent, broken or
oxidised).
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
Check that the earth on connection code MZ or MAQ for the heated rear screen, component code 200 is
perfect.
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 the 6-track connector CM for the Protection and Switching Unit
(tabs bent, broken or oxidised).
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
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.
USM_V48_DF022/USM_V4C_DF022
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G - 52V7 MR-372-J84-87G050$385.mif
UPC
Vdiag No.: 48, 4C
DF033
PRESENT
OR
STOREDFAN ASSEMBLY SUPPLY CIRCUIT
CO : Open circuit
CC.0 : Short circuit to earth
CO
NOTESSpecial note:
To display this fault as present or stored, run command
AC016 Electrical supply circuits test.
Use Wiring Diagrams Technical Note for Mégane II or
Scénic II.
Check the condition and connection of the fan assembly 2-track black connector (tabs broken, bent or oxidised).
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
Check the condition and connection of the 6-track Protection and Switching Unit MM connector (tabs broken,
bent or oxidised).
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the connector.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–49R, between components 1337 and 188,
–49L, between components 1337 and 1014,
–49L, between components 1337 and 188.
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.
CC.0
NOTESTo display this fault as present or stored, run command
AC016 Electrical supply circuits test.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–49R, between components 1337 and 188,
–49L, between components 1337 and 1014,
–49L, between components 1337 and 188.
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 the Techline.
AFTER REPAIRRun command AC016 Electrical supply circuits test.
Clear the computer fault memory, switch the + after ignition supply off and back on, and
run another check with the diagnostic tool.
USM_V48_DF033/USM_V4C_DF033
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults87G
87G - 53V7 MR-372-J84-87G050$385.mif
UPC
Vdiag No.: 48, 4C
DF034
PRESENT
OR
STOREDALTERNATOR TYPE
1.DEF : Inconsistency
NOTESSpecial note:
After 10 minutes with the engine running, deal with fault DF007 UPC-alternator
connection first if it is present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present with the engine running.
Note the part number of the Protection and Switching Unit LC001, Configurations and programming.
Note the part number of the alternator (information found on the rear alternator face).
Contact the Techline.
AFTER REPAIRClear the computer fault memory, switch the + after ignition supply off and back on, and
run another check with the diagnostic tool.
USM_V48_DF034/USM_V4C_DF034
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87G
87G-58V7 MR-372-J84-87G050$440.mif
UPC
Vdiag No.: 48, 4C
FUNCTION: AIR CONDITIONING
SUB-FUNCTION: HEATING
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(fault reading and configuration checks).
Application conditions: engine stopped, + after ignition feed on.
FunctionParameter or Status
Check or ActionDisplay and Notes Fault finding
Alternator chargePR010:Alternator charge0 < X < 99.6%
With the engine running,
activate the heated rear
screen and check that the
value increases.In the event of a fault, consult
the interpretation of
parameter PR010.
Rear screen de-
icerAC011:Rear screen de-
icerThis command supplies
the rear screen and door
mirror heating resistors, if
fitted to the vehicle.
They should be warm. In the event of a fault, apply the
procedure for dealing with
command AC011.
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87G
87G-59V7 MR-372-J84-87G050$440.mif
UPC
Vdiag No.: 48, 4C
FUNCTION: AIR CONDITIONING
SUB-FUNCTION: COLD LOOP
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(fault reading and configuration checks).
Application conditions: engine stopped, + after ignition feed on.
FunctionParameter or Status
Check or ActionDisplay and Notes Fault finding
Compressor
controlAC008:Compressor
controlYou should be able to hear
the compressor clutch
(stops the motor running).In the event of a fault, apply the
procedure for dealing with
command AC008.
Fan assemblyAC009:Low-speed fan
assemblyThis command is used to
activate the fan assembly
at low speed.In the event of a fault, apply the
procedure for dealing with
command AC009.
AC010:High-speed fan
assemblyThis command is used to
activate the engine cooling
fan at high speed.In the event of a fault, apply the
procedure for dealing with
command AC010.
Low-speed
engine fan
assembly relay
controlET014:Low-speed
engine fan
assembly relay
controlINACTIVE
ACTIVEIn the event of a fault, consult
the interpretation for status
ET014.
High-speed
engine fan
assembly relay
controlET013:High-speed
engine fan
assembly relay
controlINACTIVE
ACTIVEIn the event of a fault, consult
the interpretation for status
ET013.