check engine RENAULT SCENIC 2010 J95 / 3.G Engine Compartment Connection Unit Owner's Manual

87G - 28
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87G
V6 MR-372-J84-87G000$660_eng.mif
UPC
Vdiag No.: 44
ET002
WINDSCREEN WIPER PROTECTION
NOTESBefore starting, check the operation of the windscreen wiper motor by running
commands AC005 Windscreen wiper at low speed and AC006 Windscreen wiper
at high speedand then check the park position using command AC012 Windscreen
wiper park position.
These statuses are listed in the order of severity or persistance of incorrect wiper
operation.
–if the status is INACTIVE, the wiper function is normal.
–If the status is LOW SPEED, the UPC has detected an abnormal wiper operation on
the higher speed setting for more than 6 seconds (the wiper has stuck or is blocked);
windscreen wiping is therefore forced to operate on the lower speed setting when
the higher speed setting is requested,
–If the status is INTERMITTENT, the wiper function is stopped for 10 seconds
following the detection and persistence of the fault (restrained or blocked),
–If the status is BLOCKED, wiping stops 30 seconds after the malfunction has lasted
for more than 2 minutes.
The status returns to INACTIVE, once the UCH requests a new wiping instruction (by
following the movement of the wiper stalk or by request from the rain sensor).
Make sure that nothing is mechanically blocking movement of the wiper blades (blades stuck, condition and
assembly of the wiper mechanism linkage and no object interfering with the motion of the device).
Check that the wiper mechanism is not seized.
Repair if necessary.
Check the status and the connection of connectors PPH2 and PEH on the UPC and of the windscreen wiper
motor.
Repair if necessary.

87G - 29
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87G
V6 MR-372-J84-87G000$660_eng.mif
UPC
Vdiag No.: 44
ET002
(continued)
Check the insulation against earth and the continuity of the connections:
UPC connector PEH track 6 Track 2 of the windscreen wiper motor connector
UPC PPH2 connector track 1 Track 5 of the windscreen wiper motor connector
UPC connector PPH2 track 2 Track 4 of the windscreen wiper motor connector
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any other possible faults.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.

87G - 30
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87G
V6 MR-372-J84-87G000$660_eng.mif
UPC
Vdiag No.: 44
Manual gearbox ET004
REVERSE GEAR ENGAGED
NOTESCheck, and if necessary, replace fuse 5C on the UPC.
Check the status and the connection of the reverse gear switch connector and connector PPM2 on the UPC.
Repair if necessary.
With the ignition on and reverse gear selected, check the presence of +12 V on track 9 of connector PPM2.
If there is a fault, check the insulation against earth and continuity of the connections:
UPC connector PPM2 track 9 Track 1 (track 3 on the ND0 gearbox) of the switch
UPC connector PPM2 track 6 Track 2 (track 1 on gearbox ND0) of the switch
Repair if necessary.
With reverse gear selected, check the continuity between tracks 1 and 2 (or tracks 1 and 3 on gearbox NDO)
of the switch.
Replace the reverse gear switch if necessary.
If the fault is still present, contact the Techline.

87G - 31
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87G
V6 MR-372-J84-87G000$660_eng.mif
UPC
Vdiag No.: 44
AUTOMATIC GEARBOX ET004
(continued)
Check the status and the connection of the multifunction switch connector and connector PPM2 on the UPC.
Repair if necessary.
With the ignition on and reverse gear selected, check the presence of +12 V on track 9 of connector PPM2.
If there is a fault, check the insulation against earth and the continuity of the connections:
UPC connector PPM2 track 9 Track 1 of the multifunction switch
UPC connector PPM2 track 6 Track 2 of the multifunction switch
Repair if necessary.
With reverse gear engaged, check the continuity of tracks 1 and 2 of the switch.
Replace the multifunction switch if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any other possible faults.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.

87G - 32
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87G
V6 MR-372-J84-87G000$660_eng.mif
UPC
Vdiag No.: 44
ET005
POSITION OF GEAR LEVER IN MANUAL GEARBOX
NOTESCheck, and if necessary, replace fuse "5C" on the UPC.
Applicable on vehicles fitted with a manual gearbox only.
Check the status and the connection of the neutral switch connector and connectors PPM2 and PEM on the
UPC.
Repair if necessary.
With the ignition on and in neutral, check the presence of +12 V on track 6 of connector PEM. If there is a fault,
check the insulation against earth and the continuity of the connection between the switch and track 6 of
connector PEM on the UPC.
Check the operation of the switch:
There is continuity between tracks 1 and 2 of the switch when the gearbox is in neutral.
There is an open circuit between tracks 1 and 2 of the switch when a gear is selected.
If faulty, replace the switch.
With the ignition on, check the presence of +12 V on track 2 (track 1 on gearbox ND0) of the neutral switch
connector.
If there is a fault, check the insulation against earth and the continuity of the connection between the switch
and track 6 of connector PPM2 on the UPC.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any other possible faults.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.

87G - 33
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87G
V6 MR-372-J84-87G000$660_eng.mif
UPC
Vdiag No.: 44
ET009
OIL PRESSURE CONTACT
NOTESCLOSED engine stopped, OPEN engine running.
Check the status and the connection of connectors PEM on the UPC and the oil pressure sensor.
Repair if necessary.
Make sure that the sensor is securely mounted on the engine.
Check the insulation against +12 V and the continuity of the connection between:
UPC connector PEM track 12 Track 1 pressure sensor
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any other possible faults.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.

87G - 34
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87G
V6 MR-372-J84-87G000$660_eng.mif
UPC
Vdiag No.: 44
ET010
CONDITIONS FOR STARTING THE ENGINE SATISFIED
NOTESNo particular instructions.
In the Keyless vehicle function, check that the starting conditions are met.
The UPC participates in the engine start function by managing the switches on the gearbox.
Check the operation of the gearbox switches using statuses ET004 Reverse gear selected and ET005
Manual gearbox gear lever position then run fault finding on UCH start and engine management functions.
If the conditions have been satisfied and the starter does not work, refer to ALP 2.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any other possible faults.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.

87G - 35
ENGINE COMPARTMENT CONNECTION UNIT
87G
V6 MR-372-J84-87G000$726_eng.mif
UPC
Vdiag No.: 44
Fault finding - Interpretation of parameters
PR010
ALTERNATOR CHARGE
NOTESCheck in the configuration readings that the alternator type has been configured
correctly.
When the engine has stopped, the value must be constant and greater than 98 %.
With the engine running, the value varies according to the electricity consumption. The
value must not be constant.
Carry out fault finding on the charging circuit.
Disconnect the 2 track connector from the alternator.
With the ignition on, check the presence of + 12 V on track 2 of the alternator.
With the ignition off, check the presence of a voltage below 6 V on track 2 of the alternator.
Repair if necessary.
AFTER REPAIRDeal with any other possible faults.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
MR-372-J84-87G000$726_eng.mif

87G - 36
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands
87G
V6 MR-372-J84-87G000$792_eng.mif
UPC
Vdiag No.: 44ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands
Without xenon lights AC001
MAIN BEAM HEADLIGHTS
NOTESCheck:
–the status and the connection of fuses 8A and 8B on the UPC,
–the status of the bulbs.
Replace them, if necessary.
Check the status and the connection of connector PPA and the fuses on the UPC.
Repair if necessary.
Check the condition and connection of the headlight connectors.
Repair if necessary.
Check the presence of earth on the connection R9 and then on track 1 of the headlight connector.
Repair if necessary.
Check the presence of +12 V on track 4 of the headlights when these are controlled by command AC001.
If everything is fine, replace the bulbs.
If there is a problem, check the insulation against earth and the continuity between the connections:
UPC connector PPA track 3 Left headlight track 4
UPC connector PPA track 4 Right headlight track 4
Repair if necessary.
If the fault is still present, contact the Techline.
MR-372-J84-87G000$792_eng.mif

87G - 37
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands
87G
V6 MR-372-J84-87G000$792_eng.mif
UPC
Vdiag No.: 44
With xenon lights AC001
(continued)
Check the status and the connection of connector PPA and the fuses on the UPC.
Repair if necessary.
Check the condition and connection of the headlight connectors.
Repair if necessary.
Check the presence of earth on connection R9 then on tracks 4 and 10 of the headlights.
Repair if necessary.
Check the presence of +12 V on track 5 (for Mégane vehicles) or on track 4 (for Scénic type vehicles) for the
headlights when controlled by command AC001.
If everything is fine, run the fault finding procedure (see 80C, Discharge bulbs).
If there is a problem, check the insulation against earth and the continuity of the connections:
UPC connector PPA track 3 Track 5 or track 4 (depending on vehicle type) for the left-hand
headlight
UPC connector PPA track 4 Track 5 or track 4 (depending on vehicle type) right-hand
headlight
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any other possible faults.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.