sensor RENAULT SCENIC 2010 J95 / 3.G Engine Compartment Connection Unit Workshop Manual
[x] Cancel search | Manufacturer: RENAULT, Model Year: 2010, Model line: SCENIC, Model: RENAULT SCENIC 2010 J95 / 3.GPages: 56
Page 8 of 56
87G - 8
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - System operation
87G
V6 MR-372-J84-87G000$132_eng.mif
UPC
Vdiag No.: 44
Front wipers
The UPC receives the wiping requests from the UCH via the multiplex network.
The computer then controls the following requests:
–low or high speed windscreen wiper,
–windscreen wiper park position.
Lights
The UPC receives the lighting requests from the UCH via the multiplex network.
The computer then controls the following requests:
–side lights,
–dipped beam headlights,
–main beam headlights,
–front fog light.
Detecting the oil pressure
The UPC receives the signal from the oil pressure sensor and makes it available on the multiplex network.
2. UPC LEVELS
3 UPC levels can be fitted on vehicles:
–Entry level UPC,
–Top of the range UPC N2,
–Top of the range UPC N3.
Only the top of the range N2 and N3 UPCs are available as spare parts.
The N2 and N3 versions can be distinguished in the extent to which they control the high speed blower:
–on the N2, the UPC controls an external relay,
–on N3, the relay is integrated into the UPC.
Page 28 of 56
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.
Page 33 of 56
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.