ECU RENAULT SCENIC 2010 J95 / 3.G Engine Compartment Connection Unit Workshop Manual
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Page 3 of 56
87G - 3
ENGINE COMPARTMENT CONNECTION UNIT
Fault finding - Introduction
87G
V6 MR-372-J84-87G000$066_eng.mif
UPC
Vdiag No.: 44
Faults
Faults are declared as either present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but have not been diagnosed within the current context).
The present or stored status of the fault should be taken into consideration when the diagnostic tool is used after
the + after ignition feed has been connected (without any of the system components being activated).
For a present fault, apply the procedure described in the Interpretation of faults section.
For a stored fault, note the faults displayed and apply the instructions in the Notes section.
If the fault is confirmed when the instructions in the Notes section are applied, the fault is present. Deal with the fault
If the fault is not confirmed, check:
–the electrical lines which correspond to the fault,
–the connectors on these lines (corrosion, bent pins, etc.),
–the resistance of the component detected as faulty,
–the condition of the wires (melted or split insulation, wear).
Conformity check
The aim of the conformity check is to check statuses and parameters that do not produce a fault display on the
diagnostic tool when they are inconsistent. Therefore, this phase is used to:
–carry out fault finding on faults that do not have a fault display, and which may correspond to a customer
complaint.
–check that the system is operating correctly and that there is no risk of a fault recurring after repair.
This section gives the fault finding procedures for statuses and parameters and the conditions for checking them.
If a status is not behaving normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding page.
Customer complaints - Fault finding chart
If the test with the diagnostic tool is OK but the customer complaint is still present, the fault should be dealt with by
customer complaints.
A summary of the overall procedure to follow is provided on the following
page in the form of a flow chart.
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.