coolant level RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Workshop Manual

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Pages: 273

Page 12 of 273

RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Workshop Manual DIESEL INJECTION
Fault finding – System operation13B
13B - 12V3 MR-372-J84-13B250$135.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
c) Hosted functions:
Air conditioning management assistance:
In the case

DIESEL INJECTION
Fault finding – System operation13B
13B - 12V3 MR-372-J84-13B250$135.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
c) Hosted functions:
Air conditioning management assistance:
In the case of vehicles with climate control, the EDC16 system has the option of deactivating the air conditioning via
the UCH, under certain conditions of use:
–when requested by the driver,
–when starting the engine,
–if the engine overheats (in order to reduce the power the engine has to supply),
–when the engine speed is kept at a very high level (to protect the compressor),
–during transitory phases (such as demands for high acceleration when overtaking, anti-stall and start-up) These
conditions are only taken into account when they do not occur repeatedly, to prevent instability in the system
(erratic deactivations),
–when certain faults appear.
Cold loop air conditioning management:
The air conditioning is the cold loop type and its management shared between several computers.
The injection computer is responsible for:
–authorising cold requests according to the refrigerant pressure, the engine coolant temperature and the engine
speed,
–calculating the power absorbed by the compressor (from the refrigerant pressure),
–requesting operation of the GMV, from the UPC, according to the vehicle speed, the refrigerant pressure and the
engine coolant temperature.
The driver requests the air conditioning to be switched on by means of the ventilation selector coupled to a switch.
The cold air request is authorised or denied depending on the pressure measured. If this pressure is outside the
operating limits, the cold loop program is not activated.
Management of the damper valve:
The damper valve currently has three functions:
–the valve closes in order to block the passage of air towards the cylinders to shut off the engine. The aim of this is
to stop the engine as quickly as possible and to reduce instabilities as the engine is switched off.
–"valving" function depending on the engine operation: the damper valve closes by a few % to create a ''venturi''
effect at the EGR valve passage section.
The aim of this is to accelerate the air flow of EGR gases and to reduce the emission of pollutants.

Page 14 of 273

RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Workshop Manual DIESEL INJECTION
Fault finding – System operation13B
13B - 14V3 MR-372-J84-13B250$135.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
Exhaust gas recirculation management
The exhaust gas recirculation syste

DIESEL INJECTION
Fault finding – System operation13B
13B - 14V3 MR-372-J84-13B250$135.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
Exhaust gas recirculation management
The exhaust gas recirculation system comprises a direct current EGR valve controlled by an H bridge in the
computer. This system has a built-in valve position feedback potentiometer.
The EGR valve is controlled in a closed loop on the change in the air flow measured by the flow sensor.
The potentiometer is used in the fault finding procedure for the EGR valve position.
Warning light management:
Instrument panel display
The computer manages the data display on the instrument panel relating to engine operation. This involves six
functions:
–the pre-postheating warning light,
–the coolant temperature warning light or warning message;
–the fault level 1 warning light (non-critical fault),
–the fault level 2 warning light (emergency stop),
–the OBD warning light (European On Board Diagnostic).
These five functions are represented by 4 or 5 warning lights and/or messages sent by the trip computer.
A 3 second visual inspection is carried out by the injection computer when ignition is switched on (automatic
procedure for test managed by the instrument panel).
Orange Pre-post heating/non-critical fault SERVICE warning light (level 1)
This light is used both as an in-operation indicator light and as a system fault indicator:
–Continuously lit with + after ignition feed:
Indicates preheating of the spark plugs.
–Continuous lighting accompanied by the message CHECK INJECTION or ELECTRONIC FAULT:
Indicates a level 1 fault (implies operation in injection system defect mode).
The driver should carry out repairs as soon as possible.
Temperature warning light/red EMERGENCY STOP (level 2)
This indicator light is used both as an in-operation indicator light and as a system fault warning light. Lights up for
3 seconds when the ignition is switched on (automatic test procedure managed by the instrument panel):
–Continuously lit or alternately lit with ENGINE OVERHEATING message:
Indicates engine overheating (the driver is free to choose whether or not to stop the vehicle).
–Continuously lit with the FAULTY INJECTION message:
Indicates a level 2 fault (In this case, the injection is automatically cut after a few seconds).
The driver should carry out repairs as soon as possible.
ORANGE OBD excess pollution warning light
An engine symbol accompanied by the message CHECK EMISSION CONTROL.
This warning light comes on if the system has one or more OBD faults.
This warning light is used to warn the driver of injection faults leading to excessive pollution or that the EOBD* system
has been deactivated.
The injection computer requests activation of the OBD warning light for a present fault only after three successive
driving cycles.
A 3 second visual inspection is carried out by the injection computer when ignition is switched on (automatic
procedure for test managed by the instrument panel).
*EOBD: Electronic on board diagnostics.

Page 26 of 273

RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Workshop Manual DIESEL INJECTION
Fault finding – Fault summary table13B
13B-26V3 MR-372-J84-13B250$270.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Fault summary table
WARNING LIGHT MAN

Page 28 of 273

RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Workshop Manual DIESEL INJECTION
Fault finding – Fault summary table13B
13B-28V3 MR-372-J84-13B250$270.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
Tool
faultDIAGNOSTIC
TOOL
DESCRIPTIONAssociated
DTCLEVEL 1 FAULT
W

Page 30 of 273

RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Workshop Manual DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-30V3 MR-372-J84-13B250$315.mif
DF001
PRESENT
OR
STOREDCOOLANT TEMPERATURE SENSOR CIRCUIT
CC.0 : Short circuit to earth
CO.1 : Short c

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-30V3 MR-372-J84-13B250$315.mif
DF001
PRESENT
OR
STOREDCOOLANT TEMPERATURE SENSOR CIRCUIT
CC.0 : Short circuit to earth
CO.1 : Short circuit or open circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present:
–when an attempt is made to start the engine,
–when the engine is running.
Special notes:
If the fault is present:
–the coolant temperature: PR064 Coolant temperature is fixed at 119˚C,
–the preheating phase is greater than 10 seconds,
–the low speed motor-driven fan assembly (GMV 1) is continuously supplied,
–if there is a fault with GMV 1, then start GMV 2 for vehicles with air conditioning.
–the level 1 warning light is lit,
–the OBD warning light will illuminate after three consecutive driving cycles (starting
+ 5 seconds + switching off the ignition and waiting 1 minute).
Use bornier Ele. 1681 or Ele. 1590 for all operations on the computer connectors.
Check the connections of the coolant temperature sensor 4-track connector.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the coolant temperature sensor between tracks 2 and 3 of its black connector.
Replace the sensor if its resistance is not approximately:
75780 ± 7000 Ω at - 40˚C
12460 ± 122 Ω at - 10˚C
2252 ± 112 Ω at 25˚C
811 ± 39 Ω at 50˚C
283 ± 8 Ω at 80˚C
115 ± 3 Ω at 110˚C
87 ± 2 Ω at 120˚C
Check the insulation, continuity and the absence of interference resistance on the following connections:
Injection computer brown 48-track connector B
track F2Track 3 coolant temperature sensor
Injection computer brown 48-track connector B
track H1Track 2 coolant temperature sensor
Repair if necessary.
If the fault is still present, replace the coolant temperature sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16
PROGRAM No.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16_V51_DF001

Page 102 of 273

RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Workshop Manual DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B -102V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF086
PRESENT
OR
STOREDCOOLANT PUMP RELAY CONTROL CIRCUIT
CO.0 :