overheating RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16C36 Workshop Manual

13B-23V9 MR-372-J84-13B450$050.mif
DIESEL INJECTION
Fault finding – Features13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Orange pre-postheating warning light
This warning light is used as an in-operation indicator lamp:
– Continuously lit under + after ignition feed: indicates preheating of the heater plugs.
It goes out when preheating is complete and the engine is able to start.
Orange "SERVICE" non-critical fault warning light (level 1)
This warning light is used to indicate a fault in the system:
– Continuously lit with the CHECK INJECTION message:
Indicates a level 1 fault (involving operation of the injection system in defect mode).
The driver should have the repairs carried out as soon as possible.
Temperature/red emergency STOP (level 2) warning light
This indicator light is used both as an in-operation indicator light and as a system fault warning light.
– Intermittently lit with the ENGINE OVERHEATING message:
Indicates that the coolant temperature is too high (the driver is free to stop the vehicle or not).
– Continuously lit with the INJECTION FAULT: STOP THE ENGINE message and an audible beep indicates a level
2 fault.
In that case, the vehicle must be stopped immediately (when traffic conditions allow).
The driver should carry out repairs as soon as possible.
European On Board Diagnostic excess pollution ORANGE warning light
Engine symbol with the CHECK EMISSION CONTROL message.
This warning light comes on if the system has one or more OBD faults.
This warning light is used to alert the driver to injection faults that could lead to excessive pollution, or if the EOBD
system (European On Board Diagnostic) has been deactivated.
The injection computer requests illumination of the OBD warning light for a present fault only after three successive
driving cycles.
The driver should have the repairs carried out as soon as possible.

13B-212V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET014FAN ASSEMBLY NO. 1 CHECK
STATUS DEFINITIONRUNNING: This status indicates that the fan assembly is engaged.
STOPPED: This status indicates that the fan assembly is not engaged.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system operation
programming.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
RUNNINGThe low-speed engine fan is supplied in three scenarios:
– the engine coolant temperature is greater than 89°C,
–the air conditioning is operating,
– the injection computer has system faults that could lead to the engine overheating.
When the low-speed fan assembly is supplied:
–status ET014 Fan assembly 1 check becomes RUNNING.
–status ET143 Low speed fan unit relay control becomes ACTIVE.
Conformity check with engine stopped and ignition on
STOPPEDThe low-speed fan assembly stops when:
– the engine coolant temperature is less than 89°C,
– the air conditioning is not switched on by the driver.
EDC16C36_V44_ET014/EDC16C36_V4C_ET014/EDC16C36_V48_ET014/EDC16C36_V50_ET014/EDC16C36_V54_ET014/
EDC16C36_V58_ET014
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-213V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET015FAN ASSEMBLY NO. 2 CHECK
STATUS DEFINITIONRUNNING: This status indicates that the fan assembly is engaged.
STOPPED: This status indicates that the fan assembly is not engaged.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system operation
programming.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
RUNNINGThe low-speed engine fan is supplied in three scenarios:
– the engine coolant temperature is greater than 89°C,
–the air conditioning is operating,
– the injection computer has system faults that could lead to the engine overheating.
When the low-speed fan assembly is supplied:
–status ET015 Fan assembly 2 check becomes RUNNING.
–status ET144 Low speed fan unit relay control becomes ACTIVE.
Conformity check with engine stopped and ignition on
STOPPEDThe low-speed fan assembly stops when:
– the engine coolant temperature is less than 89°C,
– the air conditioning is not switched on by the driver.
EDC16C36_V44_ET015/EDC16C36_V4C_ET015/EDC16C36_V48_ET015/EDC16C36_V50_ET015/EDC16C36_V54_ET015/
EDC16C36_V58_ET015
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-383
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP2 Starting difficult (or impossible)
NOTESBefore analysing this customer complaint, check that there are no faults, and the
conformity (or otherwise) of the parameters and statuses, using the diagnostic
tool.
If the customer complaint is not eliminated, perform the following checks.
Is it difficult or impossible to start the engine?
PART A:
Check the engine earths.
If the engine speed is less than 200 rpm, refer to Technical Note 6014A, Checking the charging circuit, Starter
fault finding, Starter.
If an engine speed of 200 rpm is achieved with starter motor in operation, PR055 Engine speed.
If the engine speed shown on CLIP is zero and the engine is running, check the resistance of the engine speed
sensor between the following connections:
– Connection code 3BG,
– Connection code 3BL,
of component 149.
Replace the sensor if the resistance is not between 200 Ω and 270 Ω at 20°C.
Check the continuity and insulation of the following connections:
– Connection code 3BG,
– Connection code 3BL,
between components 120 and 149.
If any of the connections are faulty and there is a repair method (see Technical Note 6015A, Electrical wiring
repair, Wiring: precautions for repairs), repair the wiring; otherwise replace the wiring.
Check the conformity of the engine earths (oxidation, tightness, etc.).
Check the mounting and condition (overheating) of the sensor.
Replace if necessary.
Check the synchronisation of the camshaft sensors and the engine speed sensors with the display of ET238
Synchronisation. If synchronisation is not active, refer to the checks described in DF195 Camshaft/engine
speed consistency.
Check the fuel circuit for leaks using test 3 Low pressure circuit check.
If test 3: Low pressure circuit check is correct.
PART
B
Impossible
Difficult
EDC16C36_V44_ALP02/EDC16C36_V4C_ALP02/EDC16C36_V48_ALP02/EDC16C36_V50_ALP02/EDC16C36_V54_ALP02/
EDC16C36_V58_ALP02EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-386
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP4 Poor performance
NOTESBefore analysing this customer complaint, check that there are no faults, and the
conformity (or otherwise) of the parameters and statuses, using the diagnostic
tool.
If the customer complaint is not eliminated, perform the following checks.
IMPORTANT
In the case of engine overheating to above 118°C, the computer deliberately limits the fuel flow (overheating
warning light lights up from 115°C).
Please observe the cleanliness guidelines and safety advice.
Is the poor performance accompanied by smoke?
Check the conformity of the fuel used by running test 11 Diesel fuel conformity check.
If the diesel fuel is not correct:
– Replace the diesel fuel.
– Change the diesel filter.
– Bleed the low and high pressure diesel circuit.
Test the high pressure fuel circuit:
Run the scenario SC035 High pressure fuel circuit fault finding (see Interpretation of commands).
Check that the injectors are correctly fitted (presence and conformity of the sealing washer).
Checking procedure:
– Take a straightedge approximately 40 cm long and place it on the 4 injectors. The straightedge should rest on
the 4 injectors.
– If 1 injector protrudes, remove the injector and check that the washer is correct.
– If one injector does not touch the straightedge (clearance of more than 1 mm), remove the injector and check
that the washer is present.
– Clean the injector wells and the injector, refit the injector with the correct sealing washer.
– The tightness seal and the condition of the inlet circuit: run test 4: Turbocharged air inlet circuit check.
– The condition of the air flowmeter, run test 5 Air flowmeter.
– The turbocharger, run the following tests:
– test 2: Air path at the turbocharger,
– test 6: Turbocharger control solenoid valve check,
– test 7: Turbocharger.
NOA
YES
EDC16C36_V44_ALP04/EDC16C36_V4C_ALP04/EDC16C36_V48_ALP04/EDC16C36_V50_ALP04/EDC16C36_V54_ALP04/
EDC16C36_V58_ALP04EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-388
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP5 Irregular engine operation
NOTESBefore analysing this customer complaint, check that there are no faults, and the
conformity (or otherwise) of the parameters and statuses, using the diagnostic
tool.
If the customer complaint is not eliminated, perform the following checks.
If the engine races during gear changes, if there is a floor carpet, check that this is not blocking the accelerator
pedal, the brake pedal and the clutch pedal, then check the conformity of the clutch switch and the conformity of
the accelerator pedal sensor when the pedal is released.
Measure the resistance of the engine speed sensor between the following connections:
– Connection code 3BG,
– Connection code 3BL,
of component 149.
Replace the sensor if the resistance is not 200 Ω to 270 Ω at +20°C
Check the continuity of the following connections:
– Connection code 3BG,
– Connection code 3BL,
between components120 and 149.
Check the conformity of the engine earths (oxidation, tightness, etc.).
Check the mounting and condition (overheating) of the sensor.
Replace if necessary.
Check the low pressure circuit, run test 3 Low pressure circuit check.
Apply the air flow test procedure (see Interpretation of statuses and Interpretation of parameters).
Check the turbocharger, apply the following tests:
– test 2: Air path at the turbocharger,
– test 6: Turbocharger control solenoid valve check,
– test 7: Turbocharger.
Test the high pressure fuel circuit:
Run scenario SC035 High pressure fuel circuit fault finding (see Interpretation of commands).
If the customer complaint is still present, contact Techline.
EDC16C36_V44_ALP05/EDC16C36_V4C_ALP05/EDC16C36_V48_ALP05/EDC16C36_V50_ALP05/EDC16C36_V54_ALP05/
EDC16C36_V58_ALP05EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58