2012 RENAULT SCENIC Engine And Peripherals EDC16CP33 Workshop Manual

13B-465V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
MT001
CONTINUED 6
Monitool no. 6 fault finding procedure:
–Apply Test 7 Variable geometry turbocharger control.
If the checks do not reveal any non-conformity and the fault is still present, replace the turbocharger. Attach a
screen copy of the Monitool results.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 44
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-466V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
MT001
CONTINUED 7
PHASE 3:
Preliminary test:
Engine speed between: 2480 rpm < X < 2520 rpm
Coolant temperature > 70°C
EGR valve feedback position < 1%
Interpretation:
If, during phase 3, there is no data outside of the maximum and minimum limits for each variable, then the air line
is correct and no component replacement is to be carried out. Check the fuel circuit or deal with present or stored
faults which are displayed on the diagnostic tool.
Note: the interpretation of faults during phase 3 should only be carried out in the following situation:
– The variables measured during phase 1 and 2 are correct, i.e. they are within the minimum and maximum
authorised limits. If this is not the case, apply the different Monitool fault finding procedures which relate to the
different faults revealed during the phase 1 and phase 2. To confirm the repairs or modifications carried out, run
the MT001 monitool test again.
Faults, Values outside the limitsThreshold Fault finding procedure
Air flow < Minimum thresholdMinimum threshold < Turbocharging
pressure < maximum thresholdFault finding procedure Monitool no. 7
Turbocharging pressure < minimum
thresholdFault finding procedure Monitool no. 8
Turbocharging pressure > maximum
thresholdContact Techline
Air flow > maximum thresholdMinimum threshold < Turbocharging
pressure < maximum thresholdContact Techline
Turbocharging pressure < minimum
thresholdContact Techline
Turbocharging pressure > maximum
thresholdContact Techline
Turbocharging pressure
< minimum thresholdMinimum threshold < Air flow < maximum
thresholdContact Techline
Air flow < Minimum thresholdFault finding procedure Monitool no. 8
Air flow > maximum threshold Contact Techline
Turbocharging pressure
> maximum thresholdMinimum threshold < Air flow < maximum
thresholdContact Techline
Air flow < Minimum threshold Contact Techline
Air flow > maximum threshold Contact Techline
EDC16CP33
Program No.: C4
Vdiag No.: 04, 44
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-467V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
MT001
CONTINUED 8
Monitool no. 7 fault finding procedure:
– Check the fitting of the air flowmeter (direction of fitting to be observed).
– Check the tightness of the different air flowmeter clips.
– Check the + 5 V supply of connection 3KJ of component 799.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
– Check that there are no air leaks between the air flowmeter and the turbocharger.
– Run Test 5 Air flowmeter: check that there is no dust on the sensors.
If the checks do not reveal any non-conformity and the fault is still present, change the air flowmeter. Attach a
screen copy of the Monitool results.
Monitool no. 8 fault finding procedure:
– Measure the internal resistance of the turbocharger control solenoid valve by applying the interpretation of
DF054 Turbocharging solenoid valve control circuit.
–Apply Test 7 Variable geometry turbocharger control.
If the checks do not reveal any non-conformity and the fault is still present, replace the turbocharger. Attach a
screen copy of the Monitool results.
If all the checks do not allow the vehicle to be repaired, contact the Techline.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 44
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-468V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
VP036INHIBIT FUEL SUPPLY
NOTESThis command enables you to disable the supply to the injectors.
This command is carried out with the engine switched off, and ignition on.
This command allows the injectors to be locked, so that starting is not possible.
Command VP036 allows the engine compressions to be checked in complete safety without disconnecting the
connectors of the injectors or the TDC sensor.
Procedure to follow (cylinder no. 1 is located on the timing end):
– Remove all of the heater plugs, connect the compression gauge with the M9R flexible end piece, part no.
MOT 1772, to a cylinder.
– Position the gear lever in neutral (manual gearbox) or to position P (automatic/sequential gearbox).
– Depress the brake pedal and keep it in this position throughout the test.
– Activate command VP036.
– Attempt to start the vehicle (within 10 seconds of activating command VP036).
If the vehicle does not start, check the cylinder compressions.
Start the procedure again on another cylinder.
WARNING:
Keep the brake pedal depressed for the length of the test.
This command is inhibited automatically after 10 seconds.
EDC16CP33_V18_VP036 / EDC16CP33_V1C_VP036 / EDC16CP33_V54_VP036 / EDC16CP33_V20_VP036 / EDC16CP33_V58_VP036 /
EDC16CP33_V5C_VP036 / EDC16CP33_V24_VP036 / EDC16CP33_V04_VP036 / EDC16CP33_V08_VP036 / EDC16CP33_V44_VP036 /
EDC16CP33_V4C_VP036 / EDC16CP33_V34_VP036 / EDC16CP33_V38_VP036 / EDC16CP33_V74_VP036 / EDC16CP33_V28_VP036 /
EDC16CP33_V62_VP036 / EDC16CP33_V26_VP036 / EDC16CP33_V60_VP036
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-469
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$160.mif
13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
NOTESOnly refer to the customer complaints after a full check with the diagnostic tool.
NO DIALOGUE WITH ENGINE MANAGEMENT COMPUTER ALP 1
STARTING FAULT OR STARTING IMPOSSIBLE ALP 2
POOR PERFORMANCEALP 4
IRREGULAR ENGINE OPERATION ALP 5
EXTERNAL LEAKS FROM THE FUEL CIRCUIT ALP 6
ROUGH IDLEALP 7
ENGINE STALLINGALP 8
PARTICLE FILTER WARNING LIGHT COMES ON TOO FREQUENTLY ALP 9
DIESEL INJECTION
Fault finding – Customer complaints

13B-470
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.mif
13B
ALP1 No dialogue with engine management computer
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2,
Scénic II ph2.
STEP 1
Check the conformity of the vehicle type, and the domain selected on the tool.
Check that the tool is not faulty by trying to establish dialogue with a computer on another vehicle.
Check the supply to the diagnostic socket, component code 225, of the following connections:
•BCP4 of component 225 (+ before ignition),
•AP10 of component 225 (+ after ignition),
•NAP and MA of component 225 (earth).
Check the conformity of the after ignition fuse.
– The conformity of the injection relay mounting.
Check the conformity of the main relay (relay removed):
–Insulation between connections 3FB and BP37 of component 983 or 1337.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
– Measure the resistance between connections 3AA and BP37 of component 983 or 1337.
If the resistance of the injection relay is not between: 60 Ω < X < 70 Ω, replace the relay.
Disconnect the engine management computer and check that there are no conducting parts on the computer
studs. If this reveals any kind of impurity, rectify it and try to establish dialogue.
If the fault is still present, place the bornier Elé. 1681 on the engine harness:
Check the continuity and absence of interference resistance on the following multiplex connections:
•133B between components 120 and 225,
•133C between components 120 and 225.
Check the +12 V after relay supply to the engine management computer on the following connections:
•3FB of component 120,
•3FB1 of component 120,
•3FB2 of component 120.
Check for complete earthing on connections NT of component 120.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
EDC16CP33_V18_ALP01 / EDC16CP33_V1C_ALP01 / EDC16CP33_V54_ALP01 / EDC16CP33_V20_ALP01 / EDC16CP33_V58_ALP01 /
EDC16CP33_V5C_ALP01 / EDC16CP33_V24_ALP01 / EDC16CP33_V04_ALP01 / EDC16CP33_V08_ALP01 / EDC16CP33_V44_ALP01 /
EDC16CP33_V4C_ALP01 / EDC16CP33_V34_ALP01 / EDC16CP33_V38_ALP01 / EDC16CP33_V74_ALP01 / EDC16CP33_V28_ALP01 /
EDC16CP33_V62_ALP01 / EDC16CP33_V26_ALP01 / EDC16CP33_V60_ALP01
DIESEL INJECTION
Fault finding – Fault Finding Chart
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-471
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP1
CONTINUED
While shunting the "normally open" contact of the supply relay i.e. connections BP37 and 3FB of component 983
or 1337:
•3FB of component 120, (with test shunt)
•3FB1 of component 120, (with test shunt)
•3FB2 of component 120, (with test shunt)
Check the continuity and absence of interference resistance of the following connection:
•3AA between components 120 and 983 or 1337.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Try to establish dialogue with another computer on the same vehicle.
If dialogue is established with another computer on the same vehicle, go to step 2.
If dialogue is not established with any other computer on the same vehicle, (see 88B, Multiplexing, ALP 1).
STEP 2
Contact the Techline.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-472
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.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.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
Is it difficult or impossible to start
the engine?PART
B
PART A:
If fault DF308 Clogged particle filter is present, consult the interpretation of DF308.
Check the engine earths.
If the engine speed is less than 200 rpm, refer to Technical Note 6014A, Charging circuit check, Starter fault
finding, Starter (formerly Technical Note 3632A).
If an engine speed of 200 rpm is achieved with starter motor in operation, PR055 Engine speed.
If the engine speed is zero with the diagnostic tool:
Measure the resistance between connections 3BG and 3BL of component 149.
If the sensor resistance is not between: 600 Ω < X < 1000 Ω, replace the sensor.
Check the continuity and absence of interference resistance on the following connections:
•3BG between the components 120 and 149,
•3BL between components 120 and 149.
Impossible
Difficult
EDC16CP33_V18_ALP02 / EDC16CP33_V1C_ALP02 / EDC16CP33_V54_ALP02 / EDC16CP33_V20_ALP02 / EDC16CP33_V58_ALP02 /
EDC16CP33_V5C_ALP02 / EDC16CP33_V24_ALP02 / EDC16CP33_V04_ALP02 / EDC16CP33_V08_ALP02 / EDC16CP33_V44_ALP02 /
EDC16CP33_V4C_ALP02 / EDC16CP33_V34_ALP02 / EDC16CP33_V38_ALP02 / EDC16CP33_V74_ALP02 / EDC16CP33_V28_ALP02 /
EDC16CP33_V62_ALP02 / EDC16CP33_V26_ALP02 / EDC16CP33_V60_ALP02
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74