2012 RENAULT SCENIC check engine

13B-464V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
MT001
CONTINUED 5
PHASE 2:
Preliminary test:
Engine speed between: 2480 rpm < X < 2520 rpm
Coolant temperature > 70°C
EGR valve feedback position < 1%
Interpretation:
If, during phase 2, no data is outside the maximum and minimum limits for each variable, interpret the Monitool
analysis for phase 3.
Note: the interpretation of faults during phase 2 should only be carried out in the following situation:
– The variables measured during phase 1 are correct, i.e. they are within the maximum and minimum 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. 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 thresholdContact Techline
Turbocharging pressure < minimum threshold Contact Techline
Turbocharging pressure > maximum
thresholdContact Techline
Air flow > maximum thresholdMinimum threshold < Turbocharging pressure
< maximum thresholdContact Techline
Turbocharging pressure < minimum threshold Contact Techline
Turbocharging pressure > maximum
thresholdFault finding procedure Monitool no. 6
Turbocharging pressure
< minimum thresholdMinimum threshold < Air flow < maximum
thresholdContact Techline
Air flow < Minimum threshold Contact Techline
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
Fault finding procedure Monitool no. 6
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-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-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

13B-473
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
CONTINUED 1
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.
Check the conformity of the engine earths (oxidation, tightness, etc.).
Check the mounting and condition (overheating) of the sensor.
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 sensor consistency.
Test the high pressure fuel circuit:
Run scenario SC035 High pressure fuel circuit fault finding.
To interpret the result, apply the interpretation of command SC035 (see Interpretation of commands).
Check the fuel circuit sealing: run Test 3 Low pressure circuit check.
If Test 3 is correct.
If Test 3 is not correct, proceed as follows:
Check the conformity of the type of heater plugs configured:
For Vdiag 20, 24, 38 and 74: consult ET781 Heater plugs in the Ignition/Preheating subfunction and check the
conformity with the type of plugs installed:
– Slow plugs have a black ring.
– Fast plugs have a white ring.
If the heater plugs are being replaced with plugs of a different type (see Replacement of components, Replacing
heater plugs).
For all Vdiags, check that all 4 plugs have the same colour ring.
Check that the heater plugs are actuated using the AC037 Preheating relay command.
Check the sealing and condition of the inlet circuit: run Test 4 Turbocharged air inlet circuit check, and follow
the related fault finding procedure (see Test 4).
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-474
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
CONTINUED 2
Check that the exhaust is not blocked: run Test 1 Exhaust pipe check, and follow the related fault finding
procedure (see Test 4).
Check the consistency of the signal from the engine coolant temperature sensor.
Check the operation of the rail pressure regulator (DRV) using command AC225 Rail pressure regulator and then
the operation of the pump pressure regulator (MPROP) using command AC226 Pump pressure regulator.
Check the timing setting.
Apply part B of Test 10 Poor injector operation.
End of part A.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74