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-475
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 3
PART
B
If fault DF308 Clogged particle filter is present, apply the interpretation of DF308.
Is there diesel in the tank?Fill the tank with diesel fuel.
Bleed the low and high pressure diesel circuit.
Does the starter motor work properly?
(Ensure that the engine speed reaches > ≈ 200
rpm with the starter in operation, PR055 Engine
speed)Refer to Technical Note 6014A, Charging circuit
check, 16A (formerly Technical Note 3455A),
Starter fault finding, Starter (formerly Technical
Note 3632A).
Using the diagnostic tool, check the conformity of the immobiliser: ET003 Immobiliser must be INACTIVE.
Consult the fault finding procedure for the
immobiliser.Continue the fault finding procedure with Part A of
this fault finding chart.
NO
YES
NO
YES
ET003 not correct, or
warning light
permanently onET003 correct
(immobiliser code
warning light off)
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-476
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
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 event of the engine overheating above 118°C, the computer deliberately limits the fuel flow (overheating
warning light comes on from 115°C).
– Please observe the cleanliness guidelines and safety advice.
Note:
For the M9R 724 (Vdiag 5C and 58):
The engine is limited to 3000 rpm if the vehicle is stationary or if the vehicle speed is less than 4 mph (7 km/h)
and if the engine is warm.
EDC16CP33_V18_ALP04 / EDC16CP33_V1C_ALP04 / EDC16CP33_V54_ALP04 / EDC16CP33_V20_ALP04 / EDC16CP33_V58_ALP04 /
EDC16CP33_V5C_ALP04 / EDC16CP33_V24_ALP04 / EDC16CP33_V04_ALP04 / EDC16CP33_V08_ALP04 / EDC16CP33_V44_ALP04 /
EDC16CP33_V4C_ALP04 / EDC16CP33_V34_ALP04 / EDC16CP33_V38_ALP04 / EDC16CP33_V74_ALP04 / EDC16CP33_V28_ALP04 /
EDC16CP33_V62_ALP04 / EDC16CP33_V26_ALP04 / EDC16CP33_V60_ALP04
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-487
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
ALP9 PARTICLE FILTER WARNING LIGHT COMES ON TOO OFTEN
NOTESBefore dealing with this customer complaint, check that there are no faults except
DF312 Speed request, and the conformity (or otherwise) of the "parameters" and
"statuses" using the diagnostic tool. Deal with the other faults first.
If the customer complaint is not eliminated, perform the following checks.
Have the last 10 regeneration
attempts failed?Are all the regeneration failures
linked to engine cut-off?
See group parameter (ET706
Stored engine status no. 1 to
ET715 Stored engine status no.
10)
(e.g. ET706 STOPPED)Output 1 Is the distance of PR412 Distance of
last successful regeneration less
than all the parameters of group 2?
(PR794 to PR803 Stored
regeneration failure no.1 to no.10)
Is at least one status for group
1 = STATUS4?Check the exhaust pipe for leaks
or blockage. Repair if necessary.
Carry out an After-Sales
regeneration if not already
performed. To do this, see SC017
Particle filter regeneration in
Interpretation of commands.Output 2
YES
YES
NONO
YES
A
NO
B
EDC16CP33_V18_ALP09 / EDC16CP33_V1C_ALP09 / EDC16CP33_V54_ALP09 / EDC16CP33_V20_ALP09 / EDC16CP33_V58_ALP09 /
EDC16CP33_V5C_ALP09 / EDC16CP33_V24_ALP09 / EDC16CP33_V28_ALP09 / EDC16CP33_V62_ALP09 / EDC16CP33_V26_ALP09 /
EDC16CP33_V60_ALP09
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62
13B-491
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
Analysis of output for ALP9.
ALP9
CONTINUED 4
ALP
output no.Output conditions for
ALP9Cause - type of drivingRegeneration
frequencyWhat to tell the
customer?
Output 1The last 10 regeneration
attempts have failed due to
the engine cutting out.Regeneration failures
caused by engine cut-off.No regeneration
frequency analysis.Explain to the customer
the need to wait until the
end of regeneration
(warning light goes out)
before switching off the
engine.
Output 2The last 10 regeneration
attempts have failed but
not because of the engine
cutting out.Unsuitable driving
conditions.No regeneration
frequency analysis.Explain again to the
customer the driving
criteria for when the
warning light comes on.
Output 3After successful
regenerations stored in the
memory, the warning light
did not come on. No
interval can be calculated.Since the last successful
stored regenerations, the
driving conditions have not
allowed the warning light to
come on.Should be normal Vehicle correct
Output 4The interval between a
successful regeneration
and the particle filter
warning light coming on is
correct (above the lowest
possible values). The
system does not have any
irregular components.Unfavourable driving
(urban zone, underspeed,
etc.)Normal Vehicle correct
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62
13B-508V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST12 Diesel fuel conformity check
WARNING
During this operation, it is essential to:
– refrain from smoking or bringing incandescent objects close to the work area,
– guard against petrol splashes caused by the residual pressure in the pipes,
– wear safety goggles with side guards,
– wear leaktight gloves (Nitrile type).
IMPORTANT
– To avoid any corrosion or damage, protect the areas on which fuel is likely to run.
– To prevent impurities from entering the circuit, place protective plugs on all fuel circuit components
exposed to the open air.
Preparations:
Weigh an empty 1300 ml plastic cup (part no. 77 11 171 413) with its cover (part no. 77 11 171 416) using
electronic scales such as those used in body paint workshops (example: PANDA part no. 77 11 224 995). Record
the weight of the empty plastic cup.
This type of plastic cup is used to prepare paint.
Remove 1 litre of fuel from the diesel fuel filter outlet (see MR395 (Laguna II ph2) or MR402 (Vel Satis ph2)
or MR405 (Espace IV ph2) or MR364 (Mégane II ph2) or MR370 (Scénic II ph2), Mechanical, 19C, Tank, Fuel
tank: Draining), using a pneumatic transfer pump (part no. 634-200) and place it in the 1300 ml plastic cup.
Cover the plastic cup with its cover and let it settle for approximately2 minutes.
Is the fuel cloudy or does it
separate into two parts?Presence of water in diesel fuel, the fuel is not compliant.
Drain the fuel circuit, including the tank (see MR395 (Laguna II
ph2) or MR402 (Vel Satis ph2) or MR405 (Espace IV ph2) or
MR364 (Mégane II ph2) or MR370 (Scénic II ph2), Mechanical,
19C, Tank, Fuel tank: Draining).
YES
A
NO
EDC16CP33_V18_TEST12 / EDC16CP33_V1C_TEST12 / EDC16CP33_V54_TEST12 / EDC16CP33_V20_TEST12 /
EDC16CP33_V58_TEST12 / EDC16CP33_V5C_TEST12 / EDC16CP33_V24_TEST12 / EDC16CP33_V04_TEST12 /
EDC16CP33_V08_TEST12 / EDC16CP33_V44_TEST12 / EDC16CP33_V4C_TEST12 / EDC16CP33_V34_TEST12 /
EDC16CP33_V38_TEST12 / EDC16CP33_V74_TEST12 / EDC16CP33_V28_TEST12 / EDC16CP33_V62_TEST12/
EDC16CP33_V26_TEST12 / EDC16CP33_V60_TEST12
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74