2012 RENAULT SCENIC downstream

13B-386V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR381PARTICLE FILTER DOWNSTREAM TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the particle filter downstream temperature in °C.
NOTESNone.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
Indicates the particle filter downstream air temperature in °C.
PR381 ≈ PR382 Particle filter upstream temperature ≈ ± 200°C
In the event of a fault, consult the interpretation of faults DF309 Particle filter downstream temperature sensor
and DF310 Particle filter upstream temperature sensor.
EDC16CP33_V18_PR381 / EDC16CP33_V1C_PR381 / EDC16CP33_V54_PR381 / EDC16CP33_V20_PR381 / EDC16CP33_V58_PR381 /
EDC16CP33_V5C_PR381 / EDC16CP33_V24_PR381
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
54, 58, 5C
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-387V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR382PARTICLE FILTER UPSTREAM TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the air temperature of the exhaust gas upstream of the particle
filter in °C.
NOTESNone.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
The value of the air temperature of the exhaust gas upstream of the particle filter must be:
PR382 ≈ 200°C
In the event of a fault, consult the interpretation of faults DF309 Particle filter downstream temperature sensor
and DF310 Particle filter upstream temperature sensor.
EDC16CP33_V18_PR382 / EDC16CP33_V1C_PR382 / EDC16CP33_V54_PR382 / EDC16CP33_V20_PR382 / EDC16CP33_V58_PR382 /
EDC16CP33_V5C_PR382 / EDC16CP33_V24_PR382 / EDC16CP33_V28_PR382 / EDC16CP33_V62_PR382 / EDC16CP33_V26_PR382 /
EDC16CP33_V60_PR382
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-428V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC017
CONTINUED 1
PROCEDURE TO BE FOLLOWED:
To run this command, select the command mode on the diagnostic tool and run command SC017.
When regeneration is complete, a message will indicate whether regeneration was successful, and what
operations need to be carried out (filter replacement, whether an oil service is required, etc.).
DESCRIPTION OF THE PROCESS
particle filter regeneration takes place in 3 stages (values given as a guide only):
Heating phase: the speed is fixed or fluctuating around 3000 rpm.
– This phase lasts at least 6minutes, until the coolant temperature is above 80°C.
–Regeneration phase: the speed is fixed or varies around 2000 rpm. Engine injection is retarded. The exhaust
fumes rise in temperature and burn the soot retained in the particle filter. The particle filter downstream
temperature starts to rise after the particle filter upstream temperature due to the volume of the particle filter.
Then the combustion of the soot stored in the particle filter causes the particle filter downstream temperature
to increase, possibly reaching more than 700°C depending on the amount of soot in the filter (with a particle
filter upstream temperature of around 600°C). This phase lasts about 30 minutes.
–Cooling phase: the engine speed is fixed or varies around 2000 rpm.
– Engine injection returns to normal and the exhaust gases cool the particle filter.
– This phase lasts 3 minutes. At the end of this period, the engine speed returns to idle speed or remains fixed
at 2000 rpm.
The process lasts at least 40 minutes (the regeneration time will be increased depending on how long it takes
for the coolant to heat up to 80°C).
EDC16CP33
Program No.: C4
Vdiag No.: 1C, 20, 24, 26,
28, 54, 58, 5C, 60, 62
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-502V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST6 Fuel return rail valve check
This test consists of creating a vacuum downstream of the anti-return valve of the injector return rail and checking
whether fuel is drawn in by the valve.
Fitting:
Remove the rail protector.
Disconnect the union of the return rail on injector 4 (on the gearbox side).
Disconnect the union downstream of the anti-return valve.
Connect the 8 mm quick-release coupling.
Connect a transparent hose (resistant to diesel, length 60 cm and internal diameter 8 mm).
Connect a manual vacuum pump.
Gradually apply a vacuum up to 0.5 bar.
If more than a cm of diesel is quickly drawn into the hose, the valve is leaking. Stop the vacuum immediately.
Replace the diesel injector fuel return rail and its overpressure valve (see MR364 (Mégane II ph2), MR370 (Scénic
II ph2), MR 395 (Laguna II ph2), MR 402 (Vel-Satis ph2), MR405 (Espace IV ph2) Mechanical, 13B, Diesel
injection, Diesel injector fuel return rail: Removal - Refitting).
Otherwise, maintain the vacuum for 1 minute.
If less than a cm of diesel is drawn into the hose, the valve of the rail is not leaking.
End of test.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
EDC16CP33_V18_TEST6 / EDC16CP33_V1C_TEST6 / EDC16CP33_V54_TEST6 / EDC16CP33_V20_TEST6 / EDC16CP33_V58_TEST6 /
EDC16CP33_V5C_TEST6 / EDC16CP33_V24_TEST6 / EDC16CP33_V04_TEST6 / EDC16CP33_V08_TEST6 / EDC16CP33_V44_TEST6 /
EDC16CP33_V4C_TEST6 / EDC16CP33_V34_TEST6 / EDC16CP33_V38_TEST6 / EDC16CP33_V74_TEST6 / EDC16CP33_V28_TEST6 /
EDC16CP33_V62_TEST6 / EDC16CP33_V26_TEST6 / EDC16CP33_V60_TEST6