13B-196
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check using the diagnostic tool.
V9 MR-372-J84-13B450$104.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DF953
CONTINUED
Check the status of the differential pressure sensor connector and engine management computer.
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the particle filter is present.
If it is present,
Visually check that the particle filter is in good condition by positioning the vehicle on a lift:
– not damaged (no abnormal welds, if necessary compare it with another vehicle fitted with particle filter),
– if there are After-Sales sleeves, as a result of a previous operation, check that the particle filter's contents were
not emptied out when it was removed.
If the particle filter is not in good condition or is absent:
– Replace the particle filter.
– Switch on the ignition.
– establish dialogue with the injection computer,
– run command SC036 Reinitialise programming,
–select After particle filter replacement as the operation type, then follow the instructions given by the
diagnostic tool,
– switch off the ignition,
– wait for the diagnostic tool message (maximum time 8 minutes): Communication lost with computer:
EDC16C36, check the tool connection and computer supply before switching the ignition back on.
– clear the faults from the computer memory (this operation must be carried out within 3 minutes of the ignition
being switched on).
– Check the weight of soot: PR383 Weight of soot in the particle filter.
– If PR383
≥ 1 g. Apply the procedure of test 12 Manual clearing of the weight of soot.
If the fault is still present, contact the Techline.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
13B-257V9 MR-372-J84-13B450$132.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
* Regen: regeneration
ET742
ET743
ET744
ET745
ET746
ET747
ET748
ET749
ET750
ET751STORED REGEN. REQUEST STATUS No. 1
STORED REGEN. REQUEST STATUS No. 2
STORED REGEN. REQUEST STATUS No. 3
STORED REGEN. REQUEST STATUS No. 4
STORED REGEN. REQUEST STATUS No. 5
STORED REGEN. REQUEST STATUS No. 6
STORED REGEN. REQUEST STATUS No. 7
STORED REGEN. REQUEST STATUS No. 8
STORED REGEN. REQUEST STATUS No. 9
STORED REGEN. REQUEST STATUS No. 10
STATUS DEFINITIONStatuses ET742 to ET751 correspond to the causes for the regeneration request. They
are connected to parameters PR816 Stored regeneration start No. 1 to PR825
Stored regeneration start No. 10 which contains the stored mileage of the vehicle at
the start of the regeneration (for example, PR745 Store regeneration start No. 4 is
related to ET709 Store regen.* request status No. 4).
NOTESSpecial notes:
For Vdiag 48:
These statuses should only be interpreted for ALP11 Particle filter warning light
comes on too frequently.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
STATUS 1Request by weight of soot
Regeneration has been requested after the maximum weight of soot has been
reached and measured in the particle filter, without the particle filter warning light
coming on.
EDC16C36_V48_ET742/EDC16C36_V48_ET743/EDC16C36_V48_ET744/EDC16C36_V48_ET745/EDC16C36_V48_ET746/
EDC16C36_V48_ET747/EDC16C36_V48_ET748/EDC16C36_V48_ET749/EDC16C36_V48_ET750/EDC16C36_V48_ET751/
EDC16C36_V50_ET742/EDC16C36_V50_ET743/EDC16C36_V50_ET744/EDC16C36_V50_ET745/EDC16C36_V50_ET746/
EDC16C36_V50_ET747/EDC16C36_V50_ET748/EDC16C36_V50_ET749/EDC16C36_V50_ET750/EDC16C36_V50_ET751/
EDC16C36_V58_ET742/EDC16C36_V58_ET743/EDC16C36_V58_ET744/EDC16C36_V58_ET745/EDC16C36_V58_ET746/
EDC16C36_V58_ET747/EDC16C36_V58_ET748/EDC16C36_V58_ET749/EDC16C36_V58_ET750/EDC16C36_V58_ET751
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
13B-258V9 MR-372-J84-13B450$132.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
* Regen: regeneration
ET742
ET743
ET744
ET745
ET746
ET747
ET748
ET749
ET750
ET751
CONTINUED
STATUS 2
Request by estimated weight of soot
Regeneration has been requested following an estimate of the maximum weight of
soot in the particle filter, without the particle filter warning light coming on.
STATUS 3Request by distance travelled
Regeneration has been requested because the distance travelled since the last
successful regeneration has reached the maximum authorised value (the particle filter
warning light has not illuminated).
STATUS 4Request by number of regeneration failures or weight of soot
This status corresponds to the appearance of DF312 Speed request.
This corresponds to the maximum number of failed regenerations or to the maximum
weight of soot in the particle filter, with illumination of the particle filter warning light.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
13B-260V9 MR-372-J84-13B450$140.mif
DIESEL INJECTION
Fault finding – Parameter summary table13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Tool parameter Diagnostic tool title
PR076Refrigerant sensor voltage
PR077EGR valve position sensor voltage
PR079Atmospheric pressure sensor voltage
PR080Rail pressure sensor voltage
PR082Fuel temperature sensor voltage
PR083Air temperature sensor voltage
PR084Coolant temperature sensor voltage.
PR086Pedal potentiometer voltage gang 1
PR088Pedal potentiometer gang 2 voltage
PR089Vehicle speed
PR128First EGR valve offset
PR129Last EGR valve offset
PR130Cruise control setpoint
PR131EGR air flow difference
PR132Air flow
PR146Inlet air flow
PR157Fuel flow setpoint
PR171Air flow setpoint for EGR
PR190Engine idle speed setpoint.
PR209Turbocharging pressure loop difference
PR213Rail pressure loop difference
PR224Turbocharging pressure sensor voltage
PR358Sensor reference voltage
PR364Cylinder no. 1 fuel flow correction
PR365Cylinder no. 4 fuel flow correction
PR381Particle filter downstream temperature
PR382Particle filter upstream temperature
PR383Weight of soot in the particle filter
13B-322V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
diff: differential
PR383WEIGHT OF SOOT IN PARTICLE FILTER
PARAMETER
DEFINITIONThis parameter indicates the weight of soot contained in the particle filter in g.
NOTESThis parameter exists only on F9Q816 engines
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C, without electrical consumers
PR383 < 70 g.
If the weight is greater than 70 g carry out an After-Sales regeneration.
Check that there are no leaks or blockages in the exhaust pipe,
Repair if necessary
Run command SC017 Particle filter regeneration and follow the procedure (see Interpretation of commands).
In the event of a fault, refer to the interpretation of fault DF315 Particle filter diff* pressure sensor.
EDC16C36_V48_PR383/EDC16C36_V50_PR383/EDC16C36_V58_PR383
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
13B-349V9 MR-372-J84-13B450$152.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR1012WEIGHT OF SOOT AFTER REGENERATION
PARAMETER
DEFINITIONThis parameter indicates the weight of soot, in g, in the particle filter after a
regeneration.
NOTESConsult this parameter after using SC017 Particle filter regeneration.
Conformity check: Engine stopped and the ignition on, or the engine running and the engine coolant
temperature > 80°C without electrical consumers.
If PR1012 is less than 15 g, the particle filter regeneration completed correctly.
If PR1012 is greater than 15 g, it is necessary to perform a second particle filter regeneration using command
SC017 Particle filter regeneration (see interpretation of commands).
IMPORTANT:
Before performing a second After-Sales regeneration of the particle filter, the engine must be allowed to cool down
for 2 hours with the bonnet open.
Do not carry out the usual engine oil change before a second After-Sales regeneration (see SC017 Particle filter
regeneration).
EDC16C36_V48_PR1012/EDC16C36_V50_PR1012/EDC16C36_V58_PR1012EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
13B-356
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
V9 MR-372-J84-13B450$170.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC017
CONTINUED 1
DESCRIPTION OF THE PROCESS
Particle filter regeneration takes place in 3 stages (values given as a guide only):
–Heating phase: the engine speed is fixed or fluctuating around 2000 rpm.
This phase lasts between 8 and 14 minutes, until the coolant temperature exceeds 70°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. Then the combustion of the soot stored
in the particle filter causes the particle filter upstream temperature to increase, possibly reaching 600°C
depending on the amount of soot in the particle filter. This phase lasts 28 minutes.
–Cooling phase: the engine speed decreases to 1250 rpm then increases to 1750 rpm.
Engine injection returns to normal and the exhaust gases cool the particle filter.
This phase lasts 3 minutes.
The procedure lasts at least 40 minutes, and varies depending on the time taken to reach a coolant temperature
of 70°C.
VALIDATING THE REGENERATION PROCESS:
At the end of regeneration, a message appears to announce whether the regeneration was successful:
●Particle filter regeneration finished:
Consult PR1012 Weight of soot after regeneration. If PR1012 is less than 15 g, the particle filter regeneration
completed correctly. If PR1012 is greater than 15 g, a second particle filter regeneration must be performed using
the command in the diagnostic tool and choose command SC017.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58
13B-357
AFTER REPAIRRepeat the conformity check in the interpretation of statuses and parameters
V9 MR-372-J84-13B450$170.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC017
CONTINUED 2
IMPORTANT:
Before performing a second After-Sales regeneration of the particle filter, the engine must be allowed to cool down
for 2 hours with the bonnet open.
Do not carry out the usual engine oil change before a second After-Sales regeneration.
Only for Vdiag 50:
– Change the engine oil if a message on the instrument panel requests it.
For the other VDiag:
–Consult PR848 Number of regeneration failures. If PR848 is greater than 3, change the engine oil.
●Particle filter too full - replace the particle filter: regeneration has failed. The weight of soot in the particle
filter is so great that it is creating back-pressure. Deal with any faults that appear or replace the particle filter.
Run command SC036 Reinitialise programming and select After particle filter replacement.
– Switch off the ignition and wait for the diagnostic tool message (maximum time 8 minutes): Communication
lost with computer: EDC16C36, check the tool connection and computer power supply.
–Then switch on the ignition again, clear the present or stored faults from the computer memory (operation
to be carried out within 3 minutes of switching on the ignition).
– Check the weight of soot: PR383 Weight of soot in the particle filter.
– If PR383
≥ 1 g. Apply the procedure of test 12 Manual clearing of the weight of soot.
Only for Vdiag 50:
– Change the engine oil if a message on the instrument panel requests it.
– For the other Vdiags:
–Consult PR848 Number of regeneration failures. If this parameter is greater than 3, it is essential to change
the engine oil.
– Explain to the customer the procedure for regeneration when driving to avoid unnecessary repairs: see PART D
in the interpretation of DF312 Speed request.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 50, 58