Page 389 of 510
13B-389V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR385EXHAUST SYSTEM FLOW
PARAMETER
DEFINITIONThis parameter indicates the exhaust pipe flow in m3/h.
NOTESNone.
Conformity check with engine stopped and ignition on.
When stationary, the exhaust pipe flow value must be:
PR385 = 0 m
3/h.
Conformity check with the engine running and engine coolant temperature > 80°C
The exhaust pipe flow value must be between:
20 m
3/h < PR385 < 80 m3/h.
EDC16CP33_V18_PR385 / EDC16CP33_V1C_PR385 / EDC16CP33_V54_PR385 / EDC16CP33_V20_PR385 / EDC16CP33_V58_PR385 /
EDC16CP33_V5C_PR385 / EDC16CP33_V24_PR385 / EDC16CP33_V28_PR385 / EDC16CP33_V62_PR385 / EDC16CP33_V26_PR385 /
EDC16CP33_V60_PR385
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.
Page 391 of 510

13B-391V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR405CYLINDER NO. 2 FUEL FLOW CORRECTION
PARAMETER
DEFINITIONThis parameter indicates the cylinder's fuel flow correction in mg/st.
NOTESNone.
Conformity check with engine stopped and ignition on.
The cylinder fuel flow correction value must be:
PR405 = 0.0 mg/st.
In the event of a fault, consult Test 10 Poor injector operation.
Conformity check with the engine running and engine coolant temperature > 80°C
The cylinder fuel flow correction value must be between:
- 6 mg/st < PR405 < 6 mg/st.
In the event of a fault, consult Test 10.
EDC16CP33_V18_PR405 / EDC16CP33_V1C_PR405 / EDC16CP33_V54_PR405 / EDC16CP33_V20_PR405 / EDC16CP33_V58_PR405 /
EDC16CP33_V5C_PR405 / EDC16CP33_V24_PR405 / EDC16CP33_V04_PR405 / EDC16CP33_V08_PR405 / EDC16CP33_V44_PR405 /
EDC16CP33_V4C_PR405 / EDC16CP33_V34_PR405 / EDC16CP33_V38_PR405 / EDC16CP33_V74_PR405 / EDC16CP33_V28_PR405 /
EDC16CP33_V62_PR405 / EDC16CP33_V26_PR405 / EDC16CP33_V60_PR405
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.
Page 392 of 510

13B-392V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR406CYLINDER NO. 3 FUEL FLOW CORRECTION
PARAMETER
DEFINITIONThis parameter indicates the cylinder's fuel flow correction in mg/st.
NOTESNone.
Conformity check with engine stopped and ignition on.
The cylinder fuel flow correction value must be:
PR406 = 0.0 mg/st.
In the event of a fault, consult Test 10 Poor injector operation.
Conformity check with the engine running and engine coolant temperature > 80°C
The cylinder fuel flow correction value must be between:
– 6 mg/st < PR406 < 6 mg/st.
In the event of a fault, consult Test 10.
EDC16CP33_V18_PR406 / EDC16CP33_V1C_PR406 / EDC16CP33_V54_PR406 / EDC16CP33_V20_PR406 / EDC16CP33_V58_PR406 /
EDC16CP33_V5C_PR406 / EDC16CP33_V24_PR406 / EDC16CP33_V04_PR406 / EDC16CP33_V08_PR406 / EDC16CP33_V44_PR406 /
EDC16CP33_V4C_PR406 / EDC16CP33_V34_PR406 / EDC16CP33_V38_PR406 / EDC16CP33_V74_PR406 / EDC16CP33_V28_PR406 /
EDC16CP33_V62_PR406 / EDC16CP33_V26_PR406 / EDC16CP33_V60_PR406
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.
Page 397 of 510

13B-397V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR490ENGINE AIR FLOW
PARAMETER
DEFINITIONThis parameter indicates the air flow entering the engine in mg/st.
NOTESNone.
Conformity check: Engine stopped and ignition on
The inlet air flow value must be:
PR490 = 0 mg/st.
Conformity check with the engine running and engine coolant temperature > 80°C
The inlet air flow value must be:
PR490 ± 500 mg/st.
EDC16CP33_V18_PR490 / EDC16CP33_V1C_PR490 / EDC16CP33_V54_PR490 / EDC16CP33_V20_PR490 / EDC16CP33_V58_PR490 /
EDC16CP33_V5C_PR490 / EDC16CP33_V24_PR490 / EDC16CP33_V04_PR490 / EDC16CP33_V08_PR490 / EDC16CP33_V44_PR490 /
EDC16CP33_V4C_PR490 / EDC16CP33_V34_PR490 / EDC16CP33_V38_PR490 / EDC16CP33_V74_PR490 / EDC16CP33_V28_PR490 /
EDC16CP33_V62_PR490 / EDC16CP33_V26_PR490 / EDC16CP33_V60_PR490
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.
Page 401 of 510

13B-401V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR739FUEL FLOW SOLENOID VALVE CURRENT
PARAMETER
DEFINITIONThis parameter indicates the current absorbed by the fuel flow solenoid valve inmA.
Conformity check with engine stopped and ignition on.
The value of the current absorbed by the fuel flow solenoid valve must be:
PR739 ≈ 200 mA.
In the event of a fault, consult the interpretation of DF897 Pump pressure regulator circuit.
Conformity check with the engine running and engine coolant temperature > 80°C
The value of the current absorbed by the fuel flow solenoid valve must be:
PR739 ≈ 300 mA.
In the event of a fault, refer to the interpretation of fault DF897.
EDC16CP33_V18_PR739 / EDC16CP33_V1C_PR739 / EDC16CP33_V54_PR739 / EDC16CP33_V20_PR739 / EDC16CP33_V58_PR739 /
EDC16CP33_V5C_PR739 / EDC16CP33_V24_PR739 / EDC16CP33_V04_PR739 / EDC16CP33_V08_PR739 / EDC16CP33_V44_PR739 /
EDC16CP33_V4C_PR739 / EDC16CP33_V34_PR739 / EDC16CP33_V38_PR739 / EDC16CP33_V74_PR739 / EDC16CP33_V28_PR739 /
EDC16CP33_V62_PR739 / EDC16CP33_V26_PR739 / EDC16CP33_V60_PR739
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.
Page 405 of 510

13B-405V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR784
PR785
PR786
PR787
PR788
PR789
PR790
PR791
PR792
PR793
CONTINUED
These parameters are used so that the history of the last ten activations of the particle filter warning light are
known.
In Vdiag 18, 1C, 54:
Each parameter from PR784 to PR793 records the distance when the particle filter warning light comes on which
is associated with the appearance of DF312.
Each time the particle filter warning light comes on, the vehicle mileage is stored in the following parameter (PR+1).
When all ten parameters have a value other than zero, and the particle filter warning light comes on again, the
distance information for PR784 is cleared and replaced by the new value.
For other Vdiags:
Each parameter from PR784 DF312 record no. 1 to PR793 DF312 record no. 10 contains a record of the vehicle
mileage when the particle filter warning light comes on. The appearance of fault DF312 Speed request is
associated with each of these parameters.
PR784 to PR793 operate through successive copying (when the particle filter warning light comes on, the value of
PR784 is copied to PR785 DF312 record no. 2, the value of PR785 is copied to PR786 DF312 record no. 3 and
so on).
When there are more than ten records, the value of PR793 is deleted. The new mileage is allocated to PR784.
If none of the parameters between PR784 and PR793 is available in the sub-function, this means that no data has
been saved. The parameters appear in the sub-function when they have a value above zero.
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 54, 58, 5C, 60
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
Page 412 of 510

13B-412V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
SOLEN.*: Solenoid valve
PR850FUEL FLOW SOLEN.* CURRENT SETPOINT
PARAMETER
DEFINITIONThis parameter indicates the setpoint for the current absorbed by the fuel flow solenoid
valve in mA.
NOTESNone.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
This parameter indicates the setpoint for the current absorbed by the fuel flow solenoid valve.
EDC16CP33_V18_PR850 / EDC16CP33_V1C_PR850 / EDC16CP33_V54_PR850 / EDC16CP33_V20_PR850 / EDC16CP33_V58_PR850 /
EDC16CP33_V5C_PR850 / EDC16CP33_V24_PR850 / EDC16CP33_V04_PR850 / EDC16CP33_V08_PR850 / EDC16CP33_V44_PR850 /
EDC16CP33_V4C_PR850 / EDC16CP33_V34_PR850 / EDC16CP33_V38_PR850 / EDC16CP33_V74_PR850 / EDC16CP33_V28_PR850 /
EDC16CP33_V62_PR850 / EDC16CP33_V26_PR850 / EDC16CP33_V60_PR850
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.
Page 421 of 510

13B-421
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$130.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR1012WEIGHT OF SOOT AFTER REGENERATION
STATUS
DEFINITIONThis parameter indicates the weight in g of soot present in the particle filter following
regeneration.
NOTESThis parameter should be consulted after running SC017 Particle filter regeneration.
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80°C without electrical consumers
If this parameter is less than 15 g, particle filter regeneration was successful.
If PR1012 is greater than 15 g, it is necessary to perform a second particle filter regeneration using command
SC017 Particle filter regeneration.
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 an engine oil change before a second After-Sales regeneration.
EDC16CP33_V1C_PR1012 / EDC16CP33_V54_PR1012 / EDC16CP33_V20_PR1012 / EDC16CP33_V58_PR1012 /
EDC16CP33_V5C_PR1012 / EDC16CP33_V24_PR1012 / EDC16CP33_V28_PR1012 / EDC16CP33_V62_PR1012/
EDC16CP33_V26_PR1012 / EDC16CP33_V60_PR1012
EDC16CP33
Program No.: C4
Vdiag No.: 1C, 20, 24, 26,
28, 54, 58, 5C, 60, 62