Page 407 of 510

13B-407V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR794
PR795
PR796
PR797
PR798
PR799
PR800
PR801
PR802
PR803
CONTINUED
In Vdiag 18, 1C, 54:
Each of these parameters contains the vehicle mileage during a failed particle filter regeneration when driving.
Each parameter relates to an engine status. The statuses and parameters are recorded at the same time (for
example PR797 is associated with ET709 Stored engine status no. 4).
Each new recorded value is saved under the next PR (PR+1).
When all ten parameters have a value other than zero and there is a regeneration failure when driving, the distance
information for PR794 is cleared and replaced by the new value.
For other Vdiags:
Every parameter between PR794 Stored regeneration failure no. 1 and PR803 Stored regeneration failure no.
10 contains the vehicle mileage at the time of a particle filter regeneration failure when driving. Each parameter
relates to an engine status. They are recorded simultaneously (for example PR797 is associated with ET709
Stored engine status no. 4).
PR794 to PR803 operate through successive copying (when there is a regeneration failure when driving, the value
of PR794 is copied to PR795 Stored regeneration failure no. 2, the value of PR795 is copied to PR796 Stored
regeneration failure no. 3 and so on).
When there are more than ten records, the value of PR803 is deleted. The new mileage is allocated to PR794.
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 409 of 510

13B-409V12 MR-372-J84-13B300$122.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
rege*: Regeneration
PR816
PR817
PR818
PR819
PR820
PR821
PR822
PR823
PR824
PR825
CONTINUED
In Vdiag 18, 1C, 54:
Each parameter between PR816 and PR825 contains the vehicle distance stored when particle filter regeneration
starts when driving. Each parameter is connected with a status "Regeneration request status record". They are
recorded simultaneously (for example PR819 is associated with ET745 Stored regeneration request status
No. 4).
Each new recorded value is saved under the next PR (PR+1).
When all ten parameters have a value other than zero, and a new regeneration starts when driving, the distance
information for PR816 is cleared and replaced by the new value.
For other Vdiags:
Each parameter from PR816 Stored regeneration start No. 1 to PR825 Stored regeneration start No. 10
records the mileage when particle filter regeneration starts for which the status request is recorded in ET742
Stored rege*. request status No.1 to ET751 Stored rege*. request status No.10. (for example PR819 Stored
regeneration start No. 4 is associated with ET745 Stored rege*. request status No.4).
Each time a new regeneration when driving is started, the vehicle mileage is recorded in PR816, as well as its
status in ET742.
PR816 to PR825 operate through successive copying (when regeneration starts, the value of PR816 is copied to
PR817 Stored regeneration start no. 2, the value of PR817 is copied to PR818 Stored regeneration start no. 3
and so on).
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 54, 58, 5C, 60
Page 418 of 510

13B-418
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$130.mif
13B
PR873OIL OXIDATION SIGNAL
STATUS
DEFINITIONThis parameter indicates the vehicle distance in miles (km) when the oil oxidation
threshold is reached.
NOTESThis parameter should only be interpreted if the OCS (Oil Control System) program is
activated on the instrument panel. On the instrument panel computer, check the
configuration reading LC106 O.C.S: WITH.
Conformity check: Engine stopped and the ignition on, or Engine running and the engine coolant
temperature > 80°C without electrical consumers
The oil condition is calculated by the oxidation program in the injection computer, according to the number of
engine revolutions.
When this count reaches a certain threshold before the end of the oil service period, the injection computer sends
a signal to the instrument panel, which will display service due. Parameter PR873 corresponds to the vehicle
mileage at the time this signal is sent.
Then the instrument panel computer deducts 900 miles (1500 km) before displaying the message Service
required.
IMPORTANT:
When the message Service due appears on the instrument panel, the customer must have the oil changed within
the remaining 900 miles (1500 km).
EDC16CP33_V5C_PR873 / EDC16CP33_V20_PR873 / EDC16CP33_V34_PR873 / EDC16CP33_V38_PR873 / EDC16CP33_V74_PR873 /
EDC16CP33_V26_PR873 / EDC16CP33_V28_PR873 / EDC16CP33_V60_PR873 / EDC16CP33_V62_PR873
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16CP33
Program No.: C4
Vdiag No.: 20, 26, 28, 34,
38, 5C, 60, 62, 74
Page 419 of 510
13B-419
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
PR874LAST SERVICE
STATUS
DEFINITIONThis parameter indicates the vehicle's mileage at the last service in miles (km).
It is updated when the oil service parameters are reinitialised on the instrument panel.
NOTESNone.
EDC16CP33_V5C_PR874 / EDC16CP33_V20_PR874 / EDC16CP33_V34_PR874 / EDC16CP33_V38_PR874 / EDC16CP33_V74_PR874 /
EDC16CP33_V26_PR874 / EDC16CP33_V28_PR874 / EDC16CP33_V60_PR874 / EDC16CP33_V62_PR874
EDC16CP33
Program No.: C4
Vdiag No.: 20, 26, 28, 34,
38, 5C, 60, 62, 74
Page 420 of 510

13B-420
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
PR875OIL DILUTION SIGNAL
STATUS
DEFINITIONThis parameter indicates the vehicle mileage in miles (km) when the oil dilution
threshold is reached.
NOTESThis parameter should only be interpreted if the OCS (Oil Control System) program is
activated on the instrument panel. On the instrument panel computer, check the
configuration reading LC106 O.C.S: WITH.
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80°C without electrical consumers
The injection computer estimates the degree of engine oil dilution according to the customer's driving style.
When the dilution level reaches a certain threshold before the end of the oil change interval, the injection computer
sends a signal to the instrument panel which then displays Service required. Parameter PR875 corresponds to
the vehicle mileage at the time this signal is sent.
IMPORTANT:
When the message Service required appears on the instrument panel, the customer must arrange an immediate
oil change to prevent damage to the engine.
EDC16CP33_V5C_PR875 / EDC16CP33_V20_PR875 / EDC16CP33_V26_PR875 / EDC16CP33_V28_PR875 / EDC16CP33_V60_PR875 /
EDC16CP33_V62_PR875
EDC16CP33
Program No.: C4
Vdiag No.: 20, 26, 28, 5C,
60, 62