Page 348 of 510
13B-348
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR042FILTERED TURBOCHARGING PRESSURE
PARAMETER
DEFINITIONThis parameter indicates the filtered turbocharging pressure in bar.
NOTESNone.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
PR042 corresponds to the average value of PR041 Turbocharging pressure.
EDC16CP33_V18_PR042 / EDC16CP33_V1C_PR042 / EDC16CP33_V54_PR042 / EDC16CP33_V20_PR042 / EDC16CP33_V58_PR042 /
EDC16CP33_V5C_PR042 / EDC16CP33_V24_PR042 / EDC16CP33_V04_PR042 / EDC16CP33_V08_PR042 / EDC16CP33_V44_PR042 /
EDC16CP33_V4C_PR042 / EDC16CP33_V34_PR042 / EDC16CP33_V38_PR042 / EDC16CP33_V74_PR042 / EDC16CP33_V28_PR042 /
EDC16CP33_V62_PR042 / EDC16CP33_V26_PR042 / EDC16CP33_V60_PR042
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 349 of 510
13B-349
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
OCR*: Opening Cyclic Ratio
PR048RAIL PRESSURE REGULATION VALVE OCR*
PARAMETER
DEFINITIONThis parameter indicates the turbocharger pressure opening cyclic ratio in %.
NOTESNone.
Conformity check: Engine stopped and ignition on
The turbo pressure opening cyclic ratio value must be:
PR048 = 15%
In the event of a fault, consult the interpretation of faults DF007 Rail pressure sensor circuit and DF053 Rail
pressure regulation function.
Conformity check: Engine running, engine coolant temperature > 80°C, without electrical consumers
The turbo pressure opening cyclic ratio value must be between:
35% < PR048 < 45%
In the event of a fault, refer to the interpretation of fault DF007.
EDC16CP33_V18_PR048 / EDC16CP33_V1C_PR048 / EDC16CP33_V54_PR048 / EDC16CP33_V20_PR048 / EDC16CP33_V58_PR048 /
EDC16CP33_V5C_PR048 / EDC16CP33_V24_PR048 / EDC16CP33_V04_PR048 / EDC16CP33_V08_PR048 / EDC16CP33_V44_PR048 /
EDC16CP33_V4C_PR048 / EDC16CP33_V34_PR048 / EDC16CP33_V38_PR048 / EDC16CP33_V74_PR048 / EDC16CP33_V28_PR048 /
EDC16CP33_V62_PR048 / EDC16CP33_V26_PR048 / EDC16CP33_V60_PR048
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 350 of 510
13B-350
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR051EGR VALVE POSITION FEEDBACK
PARAMETER
DEFINITIONThis parameter indicates the opening ratio of the EGR valve in %.
NOTESThere must be no present or stored faults.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– after a customer complaint (loss of power, smoke etc.).
– after interpretation of command AC103 EGR by-pass.
Use the Technical Note Wiring Diagram, Laguna II ph2, Vel Satis ph2, Mégane ll
ph2, Scénic ll ph2, Espace IV ph2.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
In the event of a fault, see the interpretation of faults DF209 EGR valve position sensor circuit and DF647 EGR
valve position regulation.
Sensor electrical conformity
Check the continuity and absence of interference resistance of the following connections:
•3JM between components 120 and 1460 or 169,
•3EL between components 120 and 1460 or 169,
•3GC between components 120 and 1460 or 169.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the fault is still present, contact the Techline.
EDC16CP33_V18_PR051 / EDC16CP33_V1C_PR051 / EDC16CP33_V54_PR051 / EDC16CP33_V20_PR051 / EDC16CP33_V58_PR051 /
EDC16CP33_V5C_PR051 / EDC16CP33_V24_PR051 / EDC16CP33_V04_PR051 / EDC16CP33_V08_PR051 / EDC16CP33_V44_PR051 /
EDC16CP33_V4C_PR051 / EDC16CP33_V34_PR051 / EDC16CP33_V38_PR051 / EDC16CP33_V74_PR051 / EDC16CP33_V28_PR051 /
EDC16CP33_V62_PR051 / EDC16CP33_V26_PR051 / EDC16CP33_V60_PR051
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 351 of 510
13B-351
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR053SPEED REQUESTED BY HEATING/AIR CONDITIONING
PARAMETER
DEFINITIONThis parameter indicates the engine's speed of rotation with air conditioning in rpm.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Note:
Take parameter PR053 into account only if PR037 Refrigerant pressure > 12 bar.
Conformity check: Engine stopped and ignition on
The value of the engine speed with air conditioning must be:
PR053 = 0 rpm (ignition on).
Conformity check with the engine running and engine coolant temperature > 80°C
The speed requested by the air-conditioning is increased and varies around 850 rpm.
EDC16CP33_V18_PR053 / EDC16CP33_V1C_PR053 / EDC16CP33_V54_PR053 / EDC16CP33_V20_PR053 / EDC16CP33_V58_PR053 /
EDC16CP33_V5C_PR053 / EDC16CP33_V24_PR053 / EDC16CP33_V04_PR053 / EDC16CP33_V08_PR053 / EDC16CP33_V44_PR053 /
EDC16CP33_V4C_PR053 / EDC16CP33_V34_PR053 / EDC16CP33_V38_PR053 / EDC16CP33_V74_PR053 / EDC16CP33_V28_PR053 /
EDC16CP33_V62_PR053 / EDC16CP33_V26_PR053 / EDC16CP33_V60_PR053
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 352 of 510
13B-352
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR055ENGINE SPEED
PARAMETER
DEFINITIONThis parameter indicates the engine's rotational speed in rpm.
NOTESNone.
Conformity check with engine stopped and ignition on.
The value of the engine speed must be:
PR055 = 0 rpm (ignition on).
In the event of a fault, refer to the interpretation of faults DF195 Camshaft sensor/engine speed consistency,
DF119 Camshaft sensor signal and DF120 Engine speed sensor signal.
Conformity check with the engine running and engine coolant temperature > 80°C
The value of the engine speed must be between:
750 rpm < PR055 < 850 rpm (with the engine running at idle speed).
In the event of a fault, refer to the interpretation of faults DF195, DF119 and DF120.
EDC16CP33_V18_PR055 / EDC16CP33_V1C_PR055 / EDC16CP33_V54_PR055 / EDC16CP33_V20_PR055 / EDC16CP33_V58_PR055 /
EDC16CP33_V5C_PR055 / EDC16CP33_V24_PR055 / EDC16CP33_V04_PR055 / EDC16CP33_V08_PR055 / EDC16CP33_V44_PR055 /
EDC16CP33_V4C_PR055 / EDC16CP33_V34_PR055 / EDC16CP33_V38_PR055 / EDC16CP33_V74_PR055 / EDC16CP33_V28_PR055 /
EDC16CP33_V62_PR055 / EDC16CP33_V26_PR055 / EDC16CP33_V60_PR055
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 353 of 510
13B-353
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR059INLET AIR TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the air inlet temperature in °C.
NOTESThere must be no present or stored faults.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– after a customer complaint (e.g. lack of power).
Use the Technical Note Wiring Diagram, Laguna II ph2, Vel Satis ph2, Mégane ll
ph2, Scénic ll ph2, Espace IV ph2.
Conformity check: Engine stopped and ignition on
With the ignition on the inlet air temperature varies according to the exterior temperature.
In the event of a fault, consult the interpretation of fault DF002 Air temperature sensor circuit.
Parameter PR059 ≈ PR064 Coolant temperature engine cold.
Conformity check with the engine running and engine coolant temperature > 80°C
With the engine running at idle speed the inlet air temperature varies according to the engine coolant temperature.
In the event of a fault, refer to the interpretation of fault DF002.
EDC16CP33_V18_PR059 / EDC16CP33_V1C_PR059 / EDC16CP33_V54_PR059 / EDC16CP33_V20_PR059 / EDC16CP33_V58_PR059 /
EDC16CP33_V5C_PR059 / EDC16CP33_V24_PR059 / EDC16CP33_V04_PR059 / EDC16CP33_V08_PR059 / EDC16CP33_V44_PR059 /
EDC16CP33_V4C_PR059 / EDC16CP33_V34_PR059 / EDC16CP33_V38_PR059 / EDC16CP33_V74_PR059 / EDC16CP33_V28_PR059 /
EDC16CP33_V62_PR059 / EDC16CP33_V26_PR059 / EDC16CP33_V60_PR059
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 355 of 510
13B-355
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR061EXTERIOR AIR TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the exterior air temperature in °C.
NOTESNone.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
The exterior air temperature value must be:
PR061 = 20°C (default value).
This parameter is controlled by the UCH and transmitted to the injection on the multiplex network.
In the event of a fault, run fault finding on the UCH (see 87B, Passenger compartment connection unit).
EDC16CP33_V18_PR061 / EDC16CP33_V1C_PR061 / EDC16CP33_V54_PR061 / EDC16CP33_V20_PR061 / EDC16CP33_V58_PR061 /
EDC16CP33_V5C_PR061 / EDC16CP33_V24_PR061 / EDC16CP33_V04_PR061 / EDC16CP33_V08_PR061 / EDC16CP33_V44_PR061 /
EDC16CP33_V4C_PR061 / EDC16CP33_V34_PR061 / EDC16CP33_V38_PR061 / EDC16CP33_V74_PR061 / EDC16CP33_V28_PR061 /
EDC16CP33_V62_PR061 / EDC16CP33_V26_PR061 / EDC16CP33_V60_PR061
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
Page 356 of 510
13B-356
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$121.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR063FUEL TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the fuel temperature in °C.
NOTESThere must be no present or stored faults.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– after a customer complaint (e.g. lack of power).
Use the Technical Note Wiring Diagram, Laguna II ph2, Vel Satis ph2, Mégane ll
ph2, Scénic ll ph2, Espace IV ph2.
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
The fuel temperature value must be between:
– 30°C < PR063 <90°C
PR063 = 100°C (default value).
In the event of a fault, consult the interpretation of fault DF098 Fuel temperature sensor circuit.
EDC16CP33_V18_PR063 / EDC16CP33_V1C_PR063 / EDC16CP33_V54_PR063 / EDC16CP33_V20_PR063 / EDC16CP33_V58_PR063 /
EDC16CP33_V5C_PR063 / EDC16CP33_V24_PR063 / EDC16CP33_V04_PR063 / EDC16CP33_V08_PR063 / EDC16CP33_V44_PR063 /
EDC16CP33_V4C_PR063 / EDC16CP33_V34_PR063 / EDC16CP33_V38_PR063 / EDC16CP33_V74_PR063 / EDC16CP33_V28_PR063 /
EDC16CP33_V62_PR063 / EDC16CP33_V26_PR063 / EDC16CP33_V60_PR063
EDC16CP33
Program No.: C4
VDiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74