13B-108
DIESEL INJECTION
Fault finding - Interpretation of faults
13B
V10 MR-372-J84-13B150$376.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF1070
PRESENT
OR
STOREDCOLD LOOP
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present with the engine running and a heating and air
conditioning request
Priorities when dealing with a number of faults:
Firstly, deal with the following faults:
– DF049 Refrigerant sensor circuit if it is present or stored.
When the fault is present or stored, the heating and air conditioning system is inhibited.
Check fuse F22 (10A) of the UPC and the condition of the air conditioning compressor connector.
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the air conditioning compressor wiring.
If the wiring is faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Manually check if the compressor is jammed (turn the clutch plate manually to check that there is no point of
resistance). In the event of sticking, replace the air conditioning compressor (see MR 364 (Mégane II) or 370
(Scénic II), Mechanical, Heating and air conditioning system, 62A, Air conditioning, Compressor: Removal
- Refitting).
Top up with freon, check for any leaks and repair if necessary (see MR 364 (Mégane II) or 370 (Scénic II),
Mechanical, Heating and air conditioning system, 62A, Air conditioning, Refrigerant circuit: check,
Refrigerant circuit: Draining - Filling).
AFTER REPAIRDeal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF1070/EDC16_V48_DF1070/EDC16_V4C_DF1070
13B-109
DIESEL INJECTION
Fault finding - Conformity check13B
V10 MR-372-J84-13B150$423.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4CDIESEL INJECTION
Fault finding - Conformity check
MAIN COMPUTER STATUSES AND PARAMETERS
NOTESOnly carry out this conformity check after carrying out a complete check using
the diagnostic tool. The values shown in this conformity check are given as examples.
Test conditions: engine stopped, ignition on.
Order FunctionParameter or Status
Check or ActionDisplay and Notes Fault finding
1 Vehicle impact ET077:Impact detected YES or NOIn the event of a fault, refer
to the interpretation of fault
DF069 Impact detected
signal.
2 Power supplyET001: + After ignition
computer feedPRESENT, ignition on
In the event of a fault carry
out fault finding on the
charge circuit.
PR071: Computer feed
voltage9 V < X < 16 V
PR358: Sensor
reference
voltage3.47 V < X < 3.75 V
(Average of the three
sensor feed voltages)In the event of a fault,
consult the interpretation of
faults DF011 Sensor feed
voltage no. 1, DF012
Sensor feed voltage no. 2
and DF013 Sensor feed
voltage no. 3.
PR076: Refrigerant
sensor voltage0V
for fault DF049 Refrigerant
sensor circuit.
3 Engine running PR055: Engine speedGives the engine's
speed in rpm.
With the ignition on
0rpmIn the event of a fault,
consult the interpretation of
fault DF005 Engine speed
sensor circuit.
4Injection
configurationET104: Injector code
useYES or NO
or
DEFECTIVEThis status indicates that the
IMA function is activated. In
the event of a fault, refer to
the fault finding procedure
for fault DF276 Injector
code programming.
EDC16_V44_CCONF/EDC16_V48_CCONF/EDC16_V4C_CCONF
MR-372-J84-13B150$423.mif
13B-110
DIESEL INJECTION
Fault finding - Conformity check13B
V10 MR-372-J84-13B150$423.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
MAIN COMPUTER STATUSES AND PARAMETERS (continued)
NOTESOnly carry out this conformity check after carrying out a complete check using the
diagnostic tool. The values shown in this conformity check are given as examples.
Test conditions: engine stopped, ignition on.
Order FunctionParameter or Status
Check or ActionDisplay and Notes Fault finding
5 PressurePR035:Atmospheric
pressureIndicates the
atmospheric pressure
in mbar.
The sensor is built into
the computer.
Default value:
750 mbarIn the event of a fault,
consult the interpretation
of fault DF003 Atmospheric
pressure sensor circuit.
PR038:Rail pressure0
of fault DF007 Rail pressure
sensor circuit.
6 TemperaturePR059: Inlet air
temperatureIndicates the inlet air
temperature
Ignition on
PR061 = PR059
Default value: 20°C In the event of a fault, refer
to the interpretation
of parameter PR059.
PR064: Coolant
temperatureShows the engine
coolant temperature
in °C
Default value: 119°C.In the event of a fault,
refer to the interpretation
ofDF001 Coolant
temperature sensor
circuit.
7 Preheating ET007: Pre-postheating
controlINACTIVE
or
ACTIVEIn the event of a fault,
refer to the interpretation
of statusET007.
8 Torque PR015: Engine torqueX = 0 NmNone.
9Charging
circuit PR016:Alternator flow X = 0 mAIn the event of a fault,
check the charge circuit.
13B-111
DIESEL INJECTION
Fault finding - Conformity check13B
V10 MR-372-J84-13B150$423.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
MAIN COMPUTER STATUSES AND PARAMETERS (continued)
NOTESOnly carry out this conformity check after carrying out a complete check using the
diagnostic tool. The values shown in this conformity check are given as examples.
Test conditions: engine stopped, ignition on.
Order FunctionParameter or Status
Check or ActionDisplay and Notes Fault finding
10 Speed signal PR089: Vehicle speed Gives the vehicle
speed in km/h. This
parameter is
transmitted by the ABS
computer. This signal
is transmitted to the
injection system by the
multiplex network.In the event of a fault test
the multiplex network.
(see 38C ABS to deal with
any faults.)
11Reverse gear
signalET035: Reverse gear
signalABSENTor
PRESENTNone.
13B-112
DIESEL INJECTION
Fault finding - Conformity check13B
V10 MR-372-J84-13B150$423.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
AIR CIRCULATION (TURBOCHARGING/INLET)
NOTESOnly carry out this conformity check after carrying out a complete check using the
diagnostic tool. The values shown in this conformity check are given as examples.
Test conditions: engine stopped, ignition on.
Order FunctionParameter or Status
Check or ActionDisplay and Notes Fault finding
1 Engine speed PR055:Engine speedIndicates the engine's
speed of rotation in
rpm. With the ignition
on PR55 = 0 rpm.In the event of a fault,
refer to the interpretation
of fault DF005 Engine
speed sensor circuit.
2 TemperaturePR061:Exterior air
temperatureGives the exterior air
temperature in °C. This
parameter is managed
by the UCH and
transmitted to the
injection on the
multiplex network.
Default value: 20°CIn the event of a fault,
(see 87B carry out fault
finding on the UCH).
PR059:Inlet air
temperatureIgnition on
Default value: 20°C
PR061 = PR059In the event of a fault,
refer to the interpretation
of fault DF039 Inlet air
temperature sensor
circuit.
3 TurbochargingPR041:Turbocharging
pressurePR041 = PR035 =
Atmospheric
pressureIn the event of a fault,
consult the interpretation
of fault DF004
Turbocharging pressure
sensor circuit.
PR009:Turbocharging
pressure
setpoint790 < X < 1010 mbarNone.
PR047:Turbocharging
pressure OCRX= 5%
The opening cyclic ratio
should be identical to the
correction of the solenoid
valve position. PR011:Turbocharging
solenoid valve
position sensorX= 5%
13B-113
DIESEL INJECTION
Fault finding - Conformity check13B
V10 MR-372-J84-13B150$423.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
AIR CIRCULATION (TURBOCHARGING/INLET) (CONT'D)
NOTESOnly carry out this conformity check after carrying out a complete check using the
diagnostic tool. The values shown in this conformity check are given as examples.
Test conditions: engine stopped, ignition on.
Order FunctionParameter or Status
Check or ActionDisplay and Notes Fault finding
4 Air circulationPR035:Atmospheric
pressureIndicates the
atmospheric pressure
in mbar. The sensor is
built into the computer.
Default value:
750 mbarIn the event of a fault,
consult the interpretation of
fault DF003 Atmospheric
pressure sensor circuit.
PR132:Air flowX = 0 kg/hIn the event of a fault,
consult the interpretation
of fault DF056 Air flow
sensor circuit.
PR050:Damper flap
OCRX= 5%In the event of a fault,
consult the interpretation
of fault DF067 Damper
control circuit.
5 Sensor feedPR081:Inlet
temperature
sensor voltage1.90 < X < 2.10 V
Default value: 5 VIn the event of a fault,
refer to the interpretation
of fault DF039 "Inlet air
temperature circuit"
PR079:Atmospheric
pressure sensor
voltage3.80 < X < 4 VIn the event of a fault,
consult the interpretation of
fault DF003 Atmospheric
pressure sensor circuit.
PR073:Air flowmeter
feed voltageIgnition on
U= 0.6V
Safe value: 0 VIn the event of a fault,
refer to the interpretation
of fault DF013 Sensor
supply voltage no. 3.
13B-114
DIESEL INJECTION
Fault finding - Conformity check13B
V10 MR-372-J84-13B150$423.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
FUEL CIRCUIT
NOTESOnly carry out this conformity check after carrying out a complete check using
the diagnostic tool. The values shown in this conformity check are given as examples.
Test conditions: engine stopped, ignition on.
Order FunctionParameter or Status
Check or ActionDisplay and Notes Fault finding
1 Engine speed PR055: Engine speedIndicates the engine's
speed of rotation in
rpm.
Ignition on
PR055= 0rpmIn the event of a fault,
consult the interpretation
of fault DF005 Engine
speed sensor circuit.
2 Temperature PR063: Fuel
temperatureShows the fuel
temperature
Default value: 100°CIn the event of a fault,
consult the interpretation
of fault DF098 Fuel
temperature sensor
circuit.
3 PressurePR008: Rail reference
pressureIndicates the
theoretical pressure
value for optimum
engine operation
X = 250 barIn the event of a fault,
consult the interpretation
of fault DF053 Rail
pressure regulation
function.
PR048: Rail pressure
regulation valve
OCRX= 15%
In the event of a fault,
consult the interpretation
of fault DF007 Rail
pressure sensor circuit.
PR038: Rail pressureX = 0 bar
Default value:
250 bar.
PR213: Rail pressure
loop differenceX = PR008 - PR038The fuel pressure variation is
the difference between the
rail pressure and the rail
pressure setpoint. In the
event of a fault, consult
the interpretation of fault
DF007 Rail pressure
sensor circuit.
13B-115
DIESEL INJECTION
Fault finding - Conformity check13B
V10 MR-372-J84-13B150$423.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
FUEL CIRCUIT (continued)
NOTESOnly carry out this conformity check after carrying out a complete check using the
diagnostic tool. The values shown in this conformity check are given as examples.
Test conditions: engine stopped, ignition on.
Order FunctionParameter or Status
Check or ActionDisplay and Notes Fault finding
4 Flow PR017: Fuel flowIgnition on
PR017= 0mg/stNONE
5 Rail currentPR006: Rail pressure
regulator currentX = 395 mA
Default value:
1600 mA or 4 mAIn the event of a fault,
consult the interpretation
of fault DF007 Rail
pressure sensor circuit.
PR007: Rail pressure
regulator current
setpointX = 400 mA
Default value:
1600 mA
6 Sensor voltagePR082: Fuel
temperature
sensor voltage1.8 V < X < 3 V
Default value: 5 VIn the event of a fault,
consult the interpretation
of fault DF098 Fuel
temperature sensor
circuit.
PR080: Rail pressure
sensor voltageX= 0.5V
Default value: 5 VIn the event of a fault, refer
to the interpretation of fault
DF013 Sensor supply
voltage no. 3.
7 Fuel flowPR364:Cylinder no. 1
fuel flow
correction
0.0 mg/stIn the event of a fault, refer
to test 1 INJECTOR TEST. PR405:Cylinder no. 2
fuel flow
correction
PR406:Cylinder no. 3
fuel flow
correction
PR365:Cylinder no. 4
fuel flow
correction