DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-56V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF025
PRESENT
OR
STOREDPRE-POSTHEATING UNIT DIAGNOSTIC LINE
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after several attempts to start the engine, or following
actuator command AC001 Preheating unit.
Special notes:
It is difficult or even impossible to start the engine when cold.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
Check the pre-postheating unit connections.
Check the connections on all the heater plugs.
Repair if necessary.
Check fuse F2 (70A) on the power supply fuse board.
Check the resistance of the heater plugs:
Replace any plug whose resistance is not below 2 Ω at + 20˚C.
Check the continuity and absence of interference resistance of the following connections:
preheating unit track 1 cylinder 3 heater plug
preheating unit track 2 cylinder 1 heater plug
preheating unit track 6 cylinder 4 heater plug
preheating unit track 7 cylinder 2 heater plug.
Check for presence of + 12 V on track 4 of the pre-postheating unit (via fuse F2, 70A).
If the fault is still present,
Check the injection computer connections.
Check the following connections for continuity and make sure there is no extraneous resistance:
Injection computer grey 32-track connector C, track A4 track 3 preheating unit connector
Injection computer grey, 32-track connector C, track E2 track 8 of the preheating unit connector
If the fault is still present, replace the pre-postheating unit.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF025
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B -105V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF097
PRESENT
OR
STOREDCAMSHAFT SENSOR CIRCUIT
1.DEF : No signal
2.DEF : Inconsistent signal
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the engine is started or following a road test.
A drop in engine speed followed by nominal behaviour from the vehicle is possible.
Special notes:
If this fault is present:
–It is impossible to start the vehicle,
–the level 1 warning light is lit.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
1.DEF
2.DEF
NOTESCheck the conformity of the + 12 V after relay supply line,
from track 2 of the UPC PPM1 connector.
(Use the Wiring Diagrams for the vehicle)
Check the camshaft sensor connections.
Check the injection computer connections.
Check that the camshaft sensor is correctly positioned and mounted.
Also check the general condition, (damaged housing, heating up, etc.)
Carry out the necessary repairs.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF097
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B -132V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
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 with a heating and air
conditioning system request.
Priorities when dealing with a number of 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 the refrigerant, 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 followed by another check with the diagnostic tool.
EDC16_V51_DF1070
DIESEL INJECTION
Fault finding – Conformity check13B
13B - 142V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
IGNITION/PREHEATING
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test conditions: ENGINE OFF, IGNITION ON.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1Power supplyET001:Computer + after
ignition feedPRESENTIn the event of a fault,
perform fault finding for
DF047 Computer supply
voltage.
2EngineET038:EngineSTOPPEDNone
PR055:Engine speedGives the engine's
speed in rpmIn the event of a fault, refer
to the interpretation for
fault DF005 Engine
speed sensor circuit.
3TemperaturePR064:Coolant
temperatureShows the engine
coolant temperature
in ˚C
Default value: 119 ˚CIn the event of a fault, refer
to the interpretation of
DF001 Coolant
temperature sensor
circuit.
PR059:Inlet air
temperatureIndicates the inlet air
temperature in ˚C
Default value: 20 ˚CIn the event of a fault, refer
to the interpretation of
fault DF039 Inlet air
temperature sensor
circuit
4PreheatingET007:Preheating unit
controlStatus ET007 is
ACTIVE a few
seconds after the
ignition is switched
on and for the
postheatingIn the event of a fault
(ET007 locked on
ACTIVE), consult the
interpretation of fault
DF017 Preheating unit
control circuit.
5Power supplyPR071:Computer feed
voltage9 V < voltage < 16 VIn the event of a fault,
consult the interpretation
of fault DF047 computer
supply voltage.
DIESEL INJECTION
Fault finding – Conformity check13B
13B - 146V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
HEATING
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test conditions: ENGINE OFF, IGNITION ON.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1Coolant
temperaturePR064:Coolant
temperatureShows the engine coolant
temperature in ˚C
Default value: 119 ˚CIn the event of a fault, refer
to the interpretation of
DF001 Coolant
temperature sensor
circuit.
2Passenger
Compartment
Heating
Resistors (RCH)ET111:Set number of
Passenger
Compartment
Heating
ResistorsDepending on the
requirements of the
injection system
(e.g. torque reduction,
power requirements), the
injection computer sets
the number of activated
passenger compartment
heating resistors
(no more or no fewer than
required)If there is a fault,
(see 87B, Passenger
compartment
connection unit).
ET112:Passenger
Compartment
Heating
Resistor cut-offStatus ET112 shows
whether the injection
computer has requested
the passenger
compartment heating
resistors to be cut out
ET112 = YES
DIESEL INJECTION
Fault finding – Conformity check13B
13B - 161V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
IGNITION/PREHEATING
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test Conditions: ENGINE AT IDLE SPEED, COOLANT TEMPERATURE > 80 ˚C.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1Power supplyET001:Computer + after
ignition feedPRESENTIn the event of a fault,
carry out a fault finding
procedure on the charge
circuit.
2EngineET038:EngineRUNNINGNone
PR055:Engine speedGives the engine's
speed in rpmIn the event of a fault, refer
to the interpretation for
fault DF005 Engine
speed sensor circuit.
3TemperaturePR058:Air temperatureIndicates the inlet air
temperature in ˚C
Default value: 20 ˚CIn the event of a fault, refer
to the interpretation of
fault DF039 Inlet air
temperature sensor
circuit
PR064:Coolant
temperatureShows the engine
coolant temperature
in ˚C
Default value: 119 ˚CIn the event of a fault, refer
to the interpretation of
DF001 Coolant
temperature sensor
circuit.
4PreheatingET007:Preheating unit
controlStatus ET007 is
ACTIVE a few
seconds after the
ignition is switched
on and for the
postheatingIn the event of a fault,
(ET007 locked in
ACTIVE), refer to the
interpretation of fault
DF017 Preheating unit
control circuit.
5Power supplyPR071:Computer feed
voltage9 V < voltage < 16 VIn the event of a fault,
consult the interpretation
of fault DF047 computer
supply voltage.
DIESEL INJECTION
Fault finding – Conformity check13B
13B - 165V3 MR-372-J84-13B250$540.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
HEATING
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test Conditions: ENGINE AT IDLE SPEED, COOLANT TEMPERATURE > 80 ˚C.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1Coolant
temperaturePR064:Coolant
temperatureShows the engine coolant
temperature in ˚C
Default value: 119 ˚CIn the event of a fault, refer
to the interpretation of
DF001 Coolant
temperature sensor
circuit.
2Passenger
Compartment
Heating
Resistors (RCH)ET111:Set number of
Passenger
Compartment
Heating
ResistorsDepending on the
requirements of the
injection system
(e.g. torque reduction,
power requirements), the
injection computer sets
the number of activated
passenger compartment
heating resistors
(no more or no fewer than
required)
ET111 = NOIf there is a fault,
(see 87B, Passenger
compartment
connection unit).
ET112:Passenger
Compartment
Heating
Resistor cut-offStatus ET112 shows
whether the injection
computer has requested
the passenger
compartment heating
resistors to be cut out
ET112 = NO
DIESEL INJECTION
Fault finding – Status summary table13B
13B - 171V3 MR-372-J84-13B250$585.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Status summary table
Tool status Diagnostic tool title
ET001+ After ignition computer feed
ET003Engine immobiliser
ET004Air conditioning authorisation
ET007Preheating unit control
ET014Monitor cooling fan 1
ET015Monitor cooling fan 2
ET021High speed fan assembly request
ET022Low speed fan assembly request
ET038Engine
ET042Cruise control/speed limiter
ET076Starting
ET077Impact detected
ET079Air conditioning present
ET088Compressor actuation request
ET104Injector code use
ET111Set number of passenger compartment heating resistors (RCH)
ET112Passenger compartment heating resistor cut-off
ET123Brake contact signal no. 2
ET233Clutch pedal
ET238Synchronisation
ET341Immobiliser code programmed
ET405Clutch pedal switch
ET415Deactivation of cruise control/speed limiter
ET589Electric coolant pump control (turbocharger)
ET651EGR programming cut-off
ET703Cruise control/speed limiter buttons
ET704Brake switch no. 1
ET705Brake switch no. 2
MR-372-J84-13B250$585.mif