Page 168 of 273

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 168V3 MR-372-J84-13B250$540.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
CRUISE CONTROL/SPEED LIMITER (continued 2)
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
8Cruise control/
speed limiter
deactivationET415:Cruise control/speed
limiter
deactivationNONE: This status is
present on the diagnostic
tool when:
The computer has been
reinitialised.
The computer has been
reprogrammed.
- STATUS 1: Traction
control request
- STATUS 2: Brake pedal
depressed.
- STATUS 3: Clutch pedal
depressed.
- STATUS 4: Cancel
button pressed
- STATUS 5: Cruise
control or speed limiter
monitoring.
- STATUS 6: Gear lever
in neutral (manual
gearbox) or neutral
position (automatic
transmission).
- STATUS 7:
Inconsistency between
the request and the
vehicle speed.
- STATUS 8: Automatic
transmission in defect
mode.
- STATUS 9: Vehicle
speed monitoring.
- STATUS 10: Monitoring
by injection computer.In the event of a fault,
consult the
interpretation of status
ET415 Cruise control/
speed limiter
deactivation.
Page 169 of 273

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 169V3 MR-372-J84-13B250$540.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
STARTING
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 full fault finding
procedure on the charging
circuit.
2StartingET238:SynchronisationDONEIn the event of a fault, refer
to fault interpretation
DF195 Camshaft/engine
speed sensor
consistency.
ET076:StartingAUTHORISEDIf status ET076 is
PROHIBITED, carry out a
complete fault finding
procedure on the
multiplex network.
3Engine
operation.ET038:EngineRUNNINGNone
4Power supplyPR071:Computer feed
voltage9 V < voltage < 16 VIn the event of a fault,
consult the interpretation
of fault DF047 Computer
supply voltage.
PR358:Sensor reference
voltage3.4 V < voltage < 3.8 VNone
Page 170 of 273
DIESEL INJECTION
Fault finding – Conformity check13B
13B - 170V3 MR-372-J84-13B250$540.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
PROTECTION
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
1Engine
immobiliserET341:Immobiliser code
programmedYESIf status ET341 is locked
on NO (see 87B,
Passenger
compartment
connection unit).
ET003:Engine
immobiliserINACTIVEIf status ET003 is locked
on ACTIVE (see 87B,
Passenger
compartment
connection unit).
2Vehicle impactET077:Impact detectedNOIn the event of a fault, refer
to the interpretation of
fault DF069 Impact
detected signal.
3StartingET076:StartingAUTHORISED:
injection authorises
startingIf status ET076 is
PROHIBITED (see 87B,
Passenger
compartment
connection unit).
Page 174 of 273

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 174V3 MR-372-J84-13B250$630.mif
NO
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET004
AC AUTHORISED
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
YES
The air conditioning authorisation only changes to YES if:
–the air conditioning request has been made by the driver (air conditioning switch in
AC or AUTO position with minimum ventilation),
–the engine is not under full load,
–the air conditioning system is not faulty.
Status ET004 remains at NO under the following conditions:
–Vehicle stopped with the ignition on,
–faults present in the air conditioning circuit,
–no air conditioning request made by the driver,
–engine under full load.
If status ET004 remains NO then the air conditioning should be authorised; check:
–that the air conditioning compressor is activated correctly,
–the air conditioning system supply fuses,
–the presence of refrigerant in the air conditioning circuit,
–that the refrigerant fluid pressure value is consistent at idle speed.
If the fault is still present, check the climate control computer faults (see 62C, Air
conditioning).
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET004
Page 175 of 273

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 175V3 MR-372-J84-13B250$630.mif
NO
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET007
PREHEATING UNIT CONTROL
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
YES
When the vehicle is started from cold, the injection computer controls the pre-
postheating unit so that the vehicle can be started.
Status ET007 becomes YES a few seconds after the ignition is switched on and during
pre/postheating.
If the vehicle does not start and status ET007 becomes YES, check:
–the F2 (70A) supply fuse on the preheating unit, located on the power supply fuse
plate in the engine connection unit, below the Protection and Switching Unit,
–the resistance of the heater plugs.
Replace any plug whose resistance is not below 2 Ω.
If the vehicle starts and status ET007 remains YES during the engine operating phase,
refer to the interpretation of faults:
–DF017 Preheating relay control circuit.
–DF025 Preheating unit diagnostic connection.
After the engine is started and the preheating phase, the injection computer should stop
the pre-postheating unit operating.
Status ET007 should become NO.
In the event that the vehicle does not start and status ET007 remains NO, check the
continuity and absence of interference resistance of the following connections:
Injection computer Track A4 grey
32-track connector CTrack 9 preheating unit
Injection computer Track E2 grey
32-track connector CTrack 8 preheating unit
Repair if necessary.
If the fault is still present, refer to the interpretation of faults:
–DF017 Preheating relay control circuit.
–DF025 Preheating unit diagnostic connection.
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET007
Page 176 of 273

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 176V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET014
CHECK COOLING FAN 1
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
NOTE:
Status ET014 test and status ET022 GMV1 low speed request change their status at the same time.
RUNNING
The low-speed engine fan unit is supplied in three scenarios:
–the engine coolant temperature is above 89 ˚C;
–the air conditioning is operating
–the injection computer has system faults that could lead to the engine overheating.
When the low-speed engine fan is supplied:
–status ET014 GMV 1 test becomes RUNNING status ET022 Low speed GMV
request becomes ACTIVE.
If the low speed GMV does not work (see 87G, engine compartment connection unit).
The low-speed engine fan assembly stops when:
–the engine coolant temperature is below 89 ˚C;
–the air conditioning is not switched on by the driver.
STOPPED
IMPORTANTWARNING
If the UPC does not detect the injection computer frames, the low speed engine
fan is supplied until the battery is completely discharged.
In the event that the low-speed engine fan assembly is faulty, the high-speed
engine fan assembly will then be activated.
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET014
Page 177 of 273

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 177V3 MR-372-J84-13B250$630.mif
STOPPED
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET015
CHECK COOLING FAN 2
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
NOTE:
Status ET015 GMV 2 test and status ET021 High speed GMV request change their status at the same time.
RUNNING
The engine fan assembly can be supplied when:
–the engine coolant temperature is above 99 ˚C.
–the injection computer has system faults that could lead to the engine overheating.
When the high speed fan is supplied:
–status ET015 GMV 2 test becomes RUNNING and status ET021 High speed GMV
request becomes ACTIVE.
The high-speed engine fan assembly stops when:
–the engine coolant temperature is below 99 ˚C;
IMPORTANTWARNING
If the UPC does not detect the injection computer frames, the low speed engine
fan is supplied until the battery is completely discharged.
In the event that the low-speed engine fan assembly is faulty, the high-speed
engine fan assembly will then be activated.
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET015
Page 182 of 273

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 182V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET042
CONTINUED 1
INACTIVEWhen the main switch is in rest position (or neutral), status ET042 is "INACTIVE".
If "CRUISE CONTROL" or "SPEED LIMITER" appears despite the main button being in
the rest position (or neutral), carry out the following operations:
Check the connections of the cruise control/speed limiter main switch.
Check for + 12 V APC on the main switch connector.
–Connection code AP43 of component 1081 (Mégane II)
–Connection code AP43 of component 1546 (Scénic II)
Disconnect the main switch and with it in the rest position, check the insulation between:
–Connection codes AP43 and 3FX of component 1081 (Mégane II)
–Connection codes AP43 and 3PD of component 1081 (Mégane II)
–Connection codes AP43 and 3FX of component 1546 (Scénic II)
–Connection codes AP43 and 3PD of component 1546 (Scénic II)
Check the continuity between connections AP43 and 3PD of component 1081
(Mégane II) and component 1546 (Scénic II) in speed limiter position.
Check the continuity between connections AP43 and 3FX of component 1081
(Mégane II) and component 1546 (Scénic II) in cruise control position.
If these checks are not in order, replace the switch.
Check the insulation, continuity and the absence of interference resistance on the
following connections:
–Connection code 3FX,
–connection code 3PD.
Between components 1081 and 120 (Mégane II)
Between components 1546 and 120 (Scénic II)
Also check the engine management computer connectors.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Repair precautions), repair the wiring, otherwise replace it.
AFTER REPAIRSwitch off the ignition and carry out a road test followed by a test with the diagnostic
tool.