Page 234 of 431

13B-234V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET205
ET206
ET207THERMOPLUNGER 1 RELAY CONTROLTHERMOPLUNGER 2 RELAY CONTROL
THERMOPLUNGER 3 RELAY CONTROL
STATUS DEFINITIONACTIVE: This status indicates that the thermoplunger is supplied.
INACTIVE: This status indicates that the thermoplunger is not supplied.
NOTESStatus only available on certain Vdiag48 (depending on vehicle equipment).
INACTIVEStatuses ET205, ET206, ET207 are INACTIVE with the ignition on and the engine
stopped, or when the engine is warm.
ACTIVEStatuses ET205, ET206 and ET207 are ACTIVE when the engine is started, the
engine coolant temperature is low (< 15°C) and the air temperature is low (< 5°).
This program allows the engine coolant to be heated to enable the passenger
compartment to be heated.
The thermoplungers also act both to load the engine to improve regeneration of the
particle filter
To control the operation of the thermoplunger relays, run the following commands:
AC063 Thermoplunger no. 1 relay.
AC064 Thermoplunger no. 2 relay.
AC031 Thermoplunger no. 3 relay.
In the event of a fault, refer to the interpretation of faults:
DF032 Thermoplunger 1 relay control circuit.
DF033 Thermoplunger 2 relay control circuit.
DF034 "Heating element 3 relay control circuit".
EDC16C36_V48_ET205/EDC16C36_V48_ET206/EDC16C36_V48_ET207/EDC16C36_V58_ET205/EDC16C36_V58_ET206/
EDC16C36_V58_ET207
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 48, 58
Page 235 of 431

13B-235V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET238SYNCHRONISATION
STATUS DEFINITIONSynchronisation is carried out during the engine starting phase. The camshaft position
sensor and the TDC sensor are synchronised. Once this synchronisation has been
carried out, it enables the computer to identify cylinder n°1 and to ascertain the precise
position of the cylinder's top dead centre.
Synchronisation also allows the computer to determine the injection strategy.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
COMPLETEDStatus ET238 is DONE when the engine is started. The computer has identified
cylinder no. 1 and has identified the exact top dead centre position. Injection phasing
and engine management are now possible, and the engine should be working
properly.
NOT
PERFORMEDStatus ET238 is NOT COMPLETED if the engine has been stopped with the + after
ignition on.
If status ET238 remains NOT COMPLETED after an attempted start, consult the
interpretation of fault DF195 Camshaft sensor/engine speed consistency.
EDC16C36_V44_ET238/EDC16C36_V4C_ET238/EDC16C36_V48_ET238/EDC16C36_V50_ET238/EDC16C36_V54_ET238/
EDC16C36_V58_ET238
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 236 of 431

13B-236V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET300RICHNESS REGULATION
STATUS DEFINITIONACTIVE: This indicates that the richness is regulated.
INACTIVE: This status indicates that the richness is not regulated.
NOTESSpecial notes:
This status only concerns certain F9Q818 engines. Check that the vehicle is definitely
equipped with a richness ratio sensor.
Conformity check with engine stopped and ignition on
INACTIVEThe status is INACTIVE when the engine is not running.
In the event of a fault, consult the interpretation of fault DF967 Richness ratio sensor
circuit.
Engine running, engine coolant temperature > 80°C
ACTIVEThe status is ACTIVE when the engine is running.
In the event of a fault, consult the interpretation of fault DF967 Richness ratio sensor
circuit.
EDC16C36_V44_ET300/EDC16C36_V48_ET300/EDC16C36_V4C_ET300
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 48, 4C
Page 237 of 431

13B-237V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET341IMMOBILISER CODE PROGRAMMED
STATUS DEFINITIONYES: This status indicates that the immobiliser code has been programmed.
NO: This status indicates that the immobiliser code has not been programmed.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
YESStatus ET341 is YES if dialogue is possible between the UCH computer and the
injection computer and if the key code is recognised.
Engine starting authorisation is only given if the code is correctly recognised by the
UCH computer and status ET003: Engine immobiliser is INACTIVE.
In the event of a fault (see 87B, passenger compartment connection unit,
conformity check).
NOStatus ET341 is NO if dialogue is not possible between the UCH computer and the
injection computer (status ET003 Engine immobiliser remains ACTIVE).
This fault may be caused by incorrect key programming or a lack of key programming.
In this case, refer to the UCH fault-finding note (see 87B, Passenger compartment
connection unit) and follow the key programming procedure.
If the key programming is not the cause, run a multiplex network test (see 88B,
Multiplexing) and check that dialogue between the UCH and the injection computer
is possible.
If dialogue is not established, contact Techline.
EDC16C36_V44_ET341/EDC16C36_V4C_ET341/EDC16C36_V48_ET341/EDC16C36_V50_ET341/EDC16C36_V54_ET341/
EDC16C36_V58_ET341
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58, 58
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13B-238V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET405CLUTCH PEDAL SWITCH
STATUS DEFINITIONACTIVE: This status indicates that the clutch pedal is depressed.
INACTIVE: This status indicates that the clutch pedal is released.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Use the Mégane II ph2, Scénic II ph2 Technical Note wiring diagram.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
ACTIVEClutch pedal depressed.
Non-conformity of the brake signals and/or the clutch switch signals can cause the
engine to race during gear changes.
In the event of a fault, check the electrical conformity of the sensor.
INACTIVEClutch pedal released.
Non-conformity of the brake signals and/or the clutch switch signals can cause the
engine to race during gear changes.
In the event of a fault, check the electrical conformity of the sensor.
EDC16C36_V44_ET405/EDC16C36_V4C_ET405/EDC16C36_V48_ET405/EDC16C36_V50_ET405/EDC16C36_V54_ET405/
EDC16C36_V58_ET405
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 240 of 431

13B-240V9 MR-372-J84-13B450$131.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET415CRUISE CONTROL/SPEED LIMITER DEACTIVATION
STATUS DEFINITIONThis status varies according to engine specifications.
NOTESSpecial notes:
Apply the conformity check to see if the statuses are inconsistent with the operating
programs of the system.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
> 80°C
STATUS 1Traction control request.
STATUS 2Brake pedal depressed.
STATUS 3Clutch pedal depressed.
STATUS 4Suspend button pressed.
STATUS 5Cruise control or speed limiter monitoring.
STATUS 6Inconsistency between the request and the vehicle speed. Gear lever in neutral
(manual gearbox) or the neutral position (automatic gearbox).
EDC16C36_V44_ET415/EDC16C36_V4C_ET415/EDC16C36_V48_ET415/EDC16C36_V50_ET415/EDC16C36_V54_ET415/
EDC16C36_V58_ET415
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 249 of 431

13B-249V9 MR-372-J84-13B450$132.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET703CRUISE CONTROL/SPEED LIMITER BUTTONS
STATUS DEFINITIONRESUME: R button pressed.
SUSPEND: 0 button pressed.
INCREASE: Increase button pressed.
DECREASE: Decrease button pressed.
INACTIVE: This status indicates that no button has been pressed.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Use the Mégane II ph2, Scénic II ph2 Technical Note wiring diagram.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
INACTIVEWhen that no button has been pressed.
In the event of a fault, consult the interpretation of status ET703.
SUSPEND'0' button pressed.
In the event of a fault, consult the interpretation of status ET703.
RESUMER button pressed.
In the event of a fault, consult the interpretation of status ET703.
EDC16C36_V44_ET703/EDC16C36_V4C_ET703/EDC16C36_V48_ET703/EDC16C36_V50_ET703/EDC16C36_V54_ET703/
EDC16C36_V58_ET703
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 253 of 431

13B-253V9 MR-372-J84-13B450$132.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET704
ET705BRAKE SWITCH NO. 1BRAKE SWITCH NO. 2
STATUS DEFINITIONACTIVE: This status indicates that the brake pedal is depressed.
INACTIVE: This status indicates that the brake pedal is released.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Note:
Statuses ET704 and ET705 should change status at the same time. If they are
inconsistent, consult the interpretation of fault DF228 Brake signal.
Use the Mégane II ph2, Scénic II ph2 Technical Note wiring diagram.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
ACTIVEBrake pedal depressed.
A brake signal non-conformity may cause the engine to race during gear changes.
In the event of a fault, apply the interpretation of statuses ET704 Brake contact no. 1
and ET705 Brake contact no. 2.
INACTIVEBrake pedal released.
A brake signal non-conformity may cause the engine to race during gear changes.
In the event of a fault, apply the interpretation of statuses ET704 Brake contact no.1
and ET705 Brake contact no. 2.
EDC16C36_V44_ET704/EDC16C36_V4C_ET704/EDC16C36_V48_ET704/EDC16C36_V50_ET704/EDC16C36_V54_ET704/
EDC16C36_V58_ET704/EDC16C36_V44_ET705/EDC16C36_V4C_ET705/EDC16C36_V48_ET705/EDC16C36_V50_ET705/
EDC16C36_V54_ET705/EDC16C36_V58_ET705
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58