Page 79 of 198

13B-79
AFTER REPAIRDeal with any faults declared by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF122
PRESENTPEDAL POTENTIOMETER GANG 2 SUPPLY VOLTAGECO.1: Open circuit or short circuit to +12 volts
CC.0: Short circuit to earth
NOTESSpecial notes:
If DF122, the idling speed is stuck at 1000 rpm, the engine performance is reduced to
75%, and the level 1 warning light illuminates along with the message Faulty
injection.
CC.0
NOTESNone.
Check the connection and condition of the 6-track connector of the pedal potentiometer.
Repair if necessary.
Check the connection and condition of the black 32-track connector A of the computer.
Repair if necessary.
Measure the resistance between tracks 2 and 6 of the pedal potentiometer.
Replace the pedal potentiometer if the resistance is not 2.85 kΩ +
2.05 Ω.
Disconnect computer connector A and the pedal potentiometer connector.
Check the insulation against earth of the connection on track F2 on computer connector A.
Repair if necessary.
DDCR_V44_DF122P/DDCR_V48_DF122P
Page 80 of 198

13B-80
AFTER REPAIRDeal with any faults declared by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF122
CONTINUED
C0.1NOTESNone.
Check the connection and condition of the pedal potentiometer connector.
Repair if necessary.
Check the connection and condition of the black 32-track connector A of the computer.
Repair if necessary.
Measure the resistance between tracks 2 and 6 of the pedal potentiometer.
Replace the pedal potentiometer if the resistance is not 2.85 kΩ +
2.05 Ω.
Disconnect computer connector A and the pedal potentiometer connector.
– Check the insulation on connector A between tracks F2 and F4.
– Check the insulation against +12 V of the connection on track F2 on computer connector A.
Repair if necessary.
Check the continuity, insulation, and the absence of interference resistance on the following connections:
Sensor connector track 1 Track F1 computer connector B
Sensor connector track 2 Track G1 computer connector B
Repair if necessary.
Page 81 of 198

13B-81
AFTER REPAIRDeal with any faults declared by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF130
STOREDFLOW CAPACITY FUNCTION
NOTESSpecial notes:
If DF130, the engine may stop with the level 1 and 2 warning lights illuminated along
with the message Faulty injection.
Conditions for applying fault finding procedures to stored faults:
The fault is present with the engine running.
Check the connection and condition of the of the fuel flow actuator connector (IMV), and repair it if necessary.
Measure the resistance between tracks 1 and 2 of the flow actuator.
Replace the flow actuator if the resistance is not 5.3 Ω ± 0.5 Ω at 20°C.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connection:
Computer connector B track M4 track 1 fuel flow actuator
Repair if necessary.
Check that there is fuel present in the tank and that it is correct. Run Test 13 Diesel fuel conformity check.
Run Test 1 Low pressure circuit check.
Run Test 6 High pressure system check.
Repair if necessary.
DDCR_V44_DF130M/DDCR_V48_DF130M
Page 129 of 198

13B-129
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$090.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DDCR INJECTION
Vdiag No.: 44, 48
– Check the condition and fitting of the clutch switch.
– Check and ensure the continuity on the connection between track 1 of the clutch switch connector and track C4
of the black 32-track connector A of the injection computer.
Check and ensure that earth is on track 2 of the clutch switch connector.
Repair if necessary.
– Remove the clutch switch and test its operation:
– Replace the switch if necessary.
ET405 CLUTCH PEDAL SWITCH
NOTESSpecial note:
Only apply the checks if the INACTIVE and ACTIVE statuses are not consistent with
the pedal position.
STATUS INACTIVE with clutch pedal depressed.
Continuity between tracks insulation between tracks
Switch engaged
(Clutch pedal released)1 and 2 -
Switch released
(Clutch pedal depressed)-1 and 2
DDCR_V44_ET405/DDCR_V48_ET405
Page 130 of 198
13B-130
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$090.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DDCR INJECTION
Vdiag No.: 44, 48
– Check the condition and fitting of the clutch switch.
– Remove the clutch switch and test its operation:
– Replace the switch if necessary.
– Check and ensure the insulation against earth of the connection between track 1 of the clutch switch connector
and track C4 of the black 32-track connector A of the injection computer.
ET405
CONTINUED
STATUS ACTIVE with clutch pedal released.
Continuity between tracks insulation between tracks
Switch engaged
(Clutch pedal released)1 and 2 -
Switch released
(Clutch pedal depressed)-1 and 2
Page 138 of 198

13B-138
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$090.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DDCR INJECTION
Vdiag No.: 44, 48
ET703
CONTINUED 1
INCREASE
Status ET703 becomes PLUS when the cruise control / speed limiter + button is
pressed. This button is on the steering wheel, on the left-hand side.
To remove the driver's airbag to perform the checks in complete safety.
(see 88C, Airbag and pretensioners)
If status ET703 does not display INCREASE, check the condition of the cruise control
- speed limiter +/- button and the condition of its connector. Repair if necessary.
Measure the resistance on the following connections while pressing
the + button (on the button tracks):
• Connection code 86G of component 331.
• Connection code 86M of component 331.
If the resistance is not approximately 300 Ωcheck the continuity of the connection
when the button is not pressed. If there is continuity, replace the +/- control button.
(see MR 364 (Mégane II), MR 370 (Scénic II), Mechanical, 83D, Cruise control,
Steering wheel switch: Removal - Refitting).
DECREASEStatus ET703 becomes DECREASE when the - button of the cruise control/speed
limiter is pressed. This button is on the steering wheel, on the left-hand side.
To remove the driver's airbag to perform the checks in complete safety.
(see 88C, Airbag and pretensioners)
If status ET703 does not change to MINUS, check the condition of the cruise control
/ speed limiter +/- button, and the condition of its connector. Repair if necessary.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Measure the resistance of the following connections while pressing the "-"
button (on the button tracks):
• Connection code 86G of component 331.
• Connection code 86M of component 331.
If the resistance is not approximately 100 Ωcheck the continuity of the connection
when the button is not pressed. If there is continuity, replace the +/- control button.
(see MR 364 (Mégane II), MR 370 (Scénic II), Mechanical, 83D, Cruise control,
Steering wheel switch: Removal - Refitting).
Page 139 of 198

13B-139
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$090.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DDCR INJECTION
Vdiag No.: 44, 48
ET703
CONTINUED 2
SUSPEND
Status ET703 becomes SUSPEND when the cruise control / speed limiter 0 button is
pressed. This button is located on the steering wheel, to the right.
To remove the driver's airbag to perform the checks in complete safety.
(see 88C, Airbag and pretensioners)
If status ET703 does not become SUSPEND, check the condition of the cruise control
- speed limiter R/0 button and the condition of its connector.
If there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Measure the resistance of the following connection whilst pressing the 0 button
(on the button tracks):
• Connection code 86G of component 331.
• Connection code 86M of component 331.
If the resistance is not approximately 0 Ω, replace the R/0 control button.
If there is continuity, replace the R/0 control button (see MR 364 (Mégane II), MR 370
(Scénic II), Mechanical, 83D, Cruise control, Steering wheel switch: Removal -
Refitting).
Page 140 of 198

13B-140
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$090.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DDCR INJECTION
Vdiag No.: 44, 48
ET703
CONTINUED 3
RESUME
Status ET703 becomes RESUME when the R button of the cruise control/speed
limiter is pressed. This button is located on the steering wheel, to the right.
To remove the driver's airbag to perform the checks in complete safety.
(see 88C, Airbag and pretensioners)
If status ET703 does not change to RESUME, check the condition of the cruise
control / speed limiter R/0 button, and the condition of its connector. Repair if
necessary.
If there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Measure the resistance on the following connection while pressing
the R button (on the button tracks):
• Connection code 86G of component 331.
• Connection code 86M of component 331.
If the resistance is not approximately 900 Ω, check the continuity of the connection
when the button is not pressed. If there is continuity, replace the R/0 control button
(see MR 364 (Mégane II), MR 370 (Scénic II), Mechanical, 83D, Cruise control,
Steering wheel switch: Removal - Refitting).