2011 RENAULT SCENIC Engine And Peripherals EDC16 Injection Workshop Manual

13B-65
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF051
PRESENT
OR
STOREDCRUISE CONTROL/SPEED LIMITER FUNCTION
1.DEF : signal incoherence
2.DEF : inconsistent vehicle speed
3.DEF : controls at the steering wheel
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.
Special notes:
The cruise control/speed limiter function is inhibited.
Use bornier Elé. 1681 for all operations on the injection computer connectors.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
If fault DF051 is present, refer to the Cruise control/Speed limiter section of the conformity check and refer to
interpretation of statuses ET042 Cruise control/Speed limiter, ET415 Cruise control/Speed limiter
deactivation and ET703 Cruise control/Speed limiter buttons.
Check that by pressing the buttons the statuses change and that, with the ignition switched on, all the values
are correct.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF051/EDC16_V48_DF051/EDC16_V4C_DF051

13B-66
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF053
PRESENT
OR
STORED
RAIL PRESSURE REGULATION FUNCTION
CC.1 : Short circuit to + 12 V
CC.0 : Short circuit to earth
CO : Open circuit
1.DEF : Internal electrical fault
2.DEF : Measured pressure too low
3.DEF : Measured pressure too high
4.DEF : Insufficient pressure
5.DEF : Pressure < minimum
6.DEF : Pressure > maximum
7.DEF : Extensive pump command
8.DEF : significant pump control at idle speed
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present following a road test or after attempting to start the engine.
Special notes:
If the fault is present:
– It is not possible to start the engine.
– the level 2 warning light is lit.
Use bornier Ele. 1681 for all operations on the injection computer connectors.
CC.1
NOTESNone.
Check the rail pressure regulator connectors.
Check the injection computer connections.
Check the low pressure circuit.
Check the conformity of the fuel used, apply test 5 Diesel fuel conformity check.
Check the injector return flow, run test 1 Injector test.
Check the operation of the overpressure valve if fitted to the vehicle, run test 6 Incorrect operation of the
overpressure valve.
Repair if necessary.
Measure the resistance of the rail pressure regulator between tracks 1 and 2.
If the resistance is not 3Ω ±1 at 20°C, replace the injection pump.
Check the continuity and insulation from + 12 V on the following connection:
Injection computer brown 48-track connector B, track M4 Track 2 of the fuel flow actuator
If the fault is still present, replace the injection pump.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V08_DF053/EDC16_V10_DF053/EDC16_V14_DF053

13B-67
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF053
CONTINUED 1
CC.0
CO
NOTESNone.
Check the fuel flow regulator connections.
Check the injection computer connections.
Check the low pressure circuit.
Check the conformity of the fuel used, apply test 5 Diesel fuel conformity check.
Check the injector return flow, run test 1 Injector test.
Check the operation of the overpressure valve if fitted to the vehicle, run test 6 Incorrect operation of the
overpressure valve.
Repair if necessary.
Measure the resistance of the flow regulator between tracks 1 and 2.
If the resistance is not 3Ω ±1 at 20°C, replace the injection pump.
Check the continuity and insulation from earth of the following connection:
Injection computer brown 48-track connector B, track M4 Track 2 of the fuel flow regulator
With the ignition on, check for + 12 V after relay feed on track 1 of the fuel flow regulator.
If the fault is still present, replace the injection pump.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-68
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
*Opening cyclic ratioDF053
CONTINUED 2
1.DEF
NOTESNone.
Check the rail pressure regulator connectors.
Check the injection computer connections.
Check the low pressure circuit.
Check the conformity of the fuel used, apply test 5 Diesel fuel conformity check.
Check the injector return flow, run test 1 Injector test.
Check the operation of the overpressure valve if fitted to the vehicle, run test 6 Incorrect operation of the
overpressure valve.
Repair if necessary.
Measure the resistance of the flow regulator between tracks 1 and 2.
If the resistance is not 3Ω ±1 at 20°C, replace the injection pump.
Check the continuity and absence of interference resistance of the following connections:
Injection computer brown 48-track connector B, track M4 Track 2 of the fuel flow regulator
UPC, connector PPM1, track 1 Track 1 of the rail pressure
regulator
Repair if necessary.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-69
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF053
CONTINUED 3
2.DEF to
8.DEF
NOTESNone.
Check the operation of the overpressure valve if fitted to the vehicle, run test 6 Incorrect operation of the
overpressure valve.
In the event of rail overpressure:
Check that the injectors are operating correctly (see Component test, Test 1, Injector Test).
Check that the rail pressure sensor is operating correctly using command AC011 Rail pressure regulator.
Display parameter PR038 Rail pressure, and refer to the conformity check to check the operating values.
If these checks do not indicate any abnormality and if the fault is still present, replace the injection pump.
in the event of rail underpressure:
Check that the rail pressure sensor is operating correctly using command AC011 Rail pressure regulator.
Display parameter PR038 Rail pressure, and refer to the conformity check to check the operating values.
Check the low pressure diesel circuit priming.
Check the conformity of the diesel filter connections.
Check the condition of the filter (clogging and water saturation).
Check that there are no air bubbles between the filter and the high pressure pump.
Check the low and high pressure diesel fuel circuit sealing (visual inspections, odour, etc.): pump housing,
pressure relief valve, pipes, rail and injector unions, injector wells, etc.
Check that the injectors are operating correctly (see Component test, Test 1, Injector Test).
Carry out the necessary operations.
If the fault is still present, replace the injection pump.
If the fault is still present, replace the injection pump.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

13B-70
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF054
PRESENT
OR
STOREDTURBOCHARGING SOLENOID VALVE CONTROL CIRCUIT
CC.1 : short circuit to + 12 V
CC.0 : short circuit to earth
CO : open circuit
1.DEF : internal electrical fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after:
– the engine is started,
– a road test,
– actuator command AC004 Turbocharging solenoid valve.
Special notes:
If the fault is present:
– turbocharging is no longer authorised,
– the EGR function is inhibited,
– the level 1 warning light is illuminated.
Use bornier Elé. 1681 for all operations on the injection computer connectors.
CC.1
NOTESNone.
Check the turbocharging solenoid valve connections.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the turbocharging solenoid valve between its tracks 1 and 2:
If the resistance displayed is not 15.4Ω ±0.7 at 20°C, replace the turbocharging solenoid valve.
Check the continuity and insulation from + 12 V of the following connection:
Injection computer grey 32-track connector C, track E1 Track 1 turbocharging solenoid valve
Repair if necessary.
If the fault is still present, replace the turbocharging solenoid valve.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF054/EDC16_V48_DF054/EDC16_V4C_DF054

13B-71
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF054
CONTINUED 1
CC.0
CO
NOTESNone.
Check the turbocharging solenoid valve connections.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the turbocharging solenoid valve between its tracks 1 and 2:
If the resistance displayed is not 15.4Ω ±0.7 at 20°C, replace the turbocharging solenoid valve.
Check the continuity and insulation from earth of the following connections:
Injection computer grey 32-track connector C, track E1 Track 1 turbocharging solenoid valve
UPC connector PPM1 track 1 Track 2 turbocharging solenoid valve
Repair if necessary.
If the fault is still present, replace the turbocharging solenoid valve.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.

13B-72
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$329.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
*Opening cyclic ratio.DF054
CONTINUED 2
1.DEF
NOTESNone.
Check the turbocharging solenoid valve connections.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the turbocharging solenoid valve between its tracks 1 and 2:
If the resistance displayed is not 15.4Ω ±0.7 at 20°C, replace the turbocharging solenoid valve.
Check the continuity and absence of interference resistance of the following connections:
Injection computer grey 32-track connector C, track E1 Track 1 turbocharging solenoid valve
UPC connector PPM1 track 1 Track 2 Turbocharging solenoid valve
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.