2009 RENAULT SCENIC sensor

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-83V3 MR-372-J84-13B250$360.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF053
CONTINUED 5
In the event of rail overpressure:
Check the operation of the injectors: refer to test 8 Poor injector operation.
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 reveal any faults, 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 the operation of the injectors: refer to test 8 Poor injector operation.
Carry out the necessary operations.
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.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-87V3 MR-372-J84-13B250$360.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF055
PRESENT
OR
STOREDTURBOCHARGING PRESSURE REGULATION CIRCUIT
1.DEF : Pressure too low
2.DEF : Pressure too high
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:
If the fault is present:
–turbocharging is no longer authorised,
–the EGR function is inhibited,
–the level 1 warning light is lit.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
1.DEF
NOTESNone
Check the turbocharger pressure sensor connections.
Check the connections of the turbocharging pressure relief solenoid valve.
Check the injection computer connections.
Repair if necessary.
Check the sealing of the high pressure air circuit:
–disconnected or pierced pipes,
–pressure sensor disconnected or poorly fitted (seal present),
–intercooler pierced (to check the intercooler: with the vehicle stationary, stabilise the engine speed between
3,500 and 4,000 rpm and check that there are no leaks).
Check the conformity of the turbocharger pressure signal and apply test 9 Air line at the turbocharger, then test
5 Turbocharger control solenoid valve check and test 6 Turbocharger.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF055

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-89V3 MR-372-J84-13B250$360.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF055
CONTINUED 2
2.DEF
NOTESPriority when dealing with a number of faults:
Deal with fault DF004 Turbocharger pressure sensor
circuit first if it is present or stored.
Check the turbocharging pressure sensor connections,
Check the connections of the turbocharging solenoid valve,
Check the injection computer connections.
Repair if necessary.
Check the conformity of the turbocharging pressure signal (refer to the interpretation of parameter PR041
Turbocharging pressure).
Make sure the turbocharging pressure relief solenoid valve is not jammed open:
–With the engine switched off, disconnect the inlet and outlet hoses from the solenoid valve.
–connect a vacuum pump to the inlet union and apply a vacuum pressure.
–if the vacuum pressure is not maintained: replace the solenoid valve.
Check that the turbocharger control rod has not seized:
–with the engine stopped, make sure the turbocharger control rod is in the rest position.
–apply a vacuum pressure of 800 mbar ± 100, to the hose connected to the turbocharger control diaphragm,
–if the diaphragm is affected by the vacuum, check the movement and setting of the turbocharger control rod (see
MR 364 (MEGANE II) and 370 (SCENIC II), Mechanical, 12B, Turbocharging).
If the control rod is seized, replace the turbocharger.
If the fault is still present, apply test 9 Air line at the turbocharger, then test 5 Turbocharger control solenoid
valve check and test 6 Turbocharger.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-90V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Interpretation of faults
DF056
PRESENT
OR
STOREDAIR FLOWMETER CIRCUIT
CC.1 : Short circuit to + 12 V
CO.0 : Open circuit or short circuit to earth
1.DEF : Offset at maximum threshold
2.DEF : Offset at minimum threshold
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after a road test.
Special notes:
If the fault is present:
–the level 1 warning light is lit,
–the OBD warning light will come on after three consecutive driving cycles (starting
+ 5 seconds + switching off the ignition and waiting 1 minute).
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
Priorities when dealing with a number of faults:
Deal with fault DF013 Sensor supply voltage no. 3 first, if it is present or stored.
CC.1
NOTESNone
Check the air flowmeter connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity and the insulation to + 12 V of the following connections:
Injection computer brown 48-track connector B, track E2 Track 2 of the air flow sensor
Injection computer brown 48-track connector B, track L4 Track 6 of the air flow sensor
Injection computer brown 48-track connector B, track G1 Track 5 of the air flow sensor
Injection computer brown 48-track connector B, track B4 Track 3 of the air flow sensor
If the fault is still present, replace the air flowmeter.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF056

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-91V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF056
CONTINUED 1
CO.0
NOTESNone
Check there is a + 5 V supply on track 3 of the air flow sensor.
Repair if necessary.
Check the air flowmeter connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity and insulation to earth between:
Injection computer brown 48-track connector B, track E2 Track 2 of the air flow sensor
Injection computer brown 48-track connector B, track B4 Track 3 of the air flow sensor
Injection computer brown 48-track connector B, track G1 Track 5 of the air flow sensor
UPC black connector Track 2 Track 4 of the air flow sensor
Repair if necessary.
If the fault is still present and remains present, replace the air flowmeter.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-92V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF056
CONTINUED 2
1.DEF
NOTESNone
2.DEFConditions for applying the fault finding procedure to a
stored fault:
The fault is declared present after the ignition has been
switched off for 1 minute.
Check the air flowmeter connections.
Check the injection computer connections.
Repair if necessary
Check the continuity and absence of interference resistance of the following connections:
Injection computer brown 48-track connector B, track B4 Track 3 of the air flow sensor
Injection computer brown 48-track connector B, track G1 Track 5 of the air flow sensor
Injection computer 48-track brown connector B track L4 Track 6 of the air flow sensor
Injection computer, brown 48-track connector B track E2 Track 2 of the air flow sensor
UPC black connector Track 2 Track 4 of the air flow sensor
Repair if necessary.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-93V3 MR-372-J84-13B250$405.mif
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF056
CONTINUED 3
Repair if necessary
If the fault is still present, apply test 3: Checking the turbocharged air inlet circuit and test 4: Air flow sensor,
–check that the damper valve is open (valve control pushing on the body of the air vent unit)
–with the flow sensor connected, the vehicle ignition on and engine stopped:
–check the voltage between tracks 2 and 5 of the air flow sensor:
If the value is not 0.6 V ± 0.1, replace the air flow sensor.
●Check the EGR valve is not jammed open:
–Deal with any faults.
–Use the conformity check and EMISSION CONTROL/OBD sub-function.
If these checks show that the valve is jammed or irrevocably seized, replace the EGR valve.
If no faults are revealed, but the fault is still present, replace the air flowmeter.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-94V3 MR-372-J84-13B250$405.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF057
PRESENT
OR
STOREDWATER IN DIESEL FUEL DETECTOR CIRCUIT
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.
Check the conformity of the fuel used by applying test 10 Diesel fuel conformity check.
Check the sealing of the tank and low pressure circuit by applying test 2 Low pressure circuit check.
A) Make sure the water in diesel fuel detection sensor is properly connected.
–If not, clear the fault,
–Carry out a road test (speed > 12 mph (20 km/h) and engine speed > 1200 rpm) for more than 30 seconds.
–If the fault does not recur, end the fault finding procedure.
–If the fault does recur, go to step C.
B) If the water detection sensor is absent:
–Insulate the electrical connector not connected to the vehicle (risk of dampness, oxidation, and erratic
appearance of faults).
Check that the configuration reading LC065 Water detected in the diesel is NONE.
If LC065 is WITH, run command RZ005 Programming to reinitialise the vehicle configurations.
–Clear the faults.
–Carry out a road test (speed > 12 mph (20 km/h) and engine speed > 1200 rpm) for more than 30 seconds.
–If the fault does not recur, end the fault finding procedure.
C) If the sensor is properly connected:
–Bleed the diesel filter unit (see MR 364, Mechanics, 13A, Fuel supply).
–Clear the fault.
–Carry out a road test (speed > 12 mph (20 km/h) and engine speed > 1200 rpm) for more than 30 seconds.
–If the fault does not recur, end the fault finding procedure.
D) If the fault recurs:
–Check for continuity and the absence of interference resistance on the connection between:
Injection computer 32-track grey connector track A2 Track 3 of the water detection sensor
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF057