2011 RENAULT SCENIC sensor

13B-43
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$282.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF013
PRESENT
OR
STOREDSENSOR SUPPLY VOLTAGE No. 3
1.DEF : sensor reference voltage too weak
2.DEF : sensor reference voltage too high
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 several times.
Special notes:
If the fault is present:
– the EGR function is inhibited,
– the engine speed is limited,
–the level 2 warning light is lit.
Use bornier Ele. 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.
The sensors connected to supply no. 3 are:
–Rail Pressure Sensor
–Air flow sensor..
To locate a faulty sensor and/or connection, disconnect one of these sensors then check whether the fault
becomes stored.
If the fault is still present, start the operation again with the other sensor.
(wait a few seconds between each disconnection to allow the computer to perform the measurement).
If the fault is stored after a disconnection, replace the faulty sensor or repair its connection.
Clear the faults created by the multiple disconnections.
If the fault is still present when both these sensors have been disconnected:
1. Check the insulation from earth of the following connections:
Injection computer brown 48-track connector B, track G3 Track 2 of the rail pressure sensor
Injection computer brown 48-track connector B, track A4 Track 3 of the rail pressure sensor
Injection computer brown 48-track connector B, track G1 Track 5 of the air flowmeter
Injection computer brown 48-track connector B, track B4 Track 3 of the air flowmeter
Injection computer brown 48-track connector B, track E2 Track 2 of the air flowmeter
Repair if necessary.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF013/EDC16_V48_DF013/EDC16_V4C_DF013

13B-44
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$282.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF013
CONTINUED
2. Check the insulation from + 12 V of the following connections:
Injection computer brown 48-track connector B track G3 Track 2 of the rail pressure sensor
Injection computer brown 48-track connector B, track A4 Track 3 of the rail pressure sensor
Injection computer brown 48-track connector B, track C4 Track 1 rail pressure sensor
Injection computer brown 48-track connector B, track G1 Track 5 of the air flowmeter
Injection computer brown 48-track connector B, track B4 Track 3 of the air flowmeter
Injection computer brown 48-track connector B, track E2 Track 2 of the air flowmeter
Injection computer brown 48-track connector B, track L4 Track 6 of the air flowmeter
Repair if necessary.
3. Check the insulation between the following connections after disconnecting the sensors:
–tracks1 and 3 of the rail pressure sensor,
–tracks2 and3 of the air flow sensor connector.
If these checks do not produce the correct results, replace the faulty sensor(s).
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.

13B-52
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$282.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF039
PRESENT
OR
STOREDINLET AIR TEMPERATURE SENSOR CIRCUIT
CO.1 : open circuit or short circuit to + 12 V
CC.0 : short circuit to earth
1.DEF : below minimum threshold
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after an attempted start, or with the engine running
following a road test.
Special notes:
If the fault is present:
– The air temperature value enters defect mode, i.e. PR059 Intake air
temperature = 20°C.
– The EGR function is inhibited.
Use bornier Ele. 1681 for all operations on the injection computer connectors.
CO.1
NOTESNone.
Check the air flowmeter connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity of the following connection:
Air flowmeter black 6-track connector track 4 Track 2 UPC black connector
Repair if necessary.
Check the continuity and insulation against + 12 V of the following connections:
Injection computer brown 48-track connector B, track G2 Track 1 air flowmeter connector
Injection computer brown 48-track connector B, track E2 Track 2 air flowmeter connector
Repair if necessary.
Measure the air temperature sensor resistance between tracks 1 and 2 of the air flow sensor.
Replace the air flowmeter if the resistance is not: 3714Ω ±161 at + 10°C
2488 Ω ± 90 at 20°C
1671 Ω ± 59 at 30°C
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF039/EDC16_V48_DF039/EDC16_V4C_DF039

13B-53
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$282.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF039
CONTINUED 1
CC.0
NOTESNone.
Check the air flowmeter connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity and insulation against earth of the following connections:
Injection computer brown 48-track connector B, track G2 Track 1 air flowmeter
Air flowmeter black 6-track connector track 4 Track 2 UPC black connector
Injection computer brown 48-track connector B, track B4 Track 3 air flowmeter
Repair if necessary.
Measure the resistance of the air temperature sensor integrated into the flowmeter across tracks 1 and 2.
Replace the air flowmeter if the resistance is not: 3714Ω ±161 at + 10°C
2488 Ω ± 90 at 20°C
1671 Ω ± 59 at 30°C
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.

13B-54
DIESEL INJECTION
Fault finding - Interpretation of faults13B
V10 MR-372-J84-13B150$282.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
DF039
CONTINUED 2
1.DEF
NOTESNone.
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 E2 Track 2 air flowmeter
Injection computer brown 48-track connector B, track G2 Track 1 air flowmeter
Repair if necessary.
Measure the resistance of the air temperature sensor integrated into the flow sensor between tracks 1 and 2.
Replace the air flowmeter if the resistance is not: 3714Ω ±161 at + 10°C
2488 Ω ± 90 at 20°C
1671 Ω ± 59 at 30°C
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.

13B-61
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
DF049
PRESENT
OR
STOREDREFRIGERANT SENSOR CIRCUIT
CC.1 : short circuit to + 12 V
CO.0 : open circuit or short circuit to earth
NOTESPriorities when dealing with a number of faults:
Deal with fault DF012 Sensor feed voltage no. 2 first if it is present or stored.
Conditions for applying the fault finding procedure to a stored fault:
The fault is declared present following a road test, or if the air conditioning is
switched on.
Special notes:
If the fault is present, air conditioning is not authorised.
Use bornier Elé. 1681 for all operations on the injection computer connectors.
CC.1
NOTESNone.
Check the refrigerant pressure sensor connectors.
Check the injection computer connections.
Repair if necessary.
Connect an air conditioning filling station (equipped with a high pressure gauge) to the vehicle.
Display parameter PR037 Refrigerant pressure and compare the value displayed by the filling station.
If the values match, carry out a fault finding procedure as described in the fault finding note for that vehicle.
If the values do not match, check the continuity and insulation against + 12 V of the following connections:
Injection computer, brown 48-track connector B, track F1 Track C refrigerant sensor
connector
Injection computer, brown 48-track connector B, track F3 Track B refrigerant sensor
connector
Injection computer grey 32-track connector C, track C3 Track A refrigerant sensor
connector
Repair if necessary.
If the fault is still present, replace the refrigerant pressure sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF049/EDC16_V48_DF049/EDC16_V4C_DF049

13B-62
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
DF049
CONTINUED
CO.0
NOTESNone.
Check the refrigerant pressure sensor connectors.
Check the injection computer connections.
Repair if necessary.
Connect an air conditioning filling station (equipped with a high pressure gauge) to the vehicle.
Display parameter PR037 Refrigerant pressure and compare the value displayed by the filling station.
If the values match, carry out a fault finding procedure as described in the fault finding note for that vehicle.
If the values do not match, check the continuity and insulation against earth of the following connections:
Injection computer, brown 48-track connector B, track F1 Track C refrigerant sensor
connector
Injection computer, brown 48-track connector B, track F3 Track B refrigerant sensor
connector
Injection computer grey 48-track connector C, track C3 Track A refrigerant sensor
connector
Repair if necessary.
If the fault is still present, replace the refrigerant pressure sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a 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.