sensor RENAULT SCENIC 2010 J95 / 3.G Engine And Pheripherals DCM 1.2 Injection Repair Manual

13B-195
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR148PEDAL POTENTIOMETER GANG 2 VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the pedal potentiometer gang 2 voltage in volts.
Conformity check: Engine stopped, ignition on or engine running.
PR148 ≈ 0.72 V and varies depending on the pedal status.
In the event of a fault, apply the interpretation of DF009 Pedal sensor circuit gang 2.
DCM1.2_V48_PR148/DCM1.2_V4C_PR148/DCM1.2_V50_PR148/DCM1.2_V54_PR148/DCM1.2_V58_PR148/DCM1.2_V5C_PR148

13B-196
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 4C, 50, 54,
58, 5C
PR568PEDAL POSITION (GANG 1)
PARAMETER
DEFINITIONThis parameter indicates the accelerator pedal position gang 1 as a %.
Conformity check: Engine stopped, ignition on or engine running.
PR568 ≈ 16%.
In the event of a fault, apply the interpretation of DF008 Pedal sensor circuit gang 1.
DCM1.2_V4C_PR568/DCM1.2_V50_PR568/DCM1.2_V54_PR568/DCM1.2_V58_PR568/DCM1.2_V5C_PR568

13B-197
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 4C, 50, 54,
58, 5C
PR569PEDAL POSITION GANG
2
PARAMETER
DEFINITIONThis parameter indicates the accelerator pedal position gang 2 as a %.
Conformity check: Engine stopped, ignition on or engine running.
PR569 ≈ 7%.
In the event of a fault, apply the interpretation of DF009 Pedal sensor circuit gang 2.
DCM1.2_V4C_PR569/DCM1.2_V50_PR569/DCM1.2_V54_PR569/DCM1.2_V58_PR569/DCM1.2_V5C_PR569

13B-198
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR730AIR FLOW SENSOR TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the air temperature of the flowmeter in °C.
NOTESSpecial notes:
Depending on the engine type, the air temperature is given by the air flowmeter or the
exterior air temperature sensor.
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80
°C
Check the condition of the air flow sensor connections.
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
If necessary, replace the sensor (see MR 364 (Mégane II), MR 370 (Scénic II), MR 385 (Modus), MR 392 (Clio III),
MR 411 (New Twingo), MR 417 (Kangoo 2), Mechanical, 12A, Fuel mixture, Air flowmeter: Removal -
Refitting).
Measure the resistance between the following connections:
(vehicle with flowmeter)
–3B and 3DW of component 799;
(vehicle without flowmeter)
–3PB and 3KQ of component 272,
–3SH and 3KQ of component 272,
–3JQ and 3KQ of component 272.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
DCM1.2_V48_PR730/DCM1.2_V4C_PR730/DCM1.2_V50_PR730/DCM1.2_V54_PR730/DCM1.2_V58_PR730/DCM1.2_V5C_PR730

13B-199
AFTER REPAIRDeal with any faults displayed by the diagnostic tool. Clear the computer fault
memory.
Carry out a road test followed by another check with the diagnostic tool.
V10 MR-372-J84-13B100$170.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
PR730
CONTINUED
If the resistance of the air flowmeter or the exterior air temperature sensor is not:
(theoretical values for flowmeter K9K 724, 766, 768, 800 and 802)
at -10
°C: 8716 Ω < X < 9688 Ω
at 0
°C: 5497 Ω < X < 6051 Ω
at 10
°C: 3553 Ω < X < 3875 Ω
at 20
°C: 2353 Ω < X < 2543 Ω
at 30
°C: 1613 Ω < X < 1729 Ω
(theoretical values for exterior air temperature sensor K9K 750, 752, 740 and 812)
at -10
°C: 8623 Ω < X < 10454 Ω
at 25
°C: 1928 Ω < X < 2174 Ω
at 50
°C: 763 Ω < X < 857 Ω,
replace the air temperature/pressure sensor or the exterior air temperature sensor, component code 272 (see
MR 364 (Mégane II), MR 370 (Scénic II), MR 385 (Modus), MR 392 (Clio III), MR 411 (New Twingo), MR 417
(Kangoo 2), Mechanical, 12A, Fuel mixture, Air flowmeter: Removal - Refitting).

13B-224V10 MR-372-J84-13B100$190.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
TEST 11
CONTINUED
High pressure circuit check
Note:
Depending on the vehicle type, the best visual access will be either from above
or from below.
Visually inspect the condition of the following components:
–compressor outlet pipe to the turbocharging air cooler (on some engines,
the turbocharging air cooler does not exist),
–outlet pipe of the turbocharging air cooler to the inlet manifold,
–inlet manifold,
–pressure and temperature sensors.
Is one of these components incorrect (pipes dislodged, torn, bent,
pierced or kinked)?Replace the faulty
parts (see MR 364
(Mégane II), 370
(Scénic II), 392
(Clio III), 385
(Modus),
411 (New Twingo) or
417 (Kangoo II),
Mechanical, 12B
Turbocharging).
Exhaust circuit check
Visually inspect the condition of the following engine sections:
–from the exhaust manifold circuit to the turbocharger turbine,
–from the turbine outlet pipe to the end of the exhaust pipe,
–from the inlet manifold to the EGR valve,
–pressure and temperature sensors connected.
Do certain of these components have blackish or whitish traces?
Run test 10 Turbocharger solenoid valve check.
A
YES
NO
YES
NO

13B-233V10 MR-372-J84-13B100$190.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
TEST 14 Accelerator pedal check
Can the accelerator pedal be fully
depressed and does it return fully?Check that there are no obstructions between the floor
and the accelerator pedal, and check that the latter has no
points of resistance.
Vehicle under + after ignition feed.
Measure the voltage between
connections 3LR and 3LT of
component 921.Check the continuity and insulation of connections 3LR
and 3LT between components 921 and 120.
If the connection is faulty and there is a repair method
(see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring,
otherwise replace it. Expected result:
4.75 V < X < 5.25 V
Vehicle under + after ignition feed.
Fully depress the accelerator pedal
and measure the voltage between
connections 3LS and 3LT of
component 921.Check the continuity and insulation of connection 3LS
between components 921 and 120.
If the connection is faulty and there is a repair method
(see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring,
otherwise replace it.
If these checks are correct, replace the accelerator pedal
sensor (see MR 392 (Clio III), MR 364 (Mégane II), MR 370
(Scénic II), MR 417 (Kangoo 2), Mechanical, 37A,
Mechanical component controls, Accelerator pedal:
Removal – Refitting) or (see MR 385 (Modus), MR 411
(New Twingo), Mechanical, 37A, Mechanical
component controls, Accelerator brake pedal
assembly: Removal – Refitting). Expected result:
3.94 < X < 4.56 V
Vehicle under + after ignition feed.
Accelerator pedal in no load position,
measure the voltage between
connections 3LS and 3LT of
component 921.Replace the accelerator pedal sensor (see MR 392
(Clio III), MR 364 (Mégane II), MR 370 (Scénic II), MR 417
(Kangoo 2), Mechanical, 37A, Mechanical component
controls, Accelerator pedal: Removal – Refitting)
or (see MR 385 (Modus), MR 411 (New Twingo),
Mechanical, 37A, Mechanical component controls,
Accelerator brake pedal assembly: Removal –
Refitting). Expected result:
0.66 V < X < 0.84 VNO
YES
NO
YES
NO
YES
NO
YES
A
DCM1.2_V48_TEST14/DCM1.2_V4C_TEST14/DCM1.2_V50_TEST14/DCM1.2_V54_TEST14/DCM1.2_V58_TEST14/DCM1.2_V5C_TEST14

13B-234V10 MR-372-J84-13B100$190.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
TEST 14
CONTINUED
Vehicle under + after ignition feed.
Measure the voltage between
connections 3LU and 3LV of
component 921.Check the continuity and insulation of connections 3LU
and 3LV between components 921 and 120.
If the connection is faulty and there is a repair method
(see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring,
otherwise replace it. Expected result:
4.75 V < X < 5.25 V
Vehicle under + after ignition feed. Fully
depress the accelerator pedal
and measure the voltage between
connections 3LW and 3LV of
component 921.Check the continuity and insulation of connection 3LW
between components 921 and 120.
If the connection is faulty and there is a repair method
(see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring,
otherwise replace it.
If these checks are correct, replace the accelerator pedal
sensor (see MR 392 (Clio III), MR 364 (Mégane II), MR 370
(Scénic II), MR 417 (Kangoo 2), Mechanical, 37A,
Mechanical component controls, Accelerator pedal:
Removal – Refitting) or (see MR 385 (Modus), MR 411
(New Twingo), Mechanical, 37A, Mechanical component
controls, Accelerator brake pedal assembly: Removal –
Refitting). Expected result:
2.16 < X < 2.38 V
Vehicle under + after ignition feed.
Accelerator pedal in no load position,
measure the voltage between
connections 3LW and 3LV of
component 921.Replace the accelerator pedal sensor (see MR 392
(Clio III), MR 364 (Mégane II), MR 370 (Scénic II), MR 417
(Kangoo 2), Mechanical, 37A, Mechanical component
controls, Accelerator pedal: Removal – Refitting) or
(see MR 385 (Modus), MR 411 (New Twingo),
Mechanical, 37A, Mechanical component controls,
Accelerator brake pedal assembly: Removal –
Refitting). Expected result:
0.32 < X < 0.42 V
Contact the Techline
A
NO
YES
NO
YES
NO
YES

13B-238V10 MR-372-J84-13B100$210.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ALP2
CONTINUED 1
Does the starter motor operate correctly
(minimum engine speed = 200 rpm)?Carry out the necessary repairs
Is the compression in order? Carry out the necessary repairs
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen.
If not, configure the correct injector codes using command SC002 Enter injector codes.

Is PR038 Rail pressure less than 50 bar under
+ after ignition feed?Apply the fault finding procedure for DF007 Rail
pressure sensor circuit.
Check the low pressure circuit: run TEST 1 Low pressure circuit check.
Check the injectors: run TEST 3 Injector check.
A
NO
YES
NO
YES
YES
NO
B

13B-259V10 MR-372-J84-13B100$210.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ALP13 Excessive consumption
NOTESOnly consult this customer complaint after a full check with the diagnostic tool.
Check that the fuel tank is correctly filled and that the fuel is correct: run TEST 13 Diesel fuel conformity check.
Check the levels of engine oil and coolant.
Is the fuel temperature sensor leaking? Replace the fuel temperature
sensor, (see MR 364 (Mégane II),
MR 370 (Scénic II), MR 385
(Modus), MR 392 (Clio III), MR 411
(New Twingo), MR 417 (Kangoo 2),
Mechanical, 13B, Diesel injection,
Rail pressure sensor: Removal -
Refitting).
Check the low pressure circuit: run TEST 1 Low pressure circuit check.
Visually check that there are no leaks on the high pressure circuit: run TEST 7 High pressure circuit
sealing check.
Check the air inlet circuit: run TEST 5 Air inlet circuit check.
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes.
YES
NO
A
DCM1.2_V48_ALP13/DCM1.2_V4C_ALP13/DCM1.2_V50_ALP13/DCM1.2_V54_ALP13/DCM1.2_V58_ALP13/DCM1.2_V5C_ALP13