wiring RENAULT SCENIC 2010 J95 / 3.G Engine And Pheripherals DCM 1.2 Injection Workshop Manual

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-237V10 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 The engine will not start
NOTESOnly consult this customer complaint after a complete 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.
Check the air inlet circuit: run TEST 5 Air inlet circuit check.

Is the catalytic converter clogged or damaged?Replace the catalytic converter (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, 19B, Exhaust, Catalytic
converter: Removal - Refitting).
Check the electrical circuit: run TEST 2 Electrical circuit check.
Check the electrical conformity of the heater plugs (the resistance value of the heater plug must be less
than 2 Ω).

Is the timing set correctly? Carry out the necessary repairs.
Visually check the condition of the engine wiring harness.
YES
NO
NO
YES
A
DCM1.2_V48_ALP2/DCM1.2_V4C_ALP2/DCM1.2_V50_ALP2/DCM1.2_V54_ALP2/DCM1.2_V58_ALP2/DCM1.2_V5C_ALP2

13B-239V10 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 2
Visually check that there are no leaks on the high pressure circuit: run TEST 7 High pressure circuit sealing
check.
Check the high pressure system: run TEST 6 High pressure system check.
Check the computer:
Check that the computer connectors are properly locked.
Check the condition of the computer connections (bent pin, signs of corrosion, silicone, etc.).
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Contact the Techline if the customer complaint is still present.
B

13B-240V10 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
ALP3 The engine starts with difficulty, or starts then stalls
NOTESOnly consult this customer complaint after a complete 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.
Check the air inlet circuit: run test 5 Air inlet circuit check.
Is the catalytic converter clogged or damaged?Replace the catalytic converter (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, 19B, Exhaust, Catalytic
converter: Removal - Refitting).
Check the electrical conformity of the heater plugs (the resistance value of the heater plug must be less
than 2 Ω).
Is the timing set correctly? Carry out the necessary repairs.
Is the compression in order? Carry out the necessary repairs.
Visually check the condition of the engine wiring harness.
YES
NO
NO
YES
NO
YES
A
DCM1.2_V48_ALP3/DCM1.2_V4C_ALP3/DCM1.2_V50_ALP3/DCM1.2_V54_ALP3/DCM1.2_V58_ALP3/DCM1.2_V5C_ALP3

13B-241V10 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
ALP3
CONTINUED
Check the electrical circuit: run TEST 2 Electrical 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.
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 high pressure system: run TEST 6 High pressure system check.
Check the computer:
Check that the computer connectors are properly locked.
Check the condition of the computer connections (bent pin, signs of corrosion, silicone, etc.).
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Contact the Techline if the customer complaint is still present.
A

13B-242V10 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
ALP4 Starting difficult with warm engine
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 air inlet circuit: run TEST 5 Air inlet circuit check.
Is the compression in order? Carry out the necessary repairs.
Is the timing set correctly? 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.
Visually check the condition of the engine wiring harness.
Check the low pressure circuit: run TEST 1 Low pressure circuit check.
NO
YES
NO
YES
A
DCM1.2_V48_ALP4/DCM1.2_V4C_ALP4/DCM1.2_V50_ALP4/DCM1.2_V54_ALP4/DCM1.2_V58_ALP4/DCM1.2_V5C_ALP4

13B-243V10 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
ALP4
CONTINUED
Control the injectors using the commands:
–AC005 Cylinder 1 injector,
–AC006 Cylinder 2 injector,
–AC007 Cylinder 3 injector,
–AC008 Cylinder 4 injector.
Can you hear the valve moving when you are 1 metre
from the vehicle?Run Test 9 Diesel filter check.
If test 9 is correct, replace only the faulty
injector(s) (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, Diesel injector: Removal -
Refitting).
Check the high pressure system: run TEST 6 High pressure system check.
Check the computer:
Check that the computer connectors are properly locked.
Check the condition of the computer connections (bent pin, signs of corrosion, silicone, etc.).
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Contact the Techline if the customer complaint is still present.
A
NO
YES

13B-244V10 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
ALP5 Rough idle (pumping)
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 low pressure circuit: run TEST 1 Low pressure 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.
Visually check the condition of the engine wiring harness.
Visually check that there are no leaks on the high pressure circuit: run TEST 7 High pressure circuit sealing
check.
Is the compression in order? Carry out the necessary repairs.
Check the electrical conformity of the heater plugs (the resistance value of the heater plug must be less
than 2 Ω).
Contact the Techline if the customer complaint is still present.
NO
YES
DCM1.2_V48_ALP5/DCM1.2_V4C_ALP5/DCM1.2_V50_ALP5/DCM1.2_V54_ALP5/DCM1.2_V58_ALP5/DCM1.2_V5C_ALP5

13B-245V10 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
ALP6 Idling speed too high or too low
NOTESOnly consult this customer complaint after a full check with the diagnostic tool.
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.
Check the electrical circuit: run TEST 2 Electrical circuit check.
Is the clutch clearance set correctly? Carry out the necessary repairs
Check the computer:
Check that the computer connectors are properly locked.
Check the condition of the computer connections (bent pin, signs of corrosion, silicone, etc.).
If the connector(s) is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Contact the Techline if the customer complaint is still present.
NO
YES
DCM1.2_V48_ALP6/DCM1.2_V4C_ALP6/DCM1.2_V50_ALP6/DCM1.2_V54_ALP6/DCM1.2_V58_ALP6/DCM1.2_V5C_ALP6