2011 RENAULT SCENIC torque

13B-16
MR-372-J84-13B050$195.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Function13B
Step by step flow regulation
The aim of this regulation process is to facilitate smooth engine operation by compensating for system variations
(injectors, compression value, etc.) which affect the torque generated by each cylinder during combustion.
The regulation process is only active at idle speed, with a warm engine and provided the engine speed is sufficiently
stable.
Each cylinder has an injection time correction coefficient which sets the injection time when the regulation process is
active, otherwise the correction coefficient remains at its last set value.
On each new cycle, the coefficients are set to 1.

13B-17
MR-372-J84-13B050$195.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Function13B
AIR SUPPLY
Measurement of the fresh air flow
The flow of fresh air entering the engine is measured by a flow sensor (ratiometric hot-wire sensor).
A fresh air temperature sensor is integrated into the air flowmeter.
EGR valve control
The EGR (exhaust gas recirculation) system consists of a direct current EGR valve fitted with a valve position
sensor. The EGR valve is controlled in a closed-loop via the position sensor. Up to a certain rate, exhaust gas
recirculation enables nitrogen oxide (NOx) emissions to be reduced significantly.
Turbocharger control
The turbocharger system consists of a solenoid valve connected to the vacuum pump circuit, which controls the
vanes via a diaphragm to create an overpressure or a vacuum in the fresh air inlet circuit (the overpressure can
reach 2.6 bar).
Damper valve control (for Vdiag 44, 45, 48, 49 and 4D only)
By default the valve is open when in the rest position and is actuated only when the engine is switched off; this has
a damping effect and helps to stop the engine.
It also controls the flow of fresh air during regeneration.
IDLE SPEED MANAGEMENT
The injection computer regulates the idle speed according to the idle speed setpoint which it calculates.
The idle speed setpoint is dependent on:
– the coolant temperature,
– the emission control programs,
– air conditioning requirements,
– the gear ratio engaged (automatic or sequential gearbox),
– the electrical consumers,
– battery voltage.
ENGINE TORQUE MANAGEMENT
The torque structure is the system which translates the driver's request into a torque supplied by the engine. Certain
functions such as the electronic stability program (ESP), the automatic gearbox (BVA) or the sequential gearbox
(BVR), if fitted to the vehicle, use this information.
Each inter-system (ESP, automatic gearbox, sequential gearbox) sends the injection computer a torque request via
the multiplex network.
The injection computer arbitrates between the inter-system torque requests and the driver request (depressing the
accelerator pedal or setting the cruise control/speed limiter function). The result of the arbitration gives the torque
setpoint.
From this torque set point, the computer determines the quantity of fuel to be injected (injection duration and number
of injection processes) and the amount of air required (turbocharging pressure and EGR valve rate) so that the
engine is able to provide the torque required in the best possible conditions (in terms of smooth running
performance, pollutant emissions, etc.).

13B-38
MR-372-J84-13B050$390.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of faults
Siemens Injection
SID301 and 304
Vdiag No. 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
DF004
CONTINUED
2. DEF
3. DEF
NOTESPriority when dealing with a number of faults:
First deal with fault DF003 Atmospheric pressure sensor
circuit.
Conditions for application to a stored fault:
The fault is declared present after the ignition has been
switched on for 1 second, with a warm engine and when
the vehicle is stationary.
If the fault is present:
– the EGR function is inhibited,
– the turbocharging pressure value is in safe mode, PR041
Turbocharging pressure sensor = 1000 mbar,
– turbocharging is cut off.
– the maximum torque supplied by the engine is restricted.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and
KANGOO II Wiring diagrams Technical Note.
Check the connection and condition of the turbocharging pressure sensor connector, component code1071
and the injection computer, component code120 (see MR 392, 385, 364, 370 and 417, Mechanical, 13B,
Diesel injection, Diesel injection computer: Removal - Refitting).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the connector(s); otherwise, replace the wiring.
With the ignition on, check for the presence of + 5 V on connection 3LQ and check for an earth on connection
3LN on the turbocharging pressure sensor, component code 1071.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–3LQ between components 1071 and 120,
–3LP between components 1071 and 120,
–3LN between components 1071 and 120.
If the connection(s) are faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the connections are correct, replace the turbocharging pressure sensor
If the fault is still present, contact the Techline.
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.

13B-40
MR-372-J84-13B050$390.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of faults
Siemens Injection
SID301 and 304
Vdiag No. 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
DF007
PRESENT
OR
STORED
RAIL PRESSURE SENSOR CIRCUIT
CC.0 : Short circuit to earth
CO.1 : Open circuit or short circuit to +12 V.
1. DEF: Faulty sensor
2. DEF: Signal outside upper limit
3. DEF: Micro-breaks
NOTESPriority when dealing with a number of faults:
Apply the procedure for dealing with fault DF011 Sensor voltage supply no. 1 first.
Conditions for applying the fault finding procedure to stored faults:
– CO.1 or CC.0: the fault is declared present after the ignition is switched on.
– 1.DEF, 2. DEF or 3.DEF: the fault is declared present after running the command
AC029 High pressure circuit sealing test.
If the fault is present:
Level 1 warning light activated.
Restriction of torque setpoint and engine speed loss of performance.
Use the Wiring Diagram Technical Notes for CLIO III, MODUS, MEGANE II ph2
and SCENIC II ph2 and KANGOO II.
Check the connection and condition of the rail pressure sensor connector, component code1032 (see MR 392,
385, 364, 370 and 417, Mechanical, 13B, Diesel injection, Rail pressure sensor: Removal - Refitting) and
the injection computer connector, component code120 (see MR 392, 385, 364, 370 and 417, Mechanical,
13B, Diesel injection, Diesel injection computer: Removal - Refitting).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the connector(s); otherwise, replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–3LX between components 1032 and 120,
–3LY between components 1032 and 120,
–3LZ between components 1032 and 120.
If the connection(s) are 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 correct, disconnect the sensor and start the engine.
If the engine starts, replace the rail (see MR 392, 385, 364, 370 and 417, Mechanical, 13B, Diesel injection,
Injector rail: Removal - Refitting) and its sensor (see MR 392, 385, 364, 370 and 417, Mechanical, 13B,
Diesel injection, Rail pressure sensor: Removal - Refitting) and the high pressure pipes (see MR 392, 385,
364, 370 and 417, Mechanical, 13B, Diesel injection, High pressure pipe: Check).
Apply test 7 Incorrect injection quantity
.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Run command AC029 High pressure circuit sealing test again followed by a check
using the diagnostic tool.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_DF007 / SID304_V45_DF007 / SID301_V48_DF007 / SID304_V49_DF007 / SID304_V4D_DF007 / SID301_V4C_DF007

13B-53
MR-372-J84-13B050$390.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of faults
Siemens Injection
SID301 and 304
Vdiag No. 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
DF026
PRESENT
OR
STOREDCYLINDER 1 INJECTOR CONTROL CIRCUIT
CC : Short circuit
CO : Open circuit
1. DEF: Line in open circuit
2. DEF: Open circuit or internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after a road test.
If the fault is present:
– Engine speed and torque are restricted.
–The level 1 warning light is lit.
–The OBD warning light is illuminated.
– Loss of performance, operation on minimum of 2 cylinders.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
diagrams Technical Note.
Check the connection and condition of the connector for injector no. 1, component code193 (see MR 392, 385,
364, 370 and 417, Mechanical, 13B, Diesel injection, Diesel fuel injector: Removal - Refitting) and the
injection computer connector, component code120 (see MR 392, 385, 364, 370 and 417, Mechanical, 13B,
Diesel injection, Diesel injection computer: Removal - Refitting).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the connector(s); otherwise, replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–3KW between components 193 and 120,
–3CR between components 193 and 120.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Measure at ambient temperature (approx. 20°C), allow the engine to cool down for at least 30 minutes.
Measure the resistance between connections 3KW and 3CR for injector 1, component code 193.
If the resistance is not between 150 kΩ and 250 kΩ, replace injector 1 (see MR 392, 385, 364, 370 and 417,
Mechanical, 13B, Diesel injection, Diesel injector: Removal - Refitting).
Apply test 7 Incorrect injection quantity.
If the fault is still present, contact the Techline.
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.
SID301_V44_DF026 / SID304_V45_DF026 / SID301_V48_DF026 / SID304_V49_DF026 / SID304_V4D_DF026 / SID301_V4C_DF026

13B-54
MR-372-J84-13B050$390.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of faults
Siemens Injection
SID301 and 304
Vdiag No. 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
DF027
PRESENT
OR
STOREDCYLINDER 2 INJECTOR CONTROL CIRCUIT
CC : Short circuit.
CO : Open circuit.
1. DEF: Line in open circuit.
2. DEF: Open circuit or internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after a road test.
If the fault is present:
– Engine speed and torque are restricted,
–The level 1 warning light will be lit,
–The OBD warning light is lit,
– Loss of performance, operation on minimum of 2 cylinders.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
diagrams Technical Note.
Check the connection and condition of the connector for injector no. 2, component code194 (see MR 392, 385,
364, 370 and 417, Mechanical, 13B, Diesel injection, Diesel injector: Removal - Refitting) and the injection
computer connector, component code120 (see MR 392, 385, 364, 370 and 417, Mechanical, 13B, Diesel
injection, Diesel injection computer: Removal - Refitting).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the connector(s); otherwise, replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–3KX between components 194 and 120,
–3CS between components 194 and 120.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Measure at ambient temperature (approx. 20°C), allow the engine to cool down for at least 30 minutes.
Measure the resistance between connections3KX and 3CS for injector 2, component code194.
If the resistance is not between 150 kΩ and 250 kΩ, replace injector 2 (see MR 392, 385, 364, 370 and 417,
Mechanical, 13B, Diesel injection, Diesel injector: Removal - Refitting).
Apply test 7 Incorrect injection quantity.
If the fault is still present, contact the Techline.
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.
SID301_V44_DF027 / SID304_V45_DF027 / SID301_V48_DF027 / SID304_V49_DF027 / SID304_V4D_DF027 / SID301_V4C_DF027

13B-55
MR-372-J84-13B050$390.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of faults
Siemens Injection
SID301 and 304
Vdiag No. 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
DF028
PRESENT
OR
STOREDCYLINDER 3 INJECTOR CONTROL CIRCUIT
CC : Short circuit
CO : Open circuit
1. DEF: Line in open circuit
2. DEF: Open circuit or internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is present with the engine idling.
If the fault is present:
– Engine speed and torque are restricted,
–The level 1 warning light will be lit,
–The OBD warning light is lit,
– Loss of performance, operation on minimum of 2 cylinders.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
diagrams Technical Note.
Check the connection and condition of the connector for injector no. 3, component code195 (see MR 392, 385,
364, 370 and 417, Mechanical, 13B, Diesel injection, Diesel injector: Removal - Refitting) and the injection
computer connector, component code120 (see MR 392, 385, 364, 370 and 417, Mechanical, 13B, Diesel
injection, Diesel injection computer: Removal - Refitting).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the connector(s); otherwise, replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–3KY between components 195 and 120,
–3CT between components 195 and 120.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Measure at ambient temperature (approx. 20°C), allow the engine to cool down for at least 30 minutes.
Measure the resistance between connections3KY and 3CT for injector 3, component code195.
If the resistance is not between 150 kΩ and 250 kΩ, replace injector 3 (see MR 392, 385, 364, 370 and 417,
Mechanical, 13B, Diesel injection, Diesel injector: Removal - Refitting).
Apply test 7 Incorrect injection quantity.
If the fault is still present, contact the Techline.
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.
SID301_V44_DF028 / SID304_V45_DF028 / SID301_V48_DF028 / SID304_V49_DF028 / SID304_V4D_DF028 / SID301_V4C_DF028

13B-56
MR-372-J84-13B050$390.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of faults
Siemens Injection
SID301 and 304
Vdiag No. 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
DF029
PRESENT
OR
STOREDINJECTOR CYLINDER 4 CONTROL CIRCUIT
CC : Short circuit
CO : Open circuit
1. DEF: Line in open circuit
2. DEF: Open circuit or internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after a road test.
If the fault is present:
– Engine speed and torque are restricted,
–The level 1 warning light will be lit,
–The OBD warning light is lit,
– Loss of performance, operation on minimum of 2 cylinders.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
diagrams Technical Note.
Check the connection and condition of the connector for injector no. 4, component code196 (see MR 392, 385,
364, 370 and 417, Mechanical, 13B, Diesel injection, Diesel injector: Removal - Refitting) and the injection
computer connector, component code120 (see MR 392, 385, 364, 370 and 417, Mechanical, 13B, Diesel
injection, Diesel injection computer: Removal - Refitting).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the connector(s); otherwise, replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–3KZ between components 196 and 120,
–3CU between components 196 and 120.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Measure at ambient temperature (approx. 20°C), allow the engine to cool down for at least 30 minutes.
Measure the resistance between connections3KZ and 3CU for injector 4, component code196.
If the resistance is not between 150 kΩ and 250 kΩ, replace injector 4 (see MR 392, 385, 364, 370 and 417,
Mechanical, 13B, Diesel injection, Diesel injector: Removal - Refitting).
Apply test 7 Incorrect injection quantity.
If the fault is still present, contact the Techline.
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.
SID301_V44_DF029 / SID304_V45_DF029 / SID301_V48_DF029 / SID304_V49_DF029 / SID304_V4D_DF029 / SID301_V4C_DF029