2011 RENAULT SCENIC cruise control

13B - 10
DIESEL INJECTION
Fault finding - System operation13B
V10 MR-372-J84-13B150$094.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
a) The computer
– Determines the value of injection pressure necessary for the engine to operate correctly and then controls the
pressure regulator.
– It checks that the pressure value is correct by analysing the value transmitted by the pressure sensor located on
the rail.
– It determines the injection timing required to deliver the right quantity of diesel fuel and the moment when injection
should start.
– Controls each injector electrically and individually after determining these two values.
The flow injected into the engine is determined by:
– the duration of injector control,
– the rail pressure (regulated by the computer),
– the injector opening and closing speed,
– the needle stroke (determined by a constant for the type of injector),
– the nominal hydraulic flow of the injector (specific to each injector).
The computer manages:
– idling regulation,
– exhaust gas flow reinjection to the inlet,
– fuel supply check (advance, flow and rail pressure),
– the fan assembly via the Protection and Switching Unit (centralised coolant temperature management
function),
– the air conditioning (cold loop function),
– the cruise control/speed limiter function,
– the pre-postheating control.
– the fault warning lights via the multiplex network.
The high pressure pump is supplied at low pressure by an integrated low-pressure pump (transfer pump).
It supplies the rail, the pressure of which is controlled by the fuel flow actuator for charging, and for discharging by
the injector valves. This compensates for pressure drops.
The fuel flow actuator enables the high pressure pump to supply the exact quantity of diesel fuel required to maintain
the rail pressure. This component minimises the heat generated and improves engine output.
In order to discharge the rail using the injector valves, the valves are controlled by brief electrical pulses which are:
– short enough not to open the injector (passing through the feedback circuit from the injectors),
– long enough to open the valves and discharge the rail.

13B - 13
DIESEL INJECTION
Fault finding - System operation13B
V10 MR-372-J84-13B150$094.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
Passenger Compartment Heating Resistor Management
In order to reduce the time required to heat up the passenger compartment, the vehicle is fitted with Passenger
Compartment Heating resistors (RCH). These passenger compartment heating resistors are run and controlled by
the UCH.
The injection computer authorises or prohibits the operation of the passenger compartment heating resistors
according to the operating phases and engine power needs.
Cruise control/speed limiter management
When activated, the cruise control function maintains the vehicle at a preselected speed, regardless of the driving
conditions encountered.
If the driver wishes to exceed the cruising speed, they may:
– depress the accelerator pedal and exceed the cruising speed (the vehicle will return to the initial
cruising speed once the driver takes their foot off the pedal),
– press the system control buttons.
The cruise control function can be deselected either by:
– the system control buttons,
– deactivating the cruise control switch,
– when system events are detected, such as the brake pedal or clutch being depressed,
– when system errors are detected such as an inconsistent vehicle speed.
The cruise function can also be temporarily disabled when the driver wants to increase speed by depressing the
accelerator pedal. The cruising speed is resumed when the driver releases the accelerator pedal.
It is possible to reactivate the vehicle speed control and resume the last cruising speed after deactivation (computer
supply not cut off).
The vehicle speed limiter function enables, when it is active (switch turned on), the vehicle speed to be limited to
a preselected value. The driver controls the vehicle in the normal way using the accelerator pedal until the limit
speed is reached.
If the driver wishes to exceed the cruising speed, they may:
– exceed the accelerator pedal's kickdown point,
– increase the limit speed by pressing or pressing and holding the limit speed switch.
The speed limiter function can be deselected either:
– by using the system control buttons,
– by switching off the speed limiter switch,
– when system events are detected, such as the brake pedal or clutch being depressed,
– when system errors are detected such as an inconsistent vehicle speed.

13B - 17
DIESEL INJECTION
Fault finding - Allocation of computer tracks13B
V10 MR-372-J84-13B150$141.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4CDIESEL INJECTION
Fault finding - Allocation of computer tracks
1 - Black connector A, 32-track 1 - Black connector A, 32-track (continued)
Track Description
A1 Not used
A2 Cruise control switch earth
A3 CAN L network signal
A4 CAN H network signal
B1 Not used
B2 Not used
B3 Not used
B4 K line diagnostic socket output
C1 Not used
C2 Not used
C3 Cruise control switch supply
C4 Clutch supply signal output
D1 Protection and Switching Unit supply
D2 Cruise control programming control
D3 Cruise control programming feedback
signal
D4 Not used
E1 Not used
E2 Not used
E3 Not used
E4 Brake switch supply signal output
F1 Not used
F2 Accelerator potentiometer load 2 supply
F3 Accelerator potentiometer load 2 signal
F4 Accelerator potentiometer load 2 earth
Track Description
G1 UPC supply
G2 Accelerator potentiometer load 1 supply
G3 Not used
G4 Battery earth
H1 Battery earth
H2 Accelerator potentiometer load 1 signal
H3 Accelerator potentiometer load 1 earth
H4 Battery earth
MR-372-J84-13B150$141.mif

13B - 20
DIESEL INJECTION
Fault finding - Replacement of components13B
V10 MR-372-J84-13B150$188.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Replacement of components
COMPUTER REPLACEMENT OR REPROGRAMMING OPERATIONS
The system can be programmed or reprogrammed via the diagnostic socket using the RENAULT CLIP diagnostic
tool (see Technical Note 3585A).
While the computer is being reprogrammed the engine fan assemblies are automatically triggered).
Operations to be carried out before reprogramming the injection computer:
Before reprogramming the injection computer, move the main Cruise control/Speed limiter switch to the rest position.
The information about the cruise control or the speed limiter displayed on the instrument panel disappears.
Otherwise, if the main switch remains in the cruise control or speed limiter position during and after reprogramming,
the Cruise control/Speed limiter function will not be operational.
To reset the function, proceed as follows:
Vehicle ignition on.
– Position the main switch in rest position (the computer then detects the rest position).
– Position the switch in Cruise control position to activate the Cruise control function.
– Position the switch in Speed limiter position to activate the Speed Limiter function.
Before reprogramming or replacing the computer in After-Sales operations, backup the following data to the
diagnostic tool:
– The IMA codes (individual correction of the injector).
– The engine adaptives (engine speed, and options available on the vehicle).
(this file corresponds to the last save carried out on the tool)
select YES,
When the backup is complete, replace the computer or reprogram, then proceed to the next step,
with command SC003 Backup computer data. IMPORTANT
–Switch on the diagnostic tool (mains or cigarette lighter feed).
–Connect a battery charger.
–Switch off all electrical consumers (lights, interior lights, air conditioning, radio/CD, etc.).
–Wait for the engine to cool (engine coolant temperature below 60 °C and air temperature below 50 °C).
WARNING
A computer without the IMA option can be replaced by a computer with this option. The codes have
therefore not been backed up during command SC003.
In this case, status ET104 "Injector code use" becomes "YES" or "FAULTY", fault DF276 "Injector code
programming" is present, and the engine operates in defect mode.
In this case, run command SC002 Enter injector codes, applying the procedure described in the
interpretation of this command.
MR-372-J84-13B150$188.mif

13B - 24
DIESEL INJECTION
Fault finding - Fault summary table13B
V10 MR-372-J84-13B150$235.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
Tool
faultAssociated
DTCDiagnostic tool titleLevel 1
fault warning
light (Orange
heater plugs
“on” indicator
light)Level 2 fault
warning light
(Red overheating
warning light)No fault
warning
light litOBD
warning
light lit
DF040 201Cylinder 1 injector circuit CO CC.1 / CC / 1.DEF ... CO
DF041 202Cylinder 2 injector circuit CO CC.1 / CC / 1.DEF ... CO
DF042 203Cylinder 3 injector circuit CO CC.1 / CC / 1.DEF ... CO
DF043 204Cylinder 4 injector circuit CO CC.1 / CC / 1.DEF ... CO
DF046 560Battery voltage ... ... 1.DEF/2.DEF ...
DF047 615Computer feed voltage ... ... X ...
DF049 530Refrigerant sensor circuit ... ... CC.1/CO.0 ...
DF050 571Brake switch circuit ... ... 1.DEF/2.DEF ...
DF051 575Cruise control/speed limiter
function... ... 1.DEF /
2.DEF /
3.DEF...
DF053 89Rail pressure regulation function 3.DEF / 8.DEF CC.0 / CC.1 / CO /
1.DEF / 2.DEF /
5.DEF / 6.DEF / 7.DEF4.DEF ...
DF054 33Turbocharging solenoid valve
control circuitCO/CC.0/CC.1/
1.DEF... ... ...
DF055 243Turbocharging pressure
regulation circuit1.DEF/2.DEF ... ... ...
DF056 100Air flow sensor circuit 3.DEF/4.DEF ... CC.0/CC.1/
1.DEF/2.DEF
DF057 2264Water in diesel fuel detector
circuit... ... X ...
DF067 638Damper control circuit ...
CC.0OC / CC.1 /
1.DEF...
DF069 1620Impact detected signal X
DF070 830Clutch switch circuit ... ... 1.DEF/2.DEF ...

13B-34
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
DF008
PRESENT
OR
STOREDPEDAL POTENTIOMETER CIRCUIT GANG 1
CO.0 : open circuit or short circuit to earth
CC.1 : short circuit to + 12 V
1.DEF : signal incoherence
2.DEF : accelerator pedal sensor locked
NOTESPriorities when dealing with a number of faults:
Deal with fault DF011 Sensor feed voltage no. 1 first if it is present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after a series of full-load/no-load actions on the
accelerator pedal.
Special notes:
Turbocharging and cruise control are not authorised.
The level 1 warning light comes on.
The engine speed is stuck at 1400 rpm if there is fault on gangs 1 and 2 of the pedal
potentiometer.
Use bornier Elé. 1681 for any work on the computer connectors.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in Wiring check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
CO.0
NOTESPriorities when dealing with a number of faults:
If fault DF009 Pedal potentiometer circuit gang 2 is
present at the same time, check that the pedal sensor
connector is connected correctly.
Check the pedal potentiometer connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity and insulation against earth of the following connections:
Injection computer, black 32-track connector A, track H2 Track 4 pedal potentiometer
connector
Injection computer, black 32-track connector A, track G2 Track 3 pedal potentiometer
connector
Repair if necessary.
Measure the resistance on the pedal potentiometer on track 1 between tracks 5 and 3.
Replace the pedal potentiometer if the resistance is not approximately 1.7 kΩ±0.9.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF008/EDC16_V48_DF008/EDC16_V4C_DF008

13B-37
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
DF009
PRESENT
OR
STOREDPEDAL POTENTIOMETER CIRCUIT GANG 2
CO.0 : open circuit or short circuit to earth
CC.1 : short circuit to + 12 V
1.DEF : signal incoherence
NOTESPriorities when dealing with a number of faults:
Deal with fault DF011 Sensor feed voltage no. 1 first if it is present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after a series of full-load/no-load actions on the
accelerator pedal.
Special notes:
Turbocharging and cruise control are not authorised,
The level 1 warning light comes on.
The engine speed is stuck at 1400 rpm if there is fault on gangs 1 and 2 of the pedal
potentiometer.
Use bornier Elé. 1681 for any work on the 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 test enables the condition and the conformity of the engine wiring harness to be checked.
CO.0
NOTESPriorities when dealing with a number of faults:
if fault DF008 Pedal potentiometer circuit gang 1 is
present at the same time, check that the pedal is
connected correctly.
Check the pedal potentiometer connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity, insulation and absence of interference resistance on the following connections:
Injection computer, black 32-track connector A, track F3 Track 1 pedal potentiometer
connector
Injection computer, black 32-track connector A track F2 Track 2 pedal potentiometer
connector
Repair if necessary.
Measure the pedal sensor resistance on track 2 across tracks 2 and 6.
Replace the pedal potentiometer sensor if the resistance is not approximately 2.85 kΩ±2.05.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF009/EDC16_V48_DF009/EDC16_V4C_DF009

13B-39
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
DF011
PRESENT
OR
STOREDSENSOR SUPPLY VOLTAGE NO. 1
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:
– cruise control is deactivated,
– the engine speed is limited,
–the level 1 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. 1 are:
–Turbocharging pressure sensor,
–Accelerator pedal potentiometer sensor, gang 1.
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 K2 Track 3 of the turbocharger pressure
sensor
Injection computer brown 48-track connector B, track G4 Track 1 of the turbocharger pressure
sensor
Injection computer black 32-track connector A, track G2 Track 3 of the accelerator pedal
potentiometer gang 1
Injection computer black 32-track connector A, track H2 Track 4 of the accelerator pedal
potentiometer gang 1
Repair if necessary.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by a check with the diagnostic tool.
EDC16_V44_DF011/EDC16_V48_DF011/EDC16_V4C_DF011