2011 RENAULT SCENIC start

13B-111V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
COLD LOOP SUB-FUNCTION (continued 2):
*When the air conditioning is requested with the engine idling and the vehicle speed = 0 mph (0 km/h),
ET022 will always be ACTIVE and ET021 INACTIVE (unless refrigerant pressure > 15 bar, vehicle speed
= 0 mph (0 km/h) and high coolant temperature). The fan assemblies are disabled under certain coolant
temperature conditions when driving.
When the UPC stops receiving multiplex transmissions from the injection, the fan assemblies are
constantly activated.
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or
Status Check or
actionDisplay and notes Fault finding
Power consumed
by the air
conditioning
compressorPR125: Power
consumed by the
air conditioning
compressor.
0 WATTIndicates the power consumed by the
compressor.NONE
Fan assembly
speed request*ET022: Low speed
fan assembly
request.
INACTIVE.The injection requests the UPC to start the fans.
- INACTIVE: The request was not made by the
injection because ET088 = INACTIVE and ET004
=NO.
- ACTIVE: The request was made by the injection.
ET088 = ACTIVE and ET004 = YES.
(Correct refrigerant pressure and vehicle speed
= 0 mph (0 km/h) or high coolant temperature).
NONE
ET021: High
speed fan
assembly request.
INACTIVE.The injection requests the UPC to start the fans.
- INACTIVE: The request was not made by the
injection because ET088 = INACTIVE and ET004
=NO.
- ACTIVE: The request was made by the injection.
ET088 = ACTIVE and ET004 = YES.
(Refrigerant pressure > 15 bar and vehicle speed
= 0 mph or high engine coolant temperature).

13B-113V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
FUEL CIRCUIT SUB-FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
Fuel temperaturePR063: Fuel temperature.
Cold = PR064
Warm: 50°CGives the fuel temperature in °C.
Default value: 30°C.In the event of a fault,
apply the fault finding
procedure for fault
DF098 "Fuel
temperature sensor
circuit".
Fuel flowPR017: Fuel flow.
10 < Cold < 2 mg/st
4 < Warm < 6 mg/stShows the fuel injected in mg/st for
each injector.NONE
Rail pressurePR038: Rail pressure.
Cold: 260 bar.
Warm: 230 barIndicates the pressure, in bar, of
the diesel fuel in the injector rail.
This pressure is supplied by the
sensor on the rail.
Default value: 2000 barIn the event of a fault
apply the fault finding
procedure for fault
DF007 "Rail pressure
sensor circuit".
Rail pressure set
pointPR008: Rail pressure
setpoint.
375 bar (Engine starting
pressure setpoint).
Cold: 260 bar.
Warm: 230 barGives the theoretical pressure
value for optimum engine
operation.NONE
Rail pressure
sensor voltage PR080: Rail pressure
sensor voltage.Shows the voltage supplied by
the computer to the rail pressure
sensor.
0.5 V (0 bar) < PR080 < 4.5 V
(1600 bar)NONE

13B-124V4 MR-372-J84-13B000$080.mif
13B
DDCR INJECTION
Vdiag No.: 44, 48
* RCH = passenger compartment heating resistor: TOOL STATE DIAGNOSTIC TOOL DESCRIPTION
ET001 + After ignition computer feed
ET003 Engine immobiliser
ET004 Air conditioning authorised.
ET006 Code programmed
ET008 EGR solenoid valve control
ET021 High speed fan assembly request
ET022 Low speed fan assembly request
ET023 Fast idle speed request
ET038 Engine
ET042 Cruise control/speed limiter
ET076 Starting
ET079 Air conditioning present
ET088 Compressor actuation request
ET405 Clutch pedal switch
ET415 Deactivation of cruise control/speed limiter
ET563 Flow capacity function.
ET111 RCH* number set
ET112 RCH* cut-off
ET703 Cruise control/speed limiter button
ET704 Brakecontact No 1
ET705 Brakecontact No 2
DIESEL INJECTION
Fault finding – Status summary table

13B-152V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
IMV = fuel flow actuator
TEST 6 High pressure system check
NOTESSpecial note:
Certain faults make it impossible to carry out this test - deal with these first.
IMPORTANT: It is pointless and dangerous to engage the starter motor for more
than 5 seconds.
Preliminary Checks:
– Check for the presence of fuel
– Check that there is no air in the low pressure circuit. Run TEST 1: Low pressure circuit check.
– Ensure that the correct fuel is being used. Run TEST 13 Diesel fuel conformity check.
It is possible to check the high pressure supply pump capacity by carrying out the following procedure:
–With the ignition off, disconnect the low pressure actuator from the pump (IMV brown connector) and connect
a test IMV or the MOT. 1711 adapter.
– Electrically disconnect the four injectors.
– Switch on the ignition, connect the diagnostic tool and re-establish dialogue with the injection system.
– Go to the Main computer statuses and parameters screen.
– Run the test cold, PR064 Coolant temperature < 30°C or equal to the ambient temperature.
– Engage the starter for 5 seconds.
– Read the rail pressure maximum value (PR038) during the test on the diagnostic tool.
Is the rail pressure greater than 1050 bar?
A
NO
B
YES
DDCR_V44_TEST06/DDCR_V48_TEST06

13B-155V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
TEST 8 Injector return flow
NOTESSpecial note:
Certain faults make it impossible to carry out this test - deal with these first.
Does the engine start?
Command AC029 also checks the return volume of each injector to detect an internal injector leak.
Be careful with any objects (tool or other) on the engine housing during the four cycles of the operation
(possible vibrations).
Tooling required
–Mot. 1711 Injector flow measuring kit.
Or: Use four pipes with internal diameter 4mm and approximately 50 cm in length, and four graduated measuring
cylinders.
Procedure
– Ensure that the engine coolant temperature is above 60°C,
– switch off the ignition,
– disconnect the return pipes from the four injectors,
– cap the pump venturi tube to prevent the low-pressure circuit from depriming,
– connect the four transparent tubes in place of the return pipes,
– put the other ends of the four pipes into four graduated measuring cylinders.
– After finishing these preparations, start the engine and let it idle for 2 minutes.
Note: This idle time must be respected for the test results to be interpreted correctly.
–Run command AC029 High pressure circuit sealing check
.The engine will automatically carry out a cycle of four accelerations to increase the rail pressure and measure the
internal injector leaks under these conditions.
–Once the cycle is complete, run command AC029 again to obtain a correct reading of the return volume of
each injector.
– Switch off the engine at the end of the cycle.
NOA
YES
DDCR_V44_TEST08/DDCR_V48_TEST08

13B-156V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
TEST 8
CONTINUED 1
At the end of both cycles, the return volume of each injector should be 35 ml maximum.
If the return volume of one of the injectors is greater than 35 ml, replace the faulty injector (see MR 364 (Mégane
II), MR 370 (Scénic II), Mechanical, 13B, Diesel injection, Diesel injector: Removal - Refitting).
Disconnect the 4 transparent pipes and reconnect the injector return circuit.
Carry out the following test to confirm the repair:
–With the ignition off, disconnect the low pressure actuator from the pump (brown IMV connector) and connect
the test adapter (test IMV, Mot. 1711),
– electrically disconnect the 4 injectors,
– switch on the ignition, connect the diagnostic tool and re-establish dialogue with the injection system,
– Go to the Main computer statuses and parameters screen,
– engage the starter for 5 seconds,
– read the rail pressure maximum value (PR038) on the diagnostic tool during the test.
If the rail pressure (PR038) is less than 1050 bar, run test 6 High pressure system check.
– Switch off the ignition, and reconnect the four injectors electrically,
– disconnect the test filling actuator (test IMV) and reconnect the low pressure actuator connector (IMV) to the
pump
Switch the ignition back on, and clear the injection faults using the diagnostic tool
If the rail pressure (PR038 Rail pressure) is greater than 1050 bar, the repair is correct
End of TEST 8.

13B-157V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
TEST 8
CONTINUED 2
If the engine does not start, only the static leak can be measured, that is the leak with the injector closed, not being
actuated and under high pressure.
Make sure that the ignition circuit is working correctly (minimum engine speed 200 rpm).
Tooling required
– Mot. 1711 Injector flow measuring kit.
Or: Use four tubes of internal diameter 4 mm and approximately 50 cm long and a test adapter (TEST IMV).
Procedure
– Switch off the ignition,
– disconnect the return pipes from the four injectors,
– cap the pump venturi tube to prevent the low-pressure circuit from depriming,
– connect the four transparent pipes in place of the return pipes (Mot. 1711),
– disconnect the low pressure actuator from the pump (brown IMV connector) and connect a test IMV or the
adapter of Mot. 1711,
– electrically disconnect the four injectors,
– switch on the ignition and engage the starter for 5 seconds,
– measure the amount of diesel fuel in each pipe.
Replace the injectors that have a leak return greater than 10 cm.
Switch off the ignition, and reconnect the four injectors electrically.
Disconnect the test IMV and reconnect the low-pressure actuator connector to the pump. Disconnect the
four transparent tubes and reconnect the injectors return circuit. Switch on the ignition again, and clear the injection
faults using the diagnostic tool.
A
NO

13B-158V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
TEST 8
CONTINUED 3
Carry out the following test to confirm the repair:
–With the ignition off, disconnect the low pressure actuator from the pump (brown IMV connector) and connect
the test adapter (test IMV, Mot. 1711),
– electrically disconnect the four injectors,
– switch on the ignition, connect the diagnostic tool and re-establish dialogue with the injection system,
– go to the Main computer statuses and parameters screen,
– engage the starter for 5 seconds,
– read the rail pressure maximum value (PR038) during the test on the diagnostic tool.
If the rail pressure (PR038) is less than 1050 bar, run test 6 High pressure system check.
– Switch off the ignition, and reconnect the four injectors electrically,
– disconnect the test IMV and reconnect the low-pressure actuator connector to the pump,
– switch on the ignition again, and clear the injection faults using the diagnostic tool.
If the rail pressure (PR038 Rail pressure) is greater than 1050 bar, the repair is correct
End of TEST 8.