air condition RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals Repair Manual

13B-81
AFTER REPAIRDeal with any faults declared by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF130
STOREDFLOW CAPACITY FUNCTION
NOTESSpecial notes:
If DF130, the engine may stop with the level 1 and 2 warning lights illuminated along
with the message Faulty injection.
Conditions for applying fault finding procedures to stored faults:
The fault is present with the engine running.
Check the connection and condition of the of the fuel flow actuator connector (IMV), and repair it if necessary.
Measure the resistance between tracks 1 and 2 of the flow actuator.
Replace the flow actuator if the resistance is not 5.3 Ω ± 0.5 Ω at 20°C.
Check the connection and condition of the computer 48-track brown connector B.
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the following connection:
Computer connector B track M4 track 1 fuel flow actuator
Repair if necessary.
Check that there is fuel present in the tank and that it is correct. Run Test 13 Diesel fuel conformity check.
Run Test 1 Low pressure circuit check.
Run Test 6 High pressure system check.
Repair if necessary.
DDCR_V44_DF130M/DDCR_V48_DF130M

13B-82
AFTER REPAIRDeal with any faults declared by the diagnostic tool. Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V4 MR-372-J84-13B000$062.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DDCR INJECTION
Vdiag No.: 44, 48
DF1070
PRESENT
OR
STOREDCOLD LOOP
1.DEF: Jammed component
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present with the engine running and with a climate control request.
Priorities when dealing with a number of faults:
– DF049 Refrigerant sensor circuit if it is present or stored.
When the fault is present or stored, the heating and air conditioning system is inhibited. There is no longer any air
conditioning.
Check fuse F22 (10 A) of the UPC, component code 1337.
Check the connector of the air conditioning compressor, component code 171.
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.
Check the wiring of the air conditioning compressor.
If the wiring is faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Manually check if the compressor is jammed (turn the clutch plate manually to check that there is no point of
resistance). In the event of jamming, replace the air conditioning compressor (see MR 364 (Mégane II), MR 370
(Scénic II), Mechanical, 62A, Air conditioning, Compressor: Removal - Refitting).
Top up the refrigerant, check for any leaks, and repair if necessary (see MR 364 (Mégane II), MR 370 (Scénic II),
Mechanical, 62A, Air conditioning, Refrigerant circuit: Draining - Filling).
DDCR__V44_DF1070 / DDCR_V48_DF1070

13B-83V4 MR-372-J84-13B000$070.mif
13B
DDCR INJECTION
Vdiag No.: 44, 48
MAIN STATUSES AND PARAMETERS OF THE COMPUTER:
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
Battery
voltagePR074: Battery
voltage12 V < PR074 < 13.5 VIf there is a fault, apply the
fault finding procedure for the
"Charge circuit".
Engine speedPR055: Engine
speedIndicates the engine's speed of
rotation in rpm.In the event of a fault, apply
the fault finding procedure for
DF005 "Engine speed sensor
circuit".
Accelerator
pedal positionPR030: Accelerator
pedal position.
0%Indicates the position of the
accelerator pedal as a %.
PR030 = 0 %In the event of a fault, apply
the fault finding procedure for
Pedal sensor circuit gang 1
and gang 2
(DF008 and DF009)
and DF113 Sensor supply
voltage.
Coolant
temperaturePR064: Coolant
temperature.
Warm: 90 °CIndicates the coolant
temperature in °C.
Default value: 80°CIn the event of a fault, consult
the interpretation of
parameter PR064 Coolant
temperature.
External air
temperaturePR061: External air
temperatureGives the external air
temperature in °C. This
parameter is controlled by the
UCH and transmitted to the
injection via the multiplex
network.
Default value: 20°C.In the event of a fault, apply
the fault finding procedure for
this fault described in the
UCH document.
DIESEL INJECTION
Fault finding – Conformity check

13B-84V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
MAIN COMPUTER STATUSES AND PARAMETERS: (continued 1)
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
Inlet air
temperature
(invalid for
K9K 728)PR059: Inlet air
temperature.
Cold = PR061
Warm: 30°CIndicates the inlet air
temperature in °C. This
information is provided by the
air temperature/pressure
sensor.
Default value: 30°CIn the event of a fault, refer to
the interpretation of
parameter PR059 Inlet air
temperature.
Fuel
temperaturePR063: Fuel
temperature.
Cold = PR064
Warm: 50°CGives the fuel temperature
in °C. This value is supplied by
"the fuel temperature sensor".
Default value: 30°CIn the event of a fault, apply
the fault finding procedure for
fault DF098 "Fuel temperature
sensor circuit".
Air circuit
pressure.PR035: Atmospheric
pressure.Indicates the atmospheric
pressure in mbar. The sensor is
built into the computer.If not consistent, check that
PR035 = PR032 = local
atmospheric pressure,
with the engine stopped
and the ignition on. PR032: Inlet
pressure.Indicates the pressure in the
inlet circuit in mbar.
Rail pressurePR038: Rail
pressure.
cold and hot:
-90 bar < PR038
<90barIndicates 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".

13B-89V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
COLD LOOP 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
Air conditioning
presentET079: Air
conditioning
present.
YESIndicates whether the vehicle is
fitted with air conditioning or not.
- YES: Air conditioning is
detected by the injection
computer.
- NO: Air conditioning is not
detected by the injection
computer.If inconsistent with the vehicle
equipment, perform a multiplex
network test and apply the
associated procedure.
Compressor
activation requestET088: Compressor
activation request.
INACTIVEThe injection requests the
Protection and Switching Unit
(via the multiplex network) to
start the compressor.
- ACTIVE: The multiplex network
must not be faulty on the
Automatic transmission,
Protection and Switching Unit, or
UCH systems. The UCH should
request the injection to be
engaged. The coolant pressure
sensor must not be defective.
Satisfactory engine operating
conditions (Coolant temperature,
engine load, etc.).
- INACTIVE: One of the above
conditions is not fulfilled.NONE

13B-90V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
COLD LOOP SUB-FUNCTION (continued 1):
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
Air conditioning
authorisedET004: Air
conditioning
authorised.
NONon operational information,
designed solely for fault finding
purposes.
- YES: Satisfactory engine
operating conditions (coolant
temperature, engine load etc.).
The vehicle is not in a specific
movement phase (hill start, start
from stop etc.).
- NO: One of the above
conditions is not fulfilled.NONE
Refrigerant
pressure.PR037: Refrigerant
pressure.Gives the value in BAR for the
refrigerant fluid in the system.
2 bar < PR037 < 27 bar
Default value: 0 barIf there is a fault apply the fault
finding procedure for DF049
"Refrigerant sensor circuit". If
the fault is still present, replace
the refrigerant sensor.
Engine speedPR055: Engine
speed.Indicates the engine's speed of
rotation in rpm.In the event of a fault, apply the
fault finding procedure for
DF005 "Engine speed sensor
circuit".
Fast idle speed
requestET023: Fast idle
speed request.
ABSENTThe UCH requests fast idle speed
from the injection.
- ABSENT: The UCH did not make
a request.
- PRESENT: The UCH made
a request.If ET023 is inconsistent, carry
out a multiplex network test
using the diagnostic tool. If the
test is correct, consult the fault
finding procedure for the UCH.
Coolant
temperaturePR064: Coolant
temperature.
Warm: 90°CIndicates the coolant
temperature in °C.
Default value: 80°CIn the event of a fault, consult
the interpretation of parameter
PR064 Coolant temperature.

13B-91V4 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, 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
Vehicle speedPR089: Vehicle
speed.Indicates the vehicle speed in mph.
This parameter is transmitted by the
ABS computer or by the vehicle
speed ECU. This signal is
transmitted to the injection system
on the multiplex network.Test the multiplex network.
Refer to fault finding for the
ABS or the vehicle speed
ECU.
Power consumed
by the air
conditioning
compressorPR125: Power
consumed by the air
conditioning
compressor.
0 WIndicates the power consumed by
the compressor.NONE
Speed request
for fan
assembly*ET022: Low speed
fan assembly
request.
INACTIVE.The injection requests the UPC to
start the fans.
- INACTIVE: Because engine speed
= 0 rpm.
- ACTIVE: Engine speed = idle
speed, correct refrigerant pressure
and vehicle speed = 0 mph (km/h),
or high coolant temperature.NONE
Speed request
for fan
assembly*ET021: High speed
fan assembly
request.
INACTIVE.The injection requests the UPC to
start the fans.
- INACTIVE: Because engine speed
= 0 rpm.
- ACTIVE: Engine speed = idle
speed. Refrigerant pressure
> 15 bar, vehicle speed = 0 mph,
or high coolant temperature.NONE

13B-95V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
PRE-HEATING/IGNITION 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
Coolant
temperaturePR064: Coolant
temperature.
Warm: 90 °CIndicates the coolant
temperature in °C.
Default value: 80°CIn the event of a fault, consult
the interpretation of
parameter PR064 Coolant
temperature.
External air
temperaturePR061: External air
temperatureGives the external air
temperature in °C. This
parameter is controlled by
the UCH and transmitted to
the injection via the multiplex
network.
Default value: 20°CIn the event of a fault, apply
the fault finding procedure for
this fault described in
the UCH document.
Inlet air
temperature
(invalid for
K9K 728)PR059: Inlet air
temperature.
Cold = PR061
Warm: 30°CIndicates the inlet air
temperature in °C. This signal is
provided by the air temperature/
pressure sensor.
Default value: 30°C.In the event of a fault, refer to
the interpretation of
parameter PR059 Inlet air
temperature.
Battery
voltagePR074: Battery
voltage12 V < PR074 < 13.5 VIf there is a fault, apply the
fault finding procedure for
the "Charge circuit".

13B-96V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
AIR CIRC. SUB-FUNCTION (TURBO/INLET):
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
Inlet air
temperature
(invalid for
K9K 728)PR059: Inlet air
temperature.
Cold = PR061
Warm: 30°CIndicates the inlet air
temperature in °C. This signal is
provided by the air temperature/
pressure sensor.
Default value: 30°C.In the event of a fault, refer to
the interpretation of
parameter PR059 Inlet air
temperature.
Air circuit
pressurePR035: Atmospheric
pressure.Indicates the atmospheric
pressure in mbar. The sensor is
built into the computer.If not consistent, check that
PR035 = PR032 =
local atmospheric pressure,
with the engine stopped
and the ignition on. PR032: Inlet
pressure.Indicates the pressure in
the inlet circuit in mbar.
Air flow PR132: Air flow.Air flow estimated by
the injection computer.NONE
Inlet
temperature
sensor voltagePR081: Inlet
temperature sensor
voltage.Indicates the voltage, in volts,
delivered by the computer to
supply the inlet temperature
sensor.NONE
Engine speedPR055: Engine
speed.Indicates the engine's speed of
rotation in rpm.In the event of a fault, apply
the fault finding procedure for
DF005 "Engine speed sensor
circuit".

13B-99V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
EMISSION CONTROL/OBD 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
EGR valve
controlET008: EGR valve
control.
INACTIVEIndicates the EGR valve control
status.
- INACTIVE: The valve is not
controlled by the computer.
- ACTIVE: The valve is controlled
by the computer.NONE
Atmospheric
pressurePR035: Atmospheric
pressure.Indicates the atmospheric
pressure in mbar. The sensor is
built into the computer.If not consistent, check that
PR035 = PR032 = local
atmospheric pressure, with
the engine stopped
and the ignition on.
Air flow PR132: Air flow.Air flow estimated by the
injection computer.NONE
Fuel flowPR017: Fuel flow.
0.0 mg/stGives the fuel flow at the high
pressure pump outlet in mg/st.NONE
EGR valve
opening
setpointPR005: EGR valve
opening setpoint.
Warm or cold = -50Gives a theoretical EGR valve
opening value for optimum
engine operation.
PR005 = PR051NONE
EGR valve
position
feedbackPR051: EGR valve
position feedback.
Warm or cold = -50Shows the true EGR valve
position.
PR051 = PR005NONE