2011 RENAULT SCENIC air conditioning

13B-162
MR-372-J84-13B200$468.mif
V13
13B
DIESEL INJECTION
Fault finding – Status summary table
Tool status Diagnostic tool title
ET001+ After ignition computer feed
ET003Engine immobiliser
ET004Air conditioning authorisation
ET007Pre-postheating unit control
ET014Monitor cooling fan 1
ET015Monitor cooling fan 2
ET021High speed fan assembly request
ET022Low speed fan assembly request
ET038Engine
ET042Cruise control/speed limiter
ET076Starting
ET077Impact detected
ET079Air conditioning present
ET088Compressor actuation request
ET104Injector code use
ET111Number of passenger compartment heating resistors fixed (Vdiag 50 only)
ET112Passenger compartment heating resistors cut out (Vdiag 50 only)
ET143Low-speed fan assembly relay control (Vdiag 18, 1C, 20 only)
ET144High-speed fan assembly relay control (Vdiag 18, 1C, 20 only)
ET205Heating element no. 1 relay control (Vdiag 58 only)
ET206Heating element no. 2 relay control (Vdiag 58 only)
ET207Heating element no. 3 relay control (Vdiag 58 only)
ET238Synchronisation
ET341Immobiliser code programmed
ET405Clutch pedal switch
ET415Cruise control/speed limiter deactivation
ET651EGR programming cut-off
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
MR-372-J84-13B200$468.mif

13B-167
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET004
AC AUTHORISED
STATUS DEFINITIONYES, this status indicates that the air conditioning is active.
NO, this status indicates that the air conditioning is inactive.
NOTESSpecial notes
Only perform these tests if the statuses do not correspond with the system
programming functions.
Engine running, engine coolant temperature > 80 °C
YES
The air conditioning authorisation only changes to YES if:
– the air conditioning request has been made by the driver (air conditioning switch in
AC or AUTO position with minimum ventilation),
– the engine is not under full load,
– the air conditioning system is not faulty.
Conformity check with engine stopped and ignition on
NOStatus ET004 remains NO under the following conditions:
– Vehicle stopped with the ignition on,
– faults present in the air conditioning circuit,
– no air conditioning request made by the driver,
– engine under full load.
If status ET004 remains NO then the air conditioning should be authorised, check:
– that the air conditioning compressor is activated correctly,
– the air conditioning system feed fuses,
– the presence of refrigerant in the air conditioning circuit,
– that the refrigerant fluid pressure value is consistent at idle speed.
If the fault is still present, check the air conditioning computer faults (see62C, Air
conditioning).
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_ET004/EDC16_V58_ET004/EDC16-V5C_ET004/EDC16_V18_ET004/EDC16_V1C_ET004/EDC16-V20_ET004

13B-170
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET014
CHECK COOLING FAN 1
STATUS DEFINITIONRUNNING, this status indicates that the fan assembly is engaged.
STOPPED, this status indicates that the fan assembly is not engaged.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
NOTE:
Statuses ET014 and ET022 Low-speed fan assembly request change status simultaneously.
Conformity check with the engine stopped and the ignition on, or engine running, and engine coolant
temperature > 80°C
RUNNING
The low-speed engine fan is supplied in three scenarios:
– the engine coolant temperature is greater than 89°C,
– the air conditioning is operating,
– the injection computer has system faults that could lead to the engine overheating.
When the low-speed fan assembly is supplied:
–status ET014 becomes RUNNING and status ET022 Low-speed fan assembly
request becomes ACTIVE.
If the low-speed fan assembly does not work, refer to the fault finding note for the
Protection and Switching Unit (Vdiag 18, 1C, 20 only).
Conformity check with engine stopped and ignition on.
STOPPEDThe low-speed fan assembly stops when:
– the engine coolant temperature is less than 89°C
– the air conditioning is not switched on by the driver.
IMPORTANT!WARNING
If the Protection and Switching Unit (Vdiag 18, 1C, 20 only) no longer detects the injection
computer signals, the low-speed fan assembly is supplied until the battery is completely
discharged.
If the low-speed fan assembly is defective, the high-speed fan assembly will be activated.
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
EDC16_V50_ET014/EDC16_V58_ET014/EDC16_V5C_ET014/EDC16_V18_ET014/EDC16_V1C_ET014/EDC16_V20_ET014

13B-173
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET022
LOW SPEED GMV CONTROL
STATUS DEFINITIONRUNNING, this status indicates that the high-speed fan assembly has been requested.
STOPPED, this status indicates that the high-speed fan assembly has not been
requested.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
NOTE:
Statuses ET022 and ET014 Fan assembly 1 check change status simultaneously.
Conformity check with the engine stopped and the ignition on, or engine running, and engine coolant
temperature > 80°C
ACTIVE
The injection computer requests the activation of the low speed GMV when:
– the engine coolant temperature is greater than 89°C,
– the injection computer has system faults that could lead to the engine overheating,
– the air conditioning is switched on by the driver.
When the high speed fan is supplied:
–status ET022 becomes ACTIVE,
–status ET014 Fan assembly 1 check becomes RUNNING.
Conformity check with engine stopped and ignition on
INACTIVEThe low-speed fan assembly stops when:
– the engine coolant temperature is below 89°C,
– no fault which could cause engine overheating is present in the injection
system.
the air conditioning is not requested by the driver
IMPORTANT!WARNING
If the Protection and Switching Unit (Vdiag 18, 1C, 20 only) no longer detects the injection
computer signals, the low-speed fan assembly is supplied until the battery is completely
discharged.
If the low-speed fan assembly is defective, the high-speed fan assembly will be activated.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_ET022/EDC16_V58_ET022/EDC16_V5C_ET022/EDC16_V18_ET022/EDC16_V1C_ET022/EDC16_V20_ET022

13B-184
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET088
REQUEST TO START COMPRESSOR
STATUS DEFINITIONACTIVE: This status indicates that the compressor is engaged.
INACTIVE: This status indicates that the compressor is not engaged.
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
Engine running, engine coolant temperature > 80 °C
ACTIVE
Status ET088 becomes ACTIVE if there has been a request for air conditioning (“AC” or
“AUTO” button pressed, with maximum cold) and if status ET004 Air conditioning
authorisation is YES.
The selection is made on the air conditioning control panel, the request for air
conditioning is transmitted to the UCH which in turn transmits the request to the
injection computer which either authorises or does not authorise compressor activation.
If the injection computer authorises compressor activation, it sends the compressor
activation request to the Protection and Switching Unit (Vdiag 18, 1C, 20 only) and
status ET088 becomes ACTIVE (climate control).
If the vehicle is equipped with manual air conditioning, the air conditioning request is
transmitted from the air conditioning control panel to the UCH which then accepts or
does not accept the air conditioning compressor coming on depending on the operating
status of the passenger compartment fan. When the request has been accepted, the
request to switch on the compressor is transmitted to the injection computer which
either authorises or does not authorise the compressor to start.
If the injection computer authorises compressor activation, it sends the compressor
activation request to the Protection and Switching Unit (Vdiag 18, 1C, 20 only) and
status ET088 becomes ACTIVE.
If there has been no compressor activation request and status ET088 remains ACTIVE
(see62A, Air conditioning).
Note:
Compressor operation is only authorised when the engine is running.
Compressor switch-on is finally requested by the Protection and Switching
Unit (Vdiag 18, 1C, 20 only).
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
EDC16_V50_ET088/EDC16_V58_ET088/EDC16_V5C_ET088/EDC16_V18_ET088/EDC16_V1C_ET088/EDC16_V20_ET088

13B-185
MR-372-J84-13B200$504.mif
V13
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5CDIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET088
CONTINUED
Conformity check with engine stopped and ignition on
INACTIVE
Status ET088 is INACTIVE when there has been no air conditioning request and
when compressor activation has not been authorised (ET004 Air conditioning
authorisation is NO or when the driver switches off the air conditioning).
If compressor activation has been requested and status ET088 remains INACTIVE
(see 62A, Air conditioning).
Note:
Compressor operation is only authorised when the engine is running.
Compressor switch-on is finally requested by the Protection and Switching Unit
(Vdiag 18, 1C, 20 only).
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.

13B-189
MR-372-J84-13B200$504.mif
V13
13B
DIESEL INJECTION
Fault finding – Interpretation of statuses
ET143
LOW-SPEED FAN ASSEMBLY RELAY CONTROL
STATUS DEFINITIONACTVE: This status indicates that the low-speed fan assembly relay is actuated.
INACTIVE: This status indicates that the low-speed fan assembly relay is not actuated.
NOTESIf the vehicle is fitted with air conditioning, the fan assembly electrical circuit contains
2 relays. The fan assembly speed 1 relay will be actuated when the engine coolant
temperature exceeds 96° and will be dedicated to cooling the engine as long as the
engine coolant temperature does not exceed 99°.
If the engine coolant temperature exceeds 99°, fan assembly speed 2 relay will be
actuated and the engine cooling fan will run more quickly.
ACTIVE
When the coolant reaches 96°C, the diesel computer actuates the low-speed fan
assembly relay and status ET143 becomes ACTIVE.
The relay then supplies the fan assembly and the cooling fan begins to turn.
Run command AC038 Low-speed fan unit relay and check visually that the cooling
fan is turning.
If this is not the case, carry out the following operations:
– check the condition of fuse FM15 (60A) and the motor relay R09,
– disconnect the low-speed and high-speed relays, check their operation and the
condition of the connections.
– repair if necessary,
– check for a + 12 V on connection 3FB of the low speed relay when it is actuated
then check the continuity and the absence of interference resistance on connection
3JN between components 120 and 597.
If the connection or connections 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.
INACTIVEIf the engine temperature is less than 96°C, the engine cooling fan cannot switch on
and the low-speed fan assembly relay cannot be actuated.
Sta tus ET143 becomes INACTIVE when the control relay and the engine cooling fan
are not supplied.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V18_ET143/EDC16_V1C_ET143/EDC16_V20_ET143EDC16
Program No: C1
Vdiag No: 18, 1C, 20

13B-210
MR-372-J84-13B200$576.mif
V13
13B
DIESEL INJECTION
Fault finding – Parameter summary table
* OCR: Opening cyclic ratioTool parameter Diagnostic tool title
PR002Alternator charge
PR005EGR valve opening setpoint
PR006Rail pressure regulator current
PR007Rail pressure regulator current setpoint
PR008Rail reference pressure
PR009Turbocharging pressure setpoint
PR011Turbocharging solenoid valve position sensor
PR015Engine torque
PR016Alternator flow (Vdiag 50, 58, 5C only)
PR017Fuel flow
PR022EGR valve position feedback loop difference
PR030Accelerator pedal position
PR035Atmospheric pressure
PR037Refrigerant pressure
PR038Rail pressure
PR041Turbocharging pressure
PR043Heating element power authorised
PR045Power requested by thermoplungers
PR047Turbocharging pressure *OCR
PR048Refrigerant pressure regulation valve *OCR
PR051EGR valve position feedback
PR053Engine speed requested by air conditioning
PR055Engine speed
PR058Inlet air temperature (Vdiag 18, 1C and 20 only)
PR059Inlet air temperature (Vdiag 50, 58 and 5C only)
MR-372-J84-13B200$576.mif
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C