ignition RENAULT SCENIC 2009 J84 / 2.G Air Conditioning Climate Control User Guide

62B-18
CLIMATE CONTROL
Fault finding – Interpretation of faults62B
V3 MR-372-J84-62B000$060.mif
Vdiag No.: 44
DF012
PRESENT
OR
STOREDDISTRIBUTION MOTOR CIRCUIT
CO.0 : Open circuit or short circuit to earth
CC.1 : Short circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
–switching the climate control panel on and pressing the distribution control (selection
set to de-icing, ventilation, footwells, etc.).
Special notes:
–After repairing the fault (when the fault switches from "present" to "stored"), wait for
1 minute before the climate control computer is able to control the distribution motor.
To avoid having to wait, switch the ignition off and then back on again.
–There is no specific programming operation for the distribution motor, however, after
it has been replaced, the motor needs to program its limits (minimum and maximum).
Check the connection and condition of the distribution motor connector.
Replace the connector if necessary.
Disconnect connector B (18-track) from the climate control computer in order to check the insulation,
continuity and the absence of interference resistance of the following connections:
Computer connector B track 11 track 1 of the distribution motor
Computer connector B track 12 track 6 of the distribution motor
Computer connector B track 13 track 3 of the distribution motor
Computer connector B track 14 track 4 of the distribution motor
Computer connector B track 8 track 2 of the distribution motor
track 2 of the mixing motor
Repair if necessary.
With the climate control computer connector connected and the ignition on (climate control panel on), ensure
that there is a 12 V supply on track 2 of the distribution motor connector. If the supply is not present and if no
faulty connections are detected during the continuity checks: contact your Techline.
AFTER REPAIRClear the fault memory.
Follow the instructions to confirm repair.
If the motor has been replaced, refer to the Configurations and Programming
section.
Deal with any other faults.
ACREG X84 1.1
Edition 2

62B-21
CLIMATE CONTROL
Fault finding – Interpretation of faults62B
V3 MR-372-J84-62B000$060.mif
Vdiag No.: 44
DF026
PRESENT
OR
STOREDSOLAR RADIATION SENSOR CIRCUIT
CC.0 : Short circuit to earth
CO.1 : Short circuit or open circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
Apply this fault finding procedure if the fault appears as present or stored again after:
–clearing the fault and switching the ignition off then back on.
Special notes:
The solar sensor (a little black button) is located on top of the dashboard, on the
windscreen side.
Check that the solar sensor is not "shaded" by any objects (nothing should be placed on top of the sensor).
Check the connection and condition of the solar radiation sensor connector.
Replace the connector if necessary.
Disconnect connector A (12-track) from the climate control computer in order to check the insulation,
continuity and absence of interference resistance of the connections:
Computer connector A track 4 Track 2 of the solar radiation sensor
Computer connector A track 12 Track 1 of the solar radiation sensor
Track 5 of the internal temperature sensor
Repair if necessary.
With the ignition on, the solar radiation sensor electrically connected and the climate control panel on, ensure
that the solar radiation sensor supplies a voltage (signal) to the climate control computer.
To find out the voltage that the sensor should be supplying as a function of solar radiation intensity, consult the
interpretation of this parameter (Interpretation of parameters section).
If the fault is still present, replace the solar radiation sensor.
AFTER REPAIRClear the fault memory.
Deal with any other faults.
ACREG X84 1.1
Edition 2

62B - 22
CLIMATE CONTROL
Fault finding – Interpretation of statuses62B
V3 MR-372-J84-62B000$070.mif
Vdiag No.: 44
CLIMATE CONTROL
Fault finding – Interpretation of statuses
ET007
COMPUTER + AFTER IGNITION FEED
NOTESNone.
This status shows the + 12 V after ignition feed supplied by the Protection and Switching Unit.
When the ignition is off, the status displays: ABSENT.
When the ignition is on, the status displays: PRESENT.
If the fault is still present, carry out fault finding on the Protection and Switching Unit: Check that status
ET003 After ignition relay control is working correctly and check that fault DF001 After ignition relay control
circuit is not present.
Carry out any repairs necessary (see corresponding fault finding procedures).
If the fault is still present: disconnect connector A (12-track) from the climate control computer to check the
insulation, continuity and absence of interference resistance of the following connections:
Computer connector A track 10 + accessories feed (7.5 A fuse in the Protection and
Switching Unit)
Computer connector A track 11 + before ignition feed (20 A fuse of the UCH)
Computer connector A track 6 Earth (left-hand dashboard beam)
Repair if necessary.
If the connections are correct and the climate control computer is correctly supplied but the fault is still present:
carry out fault finding on the electric charge circuit.
AFTER REPAIRRepeat the conformity check from the start.
ACREG X84 1.1
Edition 2
MR-372-J84-62B000$070.mif

62B - 29
CLIMATE CONTROL
Fault finding – Interpretation of parameters62B
V3 MR-372-J84-62B000$080.mif
Vdiag No.: 44
PR006
SOLAR RADIATION
NOTESNone.
The solar sensor is used to improve the comfort level of the air conditioning according to the windscreen solar
radiation.
This sensor measures the solar radiation level and transmits the information to the climate control computer
in the form of a measurement in W/m
2. This measurement ranges from 0 to 400 W. The sensor is faulty if it
gives a value of 400 W although the vehicle is in the shade (in the workshop) as this value equals maximum
solar radiation.
If the value displayed by this parameter seems to be incorrect: check the signal transmitted by the sensor
based on the solar radiation, by measuring between track 2 of the sensor and earth (solar sensor connected
electrically, ignition on and control panel on).
0 W 4.91 V
50 W 4.28 V
100 W 3.70 V
200 W 2.55 V
300 W 1.40 V
400 W 0.30 V
If the fault is still present, apply the fault finding procedure for fault: DF026 Solar sensor circuit.
AFTER REPAIRRepeat the conformity check from the start.
ACREG X84 1.1
Edition 2

62B - 33
CLIMATE CONTROL
Fault finding – Interpretation of parameters62B
V3 MR-372-J84-62B000$080.mif
Vdiag No.: 44
PR092
BATTERY VOLTAGE
NOTESNone.
This parameter specifies the supply voltage of the climate control computer.
This parameter should indicate a voltage equal to: 10.5 < X < 14.4 V.
If the voltage is not within the specified range, disconnect connector A (12-track) of the climate control
computer to check the insulation, continuity and absence of interference resistance of the connections:
Computer connector A track 10 + accessories feed (7.5 A fuse in the Protection and
Switching Unit)
Computer connector A track 11 + before ignition feed (20 A fuse of the UCH)
Computer connector A track 6 Earth (left-hand dashboard beam)
Repair if necessary.
If the connections are correct but the fault still persists, perform fault finding on the charging circuit.
AFTER REPAIRRepeat the conformity check from the start.
ACREG X84 1.1
Edition 2

62B - 35
CLIMATE CONTROL
Fault finding – Conformity check62B
V3 MR-372-J84-62B000$090.mif
Vdiag No.: 44
CLIMATE CONTROL
Fault finding – Conformity check
PASSENGER COMPARTMENT VENTILATION SUB-FUNCTION
NOTESOnly carry out this conformity check after a full check with the diagnostic tool (fault
reading and configuration checks).
Test conditions: engine off, ignition on (forced 12 V After ignition).
Air conditioning off
(air conditioning compressor not triggered).
Special note:
The various conformity checks
for the air conditioning function are explained in the
Introduction section.
Note:
–Read the parameters when the vehicle is cold (in the morning) to check the
conformity of the temperature parameters (without thermometer). The two
temperatures should be practically the same (as should the coolant temperature
given by the injection system).
–The invalid values given in this check correspond to the value sent by the diagnostic
tool (substitute value) when the sensor in question is faulty. A sensor fault can be
detected when these invalid values are displayed (this is an important point for
sensors on which fault finding cannot be performed, e.g. exterior temperature
sensor).
Order FunctionParameter or Status
checked or Action Display and Notes Fault finding
1TemperaturesPR001:Interior
temperatureX = interior
temperature ± 5 ˚C
(invalid value: 87.5 ˚C)If there is a fault, refer to the
fault finding procedure
for this parameter.
PR002:Exterior
temperatureX = exterior
temperature ± 5 ˚C
(invalid value: 215 ˚C)
Note: This status is
reset by the climate
control computer but
its source is the UCH.In the event of a fault, refer
to the interpretation of this
parameter (see
Section 87B).
2Solar radiationPR006:Solar radiationfrom 0 W
(no solar radiation) to
400 W
(maximum solar
radiation)
(invalid value:
765 W)In the event of a fault, see
the interpretation of this
parameter.
ACREG X84 1.1
Edition 2
MR-372-J84-62B000$090.mif

62B - 37
CLIMATE CONTROL
Fault finding – Conformity check62B
V3 MR-372-J84-62B000$090.mif
Vdiag No.: 44
COLD LOOP SUB-FUNCTION
NOTESOnly carry out this conformity check after a full check with the diagnostic tool (fault
reading and configuration checks).
Test conditions: engine off, ignition on (forced 12 V After ignition).
Air conditioning off (air conditioning compressor not triggered).
Special note:
The various conformity checks
for the air conditioning function are explained in the
Introduction section.
Order FunctionParameter or Status
checked or Action Display and Notes Fault finding
1Request to
engage the
compressorET143:Air conditioning
request 1ACTIVE for air
conditioning request
(AC button pressed or
AUTO button pressed
with maximum cold
request).
INACTIVE the
opposite.If there is a fault, refer to the
fault finding procedure
for this status.
Note: This status
represents the request from
the climate control
computer to the UCH to
switch on the compressor
(refer to the flowchart in the
system operation section).
2TemperaturePR001:Interior
temperatureX = interior
temperature ± 5 ˚C
(invalid value: 87.5 ˚C)If there is a fault, refer to the
fault finding procedure
for this parameter.
3Passenger
compartment
blowerET141:Passenger
compartment
blowerRUNNING
or
STORED
depending on user
requestIf there is a fault, refer to the
fault finding procedure
for this status.
4Air flapPR012:Mixing flap
position0% = Max cold
position (15 ˚C)
100% = Max hot
position (27 ˚C)If there is a fault, refer to the
fault finding procedure
for this parameter.
5Solar radiationPR006:Solar radiationfrom 0 W (no sunlight)
to 400 W (maximum
sunlight).
(invalid value: 765 W)If there is a fault, refer to the
fault finding procedure
for this parameter.
ACREG X84 1.1
Edition 2

62B - 38
CLIMATE CONTROL
Fault finding – Conformity check62B
V3 MR-372-J84-62B000$090.mif
Vdiag No.: 44
USER SELECTION SUB-FUNCTION
NOTESOnly carry out this conformity check after a full check with the diagnostic tool (fault
reading and configuration checks).
Test conditions: engine off, ignition on (forced 12 V After ignition).
Air conditioning off (air conditioning compressor not triggered).
Special note:
The various conformity checks
for the air conditioning function are explained in the
Introduction section.
Order FunctionParameter or Status
checked or Action Display and Notes Fault finding
1Heated rear
screenET086:Heated rear
screen: manual
modeACTIVE: De-icing
button at the bottom of
the control panel
pressed.
INACTIVE: the
opposite.If there is a fault, refer to the
fault finding procedure
for this status.
ET085:Heated rear
screen:
automatic modeACTIVE: De-icing
button at the top of the
control panel pressed
(See Clear function).
INACTIVE: the
opposite.If there is a fault, refer to the
fault finding procedure
for this status.
2Request to
engage the
compressorET143:Air conditioning
request 1ACTIVE for air
conditioning request
(AC button pressed or
AUTO button pressed
with maximum cold
request).
INACTIVE the
opposite.If there is a fault, refer to the
fault finding procedure
for this status.
Note: This status
represents the request from
the climate control
computer to the UCH to
switch on the compressor
(refer to the flowchart in the
system operation section).
ACREG X84 1.1
Edition 2

62B - 39
CLIMATE CONTROL
Fault finding – Conformity check62B
V3 MR-372-J84-62B000$090.mif
Vdiag No.: 44
HEATING SUB-FUNCTION
NOTESOnly carry out this conformity check after a full check with the diagnostic tool (fault
reading and configuration checks).
Test conditions: engine off, ignition on (forced 12 V After ignition).
Air conditioning off (air conditioning compressor not triggered).
Special note:
The various conformity checks
for the air conditioning function are explained in the
Introduction section.
Order FunctionParameter or Status
checked or Action Display and Notes Fault finding
1Mixing motorPR012:Mixing flap
position0% = Max cold position
(15 ˚C)
100% = Max hot
position (27 ˚C)If there is a fault, refer to the
fault finding procedure
for this parameter.
2Heated rear
screenET086:Heated rear
screen: manual
modeACTIVE: De-icing
button at the bottom of
the control panel
pressed.
INACTIVE the
opposite.In the event of a fault, refer
to the interpretation of
this status.
ET085:Heated rear
screen:
automatic modeACTIVE: De-icing
button at the top of the
control panel pressed
(Clear view function).
INACTIVE the
opposite.If there is a fault, refer to the
fault finding procedure
for this status.
3Passenger
compartment
blowerPR001:Interior
temperatureX = interior
temperature ± 5 ˚C
(invalid value: 87.5 ˚C).If there is a fault, refer to the
fault finding procedure
for this parameter.
PR121:Blown air
temperature
setting0 < X < 80 ˚CIf there is a fault, refer to the
fault finding procedure
for this parameter.
4TemperatureET141:Passenger
compartment
blowerRUNNING
or
STORED
depending on user
requestIf there is a fault, refer to the
fault finding procedure
for this status.
ACREG X84 1.1
Edition 2

62B - 40
CLIMATE CONTROL
Fault finding – Conformity check62B
V3 MR-372-J84-62B000$090.mif
Vdiag No.: 44
MAIN SCREEN
NOTESOnly carry out this conformity check after a full check with the diagnostic tool (fault
reading and configuration checks).
Test conditions: engine off, ignition on (forced 12 V After ignition).
Air conditioning off (air conditioning compressor not triggered).
Special note:
The various conformity checks for the air conditioning function are explained in the
Introduction section.
Note:
This page lists the statuses and parameters provided by the climate control computer
but which are not associated with the four sub-functions given in the conformity check
(PASSENGER COMPARTMENT VENTILATION, COLD LOOP, USER SELECTION
and HEATING sub-functions).
Order FunctionParameter or Status
checked or Action Display and Notes Fault finding
1Electrical
suppliesPR092:Battery voltage10.5 < X < 14.4 VIn the event of a fault, see
the interpretation of this
parameter
ET007:+ after ignition
computer feedABSENT: Ignition off.
PRESENT: Ignition on.In the event of a fault, refer
to the interpretation of
this status.
ET002:+ 12 V side
lightsABSENT: Side lights
off.
PRESENT: Side lights
on.In the event of a fault,
consult the interpretation
of this status (see 87B,
Passenger compartment
connection unit).
PR122:Night-time
lighting level6% = minimum lighting
level.
99% = maximum
lighting level.
(side lights off: 102%)In the event of a fault, refer
to the interpretation of
parameter PR111 Lighting
dimmer voltage (see 83A,
Instrument panel).
ACREG X84 1.1
Edition 2