2009 RENAULT SCENIC Air Conditioning Climate Control Workshop Manual

62B-17
CLIMATE CONTROL
Fault finding – Interpretation of faults62B
V3 MR-372-J84-62B000$060.mif
Vdiag No.: 44
DF010
CONTINUED
With the climate control computer connector connected and the ignition on ("forced" + after ignition: see
Introduction) check that there is a 12 V supply on track 2 of the mixing motor connector. If the supply is not
present and if no faulty connections are detected during the continuity checks: contact your Techline.
With the connector disconnected, check the resistance value of the mixer motor by measuring between:
track 2 and track 1 of the mixing motor connector,
track 2 and track 3 of the mixing motor connector,
track 2 and track 4 of the mixing motor connector,
track 2 and track 6 of the mixing motor connector.
For the four checks, a value of 100 ΩΩ Ω Ω
± 5 ΩΩ Ω Ω
at 20˚C should be obtained. Replace the mixer motor if this is not
the case.
If the fault is still present with the mixing motor removed but electrically connected, carry out a motor command
using the temperature buttons on the control panel: switch the temperature setting to maximum hot position
"27˚" (a value of 100%) then switch the temperature setting to maximum cold position "15˚" (a value of 0%).
The motor should switch from one direction to the other.
If the connections checked previously are correct but the motor does not switch during the commands: replace
the mixing motor.
If the commands have been performed correctly, check that the mixing flap motor is not jammed by trying to
move the mechanism.
Repair if necessary.
If the fault is still present, replace the mixing motor.
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-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-19
CLIMATE CONTROL
Fault finding – Interpretation of faults62B
V3 MR-372-J84-62B000$060.mif
Vdiag No.: 44
DF012
CONTINUED
With the connector disconnected, check the resistance value of the distribution motor by measuring between:
track 2 and track 1 of the distribution motor connector,
track 2 and track 3 of the distribution motor connector,
track 2 and track 4 of the distribution motor connector,
track 2 and track 6 of the distribution motor connector.
For the four checks, a value of 100 ΩΩ Ω Ω
± 5 ΩΩ Ω Ω
at20˚C should be obtained. Replace the distribution motor if this
is not the case.
If the fault is still present with the distribution motor dismantled and connected, carry out a motor command
using the distribution buttons on the control panel: switch the distribution to demisting position (value 100%)
then switch the distribution setting to air vent position (value 0%). The motor should switch from one direction
to the other.
If the connections checked previously are correct but the motor does not switch during the commands: replace
the distribution motor.
If the commands have been performed correctly, check that the distribution motor flap is not jammed by trying
to move the mechanism.
Repair if necessary.
If the fault is still present, replace the distribution motor.
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-20
CLIMATE CONTROL
Fault finding – Interpretation of faults62B
V3 MR-372-J84-62B000$060.mif
Vdiag No.: 44
DF021
PRESENT
OR
STOREDRECIRCULATION MOTOR CIRCUIT
CO : Open circuit
CC.0 : 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:
–air conditioning panel lit and recirculation control pressed (select "recirculation" to
close the flap or "external air" to open the flap).
Special notes:
Climate control does not have automatic recirculation. However, in extreme
temperatures (above 35 ˚C) and when the air conditioning is switched on, the
recirculation flap sets itself to the recirculation position in order to warm up the
passenger compartment more quickly.
Check the connection and condition of the recirculation motor.
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 10 Track 6 of the recirculation motor
Computer connector B track 1 Track 5 of the recirculation motor
Check the resistance value of the recirculation motor by measuring between:
track 5 and track 6 of the recirculation motor connector. Replace the motor if the resistance is not: 35 ΩΩ Ω Ω
± 5 ΩΩ Ω Ω

at 20˚C.
If the fault is still present, remove the scuttle panel grille beneath the windscreen to look at the recirculation
flap. Run a recirculation command by pressing the air conditioning control panel button: the flap should close.
The flap should close during the command. During the command, check that the recirculation motor flap closes
without any stiff points and without jamming.
Repair if necessary.
If the fault is still present, replace the recirculation motor.
AFTER REPAIRClear the fault memory.
Follow the instructions to confirm repair.
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 - 23
CLIMATE CONTROL
Fault finding – Interpretation of statuses62B
V3 MR-372-J84-62B000$070.mif
Vdiag No.: 44
ET062
RECIRCULATION FLAP POSITION
NOTESSpecial notes:
Climate control does not have automatic recirculation. However, in extreme
temperatures (above 35 ˚C) and when the air conditioning is switched on, the
recirculation flap sets itself to the recirculation position in order to warm up the
passenger compartment more quickly.
This status specifies the position of the recirculation flap.
If the flap is in the external air position, the status displays: OPEN.
If the flap is in the recirculation position, the status displays: CLOSED.
If the status does not operate as shown, use the fault finding procedure for fault DF021 Recirculation motor
circuit.
AFTER REPAIRRepeat the conformity check from the start.
ACREG X84 1.1
Edition 2

62B - 24
CLIMATE CONTROL
Fault finding – Interpretation of statuses62B
V3 MR-372-J84-62B000$070.mif
Vdiag No.: 44
ET085
HEATED REAR SCREEN: AUTO MODE
NOTESNone.
This status specifies whether the heated rear screen is operated in automatic mode or not. This mode
corresponds to the SEE CLEAR function. This function switches on the heated rear screen, the heated door
mirrors, the air conditioning and the windscreen ventilation at high speed.
The heated rear screen will operate for as long as the SEE CLEAR function is requested (permanently
controlled).
This automatic mode is obtained by pressing the de-icing button at the top of the air conditioning control panel.
If the SEE CLEAR function is requested, the status should display: ACTIVE.
If the SEE CLEAR function is not requested, the status should display: INACTIVE.
If the status does not operate as shown, refer to ALP 10 in Section 62A Air conditioning.
AFTER REPAIRRepeat the conformity check from the start.
ACREG X84 1.1
Edition 2