2010 RENAULT SCENIC heating

62A - 23
AIR CONDITIONING
Fault finding - Conformity check62A
V4
Manual air conditioning
and
Climate control
Subsystem: heating (continued 1)
Computer
(signal generator)Parameter or status
checked or actionDisplay and Notes Fault finding
UCHPR001:Battery voltage.10.5 < X < 14.4 volts.If there is a fault, refer to the
fault finding procedure
for this parameter. If the
fault is still present, carry
out a fault finding test on
the charge circuit.
PR002:Exterior
temperature.X = exterior temperature
± 5 ˚C
(invalid value: 215 ˚C).If there is a fault, refer to the
fault finding procedure
for this parameter.
ET025:Retractable roof.CLOSED or NOT CLOSED
ABSENT if the vehicle does
not have one.If there is a fault, refer to the
fault finding procedure
for this status.
ET091:Engine running:NO
NOTE: This status is
displayed via the UCH but it
is generated by the injection
computer.If there is a fault, refer to the
fault finding procedure
for this status.
(Injection Technical Note).
ET015:Passenger
compartment
blower.INACTIVE
(according to test
conditions: see Notes).If there is a fault, refer to the
fault finding procedure
for this status.
NOTE: This status is only
operative for manual air
conditioning (and heater
versions without air
conditioning).
ET026:Heated rear
screen switch.INACTIVE
(Inhibited with engine
stopped).If there is a fault, refer to the
fault finding procedure
for this status.
ET031:Fast idle request
for RCH.INACTIVE
(Inhibited with engine
stopped).If there is a fault, refer to the
fault finding procedure
for this status.
ET017:Number RCH
required.0, 1, 2 or 3 for Mégane
saloons and sport hatches
(1000 watt RCH).
0, 1, 2, 3, 4 or 5 for Mégane
Scénics (1800 watt RCH).
(according to heat
requirement).If there is a fault, refer to the
fault finding procedure
for this status.
CLIM X84 1.1
Edition 2
MR-372-J84-62A000$060.mif

62A - 24
AIR CONDITIONING
Fault finding - Conformity check62A
V4
Manual air conditioning
and
Climate control
Subsystem: heating (continued 2)
Computer
(signal generator)Parameter or status
checked or actionDisplay and Notes Fault finding
UCH
(continued)ET018:Number RCH
authorised by
alternator.0
(Inhibited with engine
stopped).If there is a fault, refer to the
fault finding procedure
for this status.
ET019:Number RCH
authorised by
injection.0
(Inhibited with engine
stopped).If there is a fault, refer to the
fault finding procedure
for this status.
ET020:Number RCH
actuated.0
(Inhibited with engine
stopped).If there is a fault, refer to the
fault finding procedure
for this status.
ET021:RCH no. 1 control
relay.INACTIVE
(Inhibited with engine
stopped).If there is a fault, refer to the
fault finding procedure
for this status.
ET022:RCH no. 2 control
relay.INACTIVE
(Inhibited with engine
stopped).If there is a fault, refer to the
fault finding procedure
for this status.
ET023:RCH no. 3 control
relay (Mégane
Scénic and
Scénic 4x4 only).INACTIVE
(Inhibited with engine
stopped).If there is a fault, refer to the
fault finding procedure
for this status.
NOTE: This status is
inoperative for Mégane
saloons and Mégane sport
hatches.
AC016:RCH no. 1 relay. Commands for testing the
operation of the RCH
(passenger compartment
air heating resistors). The
number of RCH stages
switched on depends on the
number of relays actuated.
NOTE: RCH no. 3 relay is
only fitted to Mégane
Scénics.If there is a fault, refer to the
fault finding procedure
for these controls.
NOTE: To find the relays
actuated/number of RCH
engaged correlation, refer
to the "general operation"
section of the UCH
Technical Note. AC017:RCH no. 2 relay.
AC018:RCH no. 3 relay
(Mégane Scénic
only).
CLIM X84 1.1
Edition 2
MR-372-J84-62A000$060.mif

62A - 25
AIR CONDITIONING
Fault finding - Conformity check62A
V4
Manual air conditioning
and
Climate control
Subsystem: heating (continued 3)
Computer
(signal generator)Parameter or status
checked or actionDisplay and Notes Fault finding
InjectionET024:Set number of
RCH.NO
NOTE: According to the
injection's requirements:
power requirement, torque
reduction, etc., the injection
computer sets the number
of RCH stages switched on
(no more, no less).If there is a fault, refer to the
fault finding procedure
for this status.
PR064:Coolant
temperature.X = engine coolant
temperature.If there is a fault, refer to the
fault finding procedure
for this parameter.
Protection and
Switching UnitPR002:Alternator charge
signal99 %, engine stopped.If there is a fault, refer to the
fault finding procedure
for this parameter.
AC011:Heated rear
screen.Command for testing the
operation of the rear screen
heating.If there is a fault, consult the
fault finding procedure
for this command.
NOTE: The UPC cannot
test the heated rear screen
control circuit; this
command is the only way to
test its operation.
CLIM X84 1.1
Edition 2
MR-372-J84-62A000$060.mif

62A - 35
AIR CONDITIONING
Fault finding - Conformity check62A
V4
Manual air conditioning
and
Climate control
Subsystem: heating
NOTESOnly carry out this conformity check after a full check with the diagnostic tool (fault
reading and configuration checks).
Test conditions: engine at idle speed,
AIR CONDITIONING OPERATING (air
conditioning compressor engaged).
NOTE: The interpretation of the statuses, parameters and controls listed in this check
is explained in the Technical Notes relating to the computer which generates the signal
(see the Introduction section).
Computer
(signal generator)Parameter or status
checked or actionDisplay and Notes Fault finding
Climate controlET086:Heated rear
screen: manual
mode.ACTIVE: De-icing button at
the bottom of the control
panel pressed.
INACTIVE otherwise.If there is a fault, refer to the
fault finding procedure
for this status.
ET085:Heated rear
screen: auto
mode.ACTIVE: De-icing button at
the top of the control panel
pressed ("See clear"
function).
INACTIVE otherwise.If there is a fault, refer to the
fault finding procedure
for this status.
PR121:Blown air
temperature
setpoint.0 < X < 80 ˚C.If there is a fault, refer to the
fault finding procedure
for this parameter.
PR001:Interior
temperature.X = interior temperature
± 5 ˚C
(invalid value: 87.5 ˚C).If there is a fault, refer to the
fault finding procedure
for this parameter.
PR012:Mixing flap
position.0% = Max. cold position
(15 ˚C)
100% = Max. warm position
(27 ˚C)If there is a fault, refer to the
fault finding procedure
for this parameter.
ET141:Passenger
compartment
blower.RUNNING.
(according to test
conditions: see Notes).If there is a fault, refer to the
fault finding procedure
for this status.
NOTE: This status is only
operative for climate
control systems.
CLIM X84 1.1
Edition 2
MR-372-J84-62A000$060.mif

62A - 36
AIR CONDITIONING
Fault finding - Conformity check62A
V4
Manual air conditioning
and
Climate control
Subsystem: heating (continued 1)
Computer
(signal generator)Parameter or status
checked or actionDisplay and Notes Fault finding
UCHPR001:Battery voltage.12.5 < X < 14.4 volts.If there is a fault, refer to the
fault finding procedure
for this parameter. If the
fault is still present, carry
out fault finding on the
charge circuit.
PR002:Exterior
temperature.X = exterior temperature
± 5˚C
(invalid value: 215 ˚C).If there is a fault, refer to the
fault finding procedure
for this parameter.
ET025:Retractable roof.CLOSED or NOT CLOSED
ABSENT if the vehicle does
not have one.If there is a fault, refer to the
fault finding procedure
for this status.
ET091:Engine running:YES
NOTE: This status is
displayed by the UCH but it
is generated by the injection
computer.If there is a fault, refer to the
fault finding procedure
for this status.
(Injection Technical Note).
ET015:Passenger
compartment
blower.ACTIVE
(according to test
conditions: see Notes).If there is a fault, refer to the
fault finding procedure
for this status.
NOTE: This status is only
operative for manual air
conditioning(and heater
versions without air
conditioning).
ET026:Heated rear
screen switch.ACTIVE if the heated rear
screen is operating.
INACTIVE otherwise.If there is a fault, refer to the
fault finding procedure
for this status.
ET031:Fast idle request
for RCH.ACTIVE if the RCH are
operating.
INACTIVE otherwise.If there is a fault, refer to the
fault finding procedure
for this status.
ET017:Number RCH
required.0, 1, 2 or 3 for Mégane
saloons and sport hatches
(1000 watt RCH).
0, 1, 2, 3, 4 or 5 for Mégane
Scénics (1800 watt RCH).
(according to heat
requirement).If there is a fault, refer to the
fault finding procedure
for this status.
CLIM X84 1.1
Edition 2
MR-372-J84-62A000$060.mif

62A - 37
AIR CONDITIONING
Fault finding - Conformity check62A
V4
Manual air conditioning
and
Climate control
Subsystem: heating (continued 2)
Computer
(signal generator)Parameter or status
checked or actionDisplay and Notes Fault finding
UCH
(continued 1)ET018:Number RCH
authorised by
alternator.0, 1, 2 or 3 for Mégane
saloons and sport hatches
(1000 watt RCH).
0, 1, 2, 3, 4 or 5 for Mégane
Scénics (1800 watt RCH).
(depending on the electrical
availability).If there is a fault, refer to the
fault finding procedure
for this status.
ET019:Number RCH
authorised by
injection.0, 1, 2 or 3 for Mégane
saloons and sport hatches
(1000 watt RCH).
0, 1, 2, 3, 4 or 5 for Mégane
Scénics (1800 watt RCH).
(according to the injection's
requirements: power
requirement, torque
reduction, etc.).If there is a fault, refer to the
fault finding procedure
for this status.
ET020:Number RCH
actuated.0, 1, 2 or 3 for Mégane
saloons and sport hatches
(1000 watt RCH).
0, 1, 2, 3, 4 or 5 for Mégane
Scénics (1800 watt RCH).
(depending on statuses
"ET017, ET018 and
ET019").If there is a fault, refer to the
fault finding procedure
for this status.
ET021:RCH no. 1 control
relay.ACTIVE or INACTIVE
(depending on status
ET020).If there is a fault, refer to the
fault finding procedure
for this status.
ET022:RCH no. 2 control
relay.ACTIVE or INACTIVE
(depending on status
ET020).If there is a fault, refer to the
fault finding procedure
for this status.
ET023:RCH no. 3 control
relay (Mégane
Scénic and
Scénic 4x4 only).ACTIVE or INACTIVE
(depending on status
ET020).If there is a fault, refer to the
fault finding procedure
for this status.
NOTE: This status is
inoperative for Mégane
saloons and Mégane sport
hatches.
CLIM X84 1.1
Edition 2
MR-372-J84-62A000$060.mif

62A - 38
AIR CONDITIONING
Fault finding - Conformity check62A
V4
Manual air conditioning
and
Climate control
Subsystem: heating (continued 3)
Computer
(signal generator)Parameter or status
checked or actionDisplay and Notes Fault finding
UCH
(continued 2)AC016:RCH no. 1 relay. Commands for testing the
operation of the RCH
(passenger compartment
air heating resistors). The
number of RCH stages
switched on depends on the
number of relays actuated.
NOTE: RCH no. 3 relay is
only fitted to Mégane
Scénics.If there is a fault, refer to the
fault finding procedure
for these controls.
NOTE: To find the relays
actuated/number of RCH
engaged correlation, refer
to the "general operation"
section of the UCH
Technical Note. AC017:RCH no. 2 relay.
AC018:RCH no. 3 relay.
(Mégane Scénics
only)
InjectionET024:Set number of
RCH.YES or NO
NOTE: According to the
injection's requirements:
power requirement, torque
reduction, etc., the injection
computer sets the number
of RCH stages switched on
(no more, no less).If there is a fault, refer to the
fault finding procedure
for this status.
PR064:Coolant
temperature.X = engine coolant
temperature.If there is a fault, refer to the
fault finding procedure
for this parameter.
Protection and
Switching UnitPR002:alternator charge
signal0 < X <100 %
–0 % = zero electrical
consumption.
–100 % = maximum
electrical consumption.If there is a fault, refer to the
fault finding procedure
for this parameter.
AC011:Heated rear
screen.Command for testing the
operation of the rear screen
heating.If there is a fault, consult the
fault finding procedure
for this command.
NOTE: The UPC cannot
test the heated rear screen
control circuit; this
command is the only way to
test its operation.
CLIM X84 1.1
Edition 2
MR-372-J84-62A000$060.mif

62A-43
AIR CONDITIONING
Fault finding - Customer complaints62A
V4 MR-372-J84-62A000$070.mif
Manual air conditioning
and
Climate controlAIR CONDITIONING
Fault finding - Customer complaints
NOTESSpecial notes:
This section gives the complete list of possible customer complaints (the fault finding
charts are to be found in sections 62A, 62B and 62C: see below).
COMMUNICATION FAULT (only for regulated versions) Section 62B
NO DIALOGUE WITH THE COMPUTER ALP 1
AIR DISTRIBUTION PROBLEMSections 62B and 62C
AIR DISTRIBUTION PROBLEM ALP 2
AIR FLOW FAULT ALP 3
INEFFICIENT WINDSCREEN DEMISTING ALP 4
NO PASSENGER COMPARTMENT VENTILATION ALP 5
AIR CONDITIONING FAULTSection 62A
NO HEATING OR INADEQUATE HEATING ALP 6
EXCESSIVE HEATING ALP 7
NO COLD AIR ALP 8
TOO MUCH COLD AIR ALP 9
INEFFICIENT REAR SCREEN DE-ICING OR DEMISTING ALP 10
PASSENGER COMPARTMENT ODOURSSections 62B and 62C
UNPLEASANT ODOURS IN PASSENGER COMPARTMENT ALP 11
CLIM X84 1.1
Edition 2