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WIRING-DIAGRAMS

Fiat MULTIPLA 1.9 JTD 8V fino a 05/99 – AIR CONDITIONING – – Air Conditioner – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

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Fiat MULTIPLA 1.9 JTD 8V fino a 05/99 – AIR CONDITIONING – – Air Conditioner – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION
Wiring diagram
AIR CONDITIONING - Wiring diagram Fiat MULTIPLA 1.9 JTD 8V fino a 05/99Unlock Lifetime Access for This Car.

Components
Component codeNameAssembly reference
B1Junction unitB5MAXI FUSE boxB27Fuse power supply ignition operated excl ignition (INT/A)-
B27Fuse power supply ignition operated excl ignition (INT/A)-
C10Left front earth-
C10Left front earth-
D1Front/facia junction-
D8Air conditioning heater front coupling-
D8Air conditioning heater front coupling-
D21Dashboard/air conditioning-heater connection-
D21Dashboard/air conditioning-heater connection-
D030Front door junction left-
D030Front door junction left-
D31Front door junction right-
D31Front door junction right-
E50Instrument panelG45Air conditioner/heater control lightG45Air conditioner/heater control lightG45Air conditioner/heater control lightG45Air conditioner/heater control lightH1Ignition switchH80Climate control system controlsH081Climate control fan control ( AIR CONDITIONING )H081Climate control fan control ( AIR CONDITIONING )H081Climate control fan control ( AIR CONDITIONING )H82Climate control temperature controlI65MAX-DEF function switchI65MAX-DEF function switchJ20Air conditioning compressor activation relay-
J35Interior compartment air electric fan relay-
J36Additional heater relay-
K87Treated air sensorM70Climate control system control unitM72Fan speed transformerM72Fan speed transformerN81Air mixing actuatorN82Air intake actuatorN85Passenger compartment ventilation fanN85Passenger compartment ventilation fanO30Air fan adjustment resistanceO30Air fan adjustment resistanceO30Air fan adjustment resistanceO30Air fan adjustment resistanceR10Multiple tester connection-
Location of components
AIR CONDITIONING - Location of components Fiat MULTIPLA 1.9 JTD 8V fino a 05/99Unlock Lifetime Access for This Car.

Components
Component codeNameAssembly reference
B1Junction unitB5MAXI FUSE boxB27Fuse power supply ignition operated excl ignition (INT/A)-
B27Fuse power supply ignition operated excl ignition (INT/A)-
C10Left front earth-
C10Left front earth-
D1Front/facia junction-
D8Air conditioning heater front coupling-
D8Air conditioning heater front coupling-
D21Dashboard/air conditioning-heater connection-
D21Dashboard/air conditioning-heater connection-
D030Front door junction left-
D030Front door junction left-
D31Front door junction right-
D31Front door junction right-
E50Instrument panelG45Air conditioner/heater control lightG45Air conditioner/heater control lightG45Air conditioner/heater control lightG45Air conditioner/heater control lightH1Ignition switchH80Climate control system controlsH081Climate control fan control ( AIR CONDITIONING )H081Climate control fan control ( AIR CONDITIONING )H081Climate control fan control ( AIR CONDITIONING )H82Climate control temperature controlI65MAX-DEF function switchI65MAX-DEF function switchJ20Air conditioning compressor activation relay-
J35Interior compartment air electric fan relay-
J36Additional heater relay-
K87Treated air sensorM70Climate control system control unitM72Fan speed transformerM72Fan speed transformerN81Air mixing actuatorN82Air intake actuatorN85Passenger compartment ventilation fanN85Passenger compartment ventilation fanO30Air fan adjustment resistanceO30Air fan adjustment resistanceO30Air fan adjustment resistanceO30Air fan adjustment resistanceR10Multiple tester connection-
DescriptionThe vehicle climate control system involves a duct/distributor unit with a heater. The air conditioning system includes the heater and has the function of producing cold, dehumidified air by switching on the compressor and the refrigeration systemThe climate control is operated by acting on the three knobs in the dashboard:the left knob mechanically controls the mixture flap between hot and cold air;the right knob, mechanically operated via a cable, controls the opening of the flaps which regulate the distribution of air flows;the centre knob electrically controls the air ventilation at four different speeds; two versions are available: a three speed and a four speed one. The air recirculation button and the button for switching on the air conditioning compressor at located in the lower part of the control pane. ( 2889470SeeE6021COMPRESSOR ENGAGEMENT ). For more details, 2888278see DESCRIPTION AND OPERATION:5040AIR CONDITIONING CASING AND COMPONENTSThe control panel is lit up when the side lights are on.The fan circuit is protected by a specific fuse, in the junction unit, controlled by the passenger compartment air fan relay, located in the duct/distributor uni.The fan only operates when the ignition is switched ON.
Functional description The relay J35 controls the passenger compartment air fan circuit The supply for the relay contact arrives from the battery through the line for the maxifuse J/B1 of B5 protected by fuse F12 for the junction unit B1, whilst the energizing of the coil is controlled by the ignition (INT/A) through the line protected by fuse B27. The relay J35 supplies the control knob H81: this controls the fan at the different speeds via the regulator O30. The voltage signal varies according to the position of the knob and through the resistance of the regulator O30 determining four different voltage signals for the fan N85 which sends outside or recirculation air to he duct/distributor unit at 4 different speeds. The outside/recirculation air intake flap motor N82 is operated by a special button, located in the control panel H80: the operation of the button sends an earth signal and a supply controlled by the ignition (INT/A) protected by fuse B27 which are reversed to reverse the direction of rotation of the motor. The control panel has ideograms which are lit up, when the side lights are on, by lights G45, supplied by the line protected by fuse F3 for the junction unit B1 ( See E2010 SIDE LIGHTS / NO. PLATE LIGHTS ).

Junction unit



B001A



B001A



B001C



B001C



B001D



B001E



B001E



B001E



B001F



B001G



B001H



B001H



B001H



B001I



B001I



B001I



B001J



B001J



B001B



B001B



B001B



B001B



B001B



B001B



B001C



B001C



B001C



B001C



B001C



B001C



B001C



B001D



B001D



B001D



B001D



B001D



B001D



B001D



B001E



B001E



B001E



B001G



B001G



B001G



B001H



B001H



B001H



B001H



B001H



B001I



B001I



B001J



B001J



B001B



B001B



B001B



B001C



B001C



B001C



B001D



B001D



B001D



B001H



B001H



B001H



B001I



B001J



Junction unit



B001A



B001A



B001C



B001C



B001D



B001E



B001E



B001E



B001F



B001G



B001H



B001H



B001H



B001I



B001I



B001I



B001J



B001J



B001B



B001B



B001B



B001B



B001B



B001B



B001C



B001C



B001C



B001C



B001C



B001C



B001C



B001D



B001D



B001D



B001D



B001D



B001D



B001D



B001E



B001E



B001E



B001G



B001G



B001G



B001H



B001H



B001H



B001H



B001H



B001I



B001I



B001J



B001J



B001B



B001B



B001B



B001C



B001C



B001C



B001D



B001D



B001D



B001H



B001H



B001H



B001I



B001J



Fuse power supply ignition operated excl ignition (INT/A)



B027



B027



B027



B027



Left front earth



C010A



C010B



C010C



C010C



C010D



C010D



C010A



C010A



C010A



C010A



C010A



C010A



C010A



C010A



Front/facia junction



D001A



D001A



D001A



D001A



D001A



D001A



D001A



D001A



D001A



D001A



D001A



D001A



D001B



D001B



D001B



D001B



D001B



D001B



D001B



D001B



D001B



D001B



D001B



D001C



D001A



D001A



D001A



D001A



D001A



D001A



D001A



D001A



D001C



D001C



D001C



D001C



D001C



D001C



D001C



D001C



D001A



D001C



D001C



Air conditioning heater front coupling



D008



D008



D008



D008



D008



D008



D008



D008



D008



D008



D008



D008



D008



D008



D008



D008



D008



D008



Dashboard/air conditioning-heater connection



D021



D21



D021



D021



D021



D021



Front door junction left



D030



D030



D030



D030



D30



D030



D030



D030



D030



D030



D030



D030



D030



D030



D030



D030



D030



D030



D030



Front door junction right



D031



D031



D031



D031



D031



D031



D031



D031



D31



D031



D31



D031



D031



D031



D031



D031



D031



D031



D031



D031



D031



Instrument panel



E050A



E050A



E050A



E050A



E050A



E050B



E050B



E050B



E050B



E050B



E050B



E050B



E050C



E050C



E050A



E050B



E050C



E050C



E050A



E050C



Instrument panel



E050A



E050A



E050A



E050A



E050A



E050B



E050B



E050B



E050B



E050B



E050B



E050B



E050C



E050C



E050A



E050B



E050C



E050C



E050A



E050C



Instrument panel



E050A



E050A



E050A



E050A



E050A



E050B



E050B



E050B



E050B



E050B



E050B



E050B



E050C



E050C



E050A



E050B



E050C



E050C



E050A



E050C



Instrument panel



E050A



E050A



E050A



E050A



E050A



E050B



E050B



E050B



E050B



E050B



E050B



E050B



E050C



E050C



E050A



E050B



E050C



E050C



E050A



E050C



Instrument panel



E050A



E050A



E050A



E050A



E050A



E050B



E050B



E050B



E050B



E050B



E050B



E050B



E050C



E050C



E050A



E050B



E050C



E050C



E050A



E050C



Instrument panel



E050A



E050A



E050A



E050A



E050A



E050B



E050B



E050B



E050B



E050B



E050B



E050B



E050C



E050C



E050A



E050B



E050C



E050C



E050A



E050C



Instrument panel



E050A



E050A



E050A



E050A



E050A



E050B



E050B



E050B



E050B



E050B



E050B



E050B



E050C



E050C



E050A



E050B



E050C



E050C



E050A



E050C



Instrument panel



E050A



E050A



E050A



E050A



E050A



E050B



E050B



E050B



E050B



E050B



E050B



E050B



E050C



E050C



E050A



E050B



E050C



E050C



E050A



E050C



Interior compartment air electric fan relay



J035



J035



J035



J035



Additional heater relay



J036



J036



Treated air sensor



K087



Treated air sensor



K087



Treated air sensor



K087



Treated air sensor



K087



Treated air sensor



K087



Treated air sensor



K087



Treated air sensor



K087



Treated air sensor



K087


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