Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Fiat Multipla Factory Service Manual (1998-2010)19 · Wiring diagrams and electrical functions
19 · Electrical

HEATER - Description

Make
Fiat
Model
Multipla Factory Service Manual
Year
1998–2010
Section
Climate control system › HEATER - Description
Wiring diagrams and electrical functionsHEATER - Description

HEATER - Description

06/99 to 03/02, up to 05/99 · Heater

Description

The vehicle climate control system involves a duct/distributor unit with a heater, controlled via 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 operation of the fan at different speeds is achieved through a resistive divider, protected by a special thermal fuse to prevent overheating.

There is also a cursor on the control panel, located under the knobs, which mechanically regulates the "recirculation" function via a cable.

For more details, see DESCRIPTION AND OPERATION: 5020 HEATER

The 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.

04/02 to 08/03, from 06/04, from 09/03

Description

The vehicle climate control system involves a duct/distributor unit with a heater, controlled via 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 ventilation of the air at four different speeds; two versions are available: one with three speeds and one with four speeds;

The operation of the fan at different speeds is achieved through a resistive divider, protected by a special thermal fuse to prevent overheating.

There is also a cursor on the control panel, located under the knobs, which mechanically regulates the 'recirculation' function via a cable.

For more details, see DESCRIPTION AND OPERATION: 5020 HEATER

The control panel is lit up when the side lights are on.

The fan circuit is protected by a specific fuse, in the junction unit under the dashboard, controlled by the passenger compartment air fan relay, located in the duct/distributor unit.

The fan only operates when the ignition is switched ON.

Parts & tools for this job For 1998 Fiat Multipla

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