Workshop Manuals Factory service & repair Fiat
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Fiat Croma Factory Service Manual (2005-2010)19 · Wiring diagrams and electrical functions
19 · Electrical

Compressor engagement - description

Make
Fiat
Model
Croma Factory Service Manual
Year
2005–2010
Section
Climate control system › Compressor engagement - description
Wiring diagrams and electrical functionsCompressor engagement - description

COMPRESSOR ENGAGEMENT - DESCRIPTION

2.2

The special button (ice symbol) on the climate control system control unit switches on the air cooling and dehumidification circuit, activating the air conditioning compressor.

The above button enables operation of the air cooling circuit, but actual compressor activation is also dependent upon activation of:

- the linear sensor, located on the coolant circuit that locks air conditioner activation if coolant pressure is too low or high;

- the engine control unit that excludes compressor operation in accordance with engine management mode; e.g. in the case of high engine temperatures or high engine load (sudden acceleration).

For more details,

See descriptions 5040 AIR CONDITIONING CASING AND COMPONENTS

The compressor supply circuit is controlled by a specific relay and protected by a specific fuse both located in the engine compartment junction unit.

1.9 JTD 8v, 1.9 JTD 16v, 2.4 JTD 20v

The special button (ice symbol) on the climate control system (manual or automatic) control unit switches on the air cooling and dehumidification circuit, activating the air conditioning compressor.

The above button enables operation of the air cooling circuit, but actual compressor activation is also dependent upon activation of:

- the linear sensor, located on the coolant circuit that locks air conditioner activation if coolant pressure is too low or high;

- the engine control unit that excludes compressor operation in accordance with engine management mode; e.g. in the case of high engine temperatures or high engine load (sudden acceleration).

For more details,

See descriptions 5040 AIR CONDITIONING CASING AND COMPONENTS

The supply circuit for the compressor is controlled by a specific elay and protected by a special fuse, both located in the engine compartment junction unit.

1.8

The special button (ice symbol) on the climate control system control unit switches on the air cooling and dehumidification circuit, activating the air conditioning compressor.

The above button enables the operation of the air cooling circuit, but the actual compressor activation is also dependent upon the activation of:

- the linear sensor, located on the coolant circuit that locks the air conditioner activation if the coolant pressure is too low or high;

- the engine control unit that excludes the compressor operation in accordance with the engine management mode; e.g. in the case of high engine temperatures or high engine load (sudden acceleration).

For more details,

See descriptions 5040 AIR CONDITIONING CASING AND COMPONENTS

The compressor supply circuit is controlled by a specific relay and protected by a specific fuse both located in the engine compartment junction unit.

Parts & tools for this job For 2005 Fiat Croma

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