Workshop Manuals Factory service & repair Alfa Romeo
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Alfa Romeo 147 Factory Service Manual (2000-2004)19 · Wiring diagrams and electrical functions
19 · Electrical

COMPRESSOR ENGAGEMENT - Description

Make
Alfa Romeo
Model
147 Factory Service Manual
Year
2000–2004
Section
Climate control system › COMPRESSOR ENGAGEMENT - Description
Wiring diagrams and electrical functionsCOMPRESSOR ENGAGEMENT - Description

COMPRESSOR ENGAGEMENT - Description

1.6 TS, 2.0 TS

Description

When required, the climate control system ECU automatically activates the cooling circuit and dehumidifies the air by operating the air conditioner compressor.

The appropriate button in the climate control control panel enables operation of the air cooling circuit; when the button is pressed the LED comes on.

The above button enables the operation of the air cooling circuit; the actual switching on of the compressor, however, also depends on the climate control system ECU operating strategy: for more details Characteristic of working principle 5040 AIR CONDITIONING CASING AND COMPONENTS.

The compressor can also be switched off by the intervention of the four stage pressure switch or by the engine control unit Characteristic of working principle 1056 PETROL INJECTION SYSTEM.

The compressor is controlled by means of a special relay located in the engine bay control unit. the supply line is protected by a specific fuse, again in the engine bay control unit.

1.9 JTD 8V, 1.9 JTD 16V

Description

When required, the climate control system ECU automatically activates the cooling circuit and dehumidifies the air by operating the air conditioner compressor.

The appropriate button in the climate control control panel enables operation of the air cooling circuit; when the button is pressed the LED comes on.

The above button enables the operation of the air cooling circuit; the actual switching on of the compressor, however, also depends on the climate control system ECU operating strategy: for more details Characteristic of working principle 5040 AIR CONDITIONING CASING AND COMPONENTS.

The compressor can also be switched off by the intervention of the four stage pressure switch or by the engine control unit Characteristic of working principle 1060 DIESEL FUEL INJECTION.

The compressor is controlled by means of a special relay located in the engine bay control unit. the supply line is protected by a specific fuse, again in the engine bay control unit.

3.2 V6 · GTA

Description

When required, the climate control system ECU automatically activates the cooling circuit and dehumidifies the air by operating the air conditioner compressor.

The appropriate button in the climate control control panel enables operation of the air cooling circuit; when the button is pressed the LED comes on.

The above button enables the operation of the air cooling circuit; the actual switching on of the compressor, however, also depends on the climate control system ECU operating strategy: for more details Characteristic of working principle 5040 AIR CONDITIONING CASING AND COMPONENTS.

The compressor can also be switched off by the intervention of the four stage pressure switch or by the engine control unit Characteristic of working principle 1056 PETROL INJECTION SYSTEM.

The compressor is controlled by means of a special relay located in the relay junction unit; the supply line is protected by a specific fuse in the engine compartment junction unit

Parts & tools for this job For 2000 Alfa Romeo 147

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