When required, the climate control system ECU automatically activates
the cooling circuit and dehumidifies the air by operating the air
conditioner compressor.
For more details
see DESCRIPTION AND OPERATION: 5040 AIR CONDITIONING CASING
AND COMPONENTS
.
The compressor may also be deactivated by
the 4-stage pressure switch or the engine management unit according
to the engine management software, which is different for each engine
version (
see
DESCRIPTION AND OPERATION: 1056 PETROL INJECTION SYSTEM
)
The compressor supply circuit is controlled
by a specific relay, located in the engine bay close to the battery.The relay contact line is protected by a
special fuse located in the junction unit.