2753550 - E6020 AIR CONDITIONING - Functional description (Manual Air Conditioning)

Functional description

The body computer node M001, from pin 9 connector C, manages the operation of the relay T08, which provides the direct battery supply to the electric motor of the fan N085. The relay, excluded during engine starting, is always energised, as it is connected directly to earth C011 from pin 49 connector D of the engine compartment junction unit B001. From connector B, the selector H080 sets the selected speed for the fan N085. The selector supplies the reference earth C016 to the motor N085 through the resistive divider O030. Only at maximum speed, the fan motor N085 is connected directly to earth C016. From connector A pin 2, the selector H080 sends the request to switch on the compressor to the electronic thermostat N086. The system can be activated by setting at least the first speed on the fan N085. An LED contained in the selector comes on, indicating that the air conditioning is on. From pin 2, the electronic thermostat N086 sends the engine control unit the request to switch on the compressor See E6021 COMPRESSOR ENGAGEMENT . From pin 9 connector L, the body computer node supplies the internal lights G045 (connectors A and B), with the side lights on (for further details See E2010 SIDE LIGHTS / NO. PLATE LIGHTS ).

The junction D001 is housed, in the interior compartment, at the bottom of the front right pillar, near the door cable pass, passenger side.