The passenger compartment air fan N085 receives a direct battery supply, at pin 1, via the line operated by relay switch T08 (except during starting, "INT/A") and protected by fuse F08, both located in the engine compartment junction unit B001.

The coil for the passenger compartment air fan relay switch J035 is connected firmly on one side (pin 2) to the air conditioning unit earth C016 and, on the other side (pin 8), it receives an INT ignition-operated supply from the line protected by fuse F51 of the Body Computer M001 (pin 18 of connector C).

With the key to MAR-ON, the contact for J035 is permanently closed in the second position (pin 4), connecting pin 1 of the fan control unit H081 to earth C016.

This allows the traditional adjustment of the fan N085 speed via the fan control H081 which, via the adjustment resistances O030, allows the fan motor to be earthed via different resistance values, thereby allow the adjustment of the speed.

With the key to STOP or extracted, on the other hand, no current passes through the passenger compartment air fan relay switch J035 coil and it remains in the first position (pin 5).

In this way pin 2 of the adjustment resistances assembly O030 remains directly earthed, with the passenger compartment air fan earthed via the resistance at the second speed.

The additional heater relay switch J036 can be activated by a request coming from pin F of the additional heater control unit M075.

See E6015

The closure of the circuit produces a direct power supply for the passenger compartment air fan, causing it to work at the second speed with the key at STOP or extracted.

This supply line for fan N085 is controlled by the additional heater control unit M075. It receives a direct battery supply and is protected by fuse F05 of the engine compartment junction unit B001 (pin A of connector D) and fuse F27 of the additional system fuse box B046.