2751478 - E3030 HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING - Description

Description

In the case of poor visibility, it is possible to activate demisting of the rear window and the door mirrors.

The heating resistances for these components absorb a considerable amount of energy and they are therefore checked and deactivated after a certain period: the defrosting is timed, according to the following logic, managed by the body computer node:

  • ignition ON (INT/A);
  • activation signal from the relevant button located in the control panel.
In these circumstances the resistances remain supplied for a maximum of 20 minutes, then the power supply is cut off.

The power supply is also cut off under the following conditions:

  • ignition in OFF position;
  • deactivation signal from the relevant button;
  • battery voltage below 8.5 V
  • after the first 10 minutes operation, if the engine speed is below 1000 rpm.
When the demister is on, a warning light in the instrument panel is activated.