The scheme of switching on the heating of the front seats: – heaters of the left forward seat; 2 – the switch of a heater of the left forward seat with a control lamp of inclusion; 3 – the relay of inclusion of heaters of forward seats; 4 - ignition switch; 5 - mounting block; 6 – the switch of a heater of the right forward seat with a control lamp of inclusion; 7 – heaters of the right front seat; 8 - 16 A fuse; A - to power supplies.
Heaters are switched on by switches 2 and 6 (see fig.) (left and right seats respectively). The heaters have built-in thermostats for electric heating of the seat. The closure of the thermostat contacts occurs at the temperature of the seat surface (25±5) °C, and opening - when heated to a temperature (31±4) °C. The temperature difference between the closing and opening of the contacts of the built-in temperature controller must be at least 5°C..