Warning signal connection diagram: 1 - relay and fuse box in the engine compartment; 2 - fuse box in the passenger compartment; 3 - control unit of the car anti-theft alarm system; 4 — key insertion sensor; 5 - instrument cluster; 6 — seat belt warning light; 7 - warning signal; 8 - limit switch at the left front door; 9 — seat belt sensor; 10 — airbag control unit