1. Body harness: It walks from the left side of the cab against the floor, connecting the fuel tank sensor and the rear tail lamp.
2. Engine harness: It connects various sensors and actuators on the engine and surrounds the engine.
3. Instrument panel harness: it is connected with the body or chassis harness, and it travels along the pipe beam to connect various electrical components on the instrument panel, such as the combination instrument, air conditioner switch, radio player, cigarette lighter, etc.
4. Door harness: connect all electrical parts on the inner door panel, such as central lock, window regulator, loudspeaker, etc.
5. Front wall harness: from the cab, along the fender and front bumper frame, connect the electrical parts of the front wall, such as the side turn signal lamp, front combination lamp, horn, electronic fan, etc.
6. The car wire harness is generally designed as H type and E type, and the simpler one is also designed as T type.