Patent ID: 7440828

Claim:
A method of checking operation of an adaptive front lighting system having a function of redirecting headlamp illumination in both a horizontal direction and a vertical direction in accordance with steering angle, traveling speed and incline of a vehicle, the method comprising the steps of: storing an operation checking program in advance in an electronic control unit installed in the vehicle, the program being prepared to activate the adapted front lighting system to perform the function thereof under the control of the electronic control unit such that the headlamp illumination is redirected leftward, rightward, downward and upward in a predetermined sequence; while the vehicle remains stationary at an inspection zone of an automobile production and assembly line, energizing the electronic control unit with electric power supplied from a battery installed in the vehicle and switching on headlamps of the vehicle; then, causing the operation checking program to run, thereby activating the adaptive front lighting system; and during a run-time of the operation checking program, performing an inspection to determine whether the headlamp illumination has been redirected leftward, rightward, downward and upward in the predetermined sequence specified in accordance with the operation checking program.