Headlamp Leveling

In vehicles manufactured for Mexico and Latin America a headlamp leveling system is provided on the vehicle. The headlamp leveling system includes unique upper front combination lamp units each with an integral headlamp leveling actuator motor, and push button headlamp leveling switches integral to the IPC in the instrument panel. The headlamp leveling system allows the headlamp low beams to be adjusted to one of four vertical positions to compensate for changes in inclination caused by the loading of the vehicle suspension. The leveling motors are mechanically connected through an integral pushrod to the adjustable headlamp reflector.

Each time a headlamp leveling switch push button is depressed the circuitry of the switch provides an up or down input to the IPC. The IPC then provides a voltage output to the electronic controller integral to each headlamp leveling motor. The electronic controller of the headlamp leveling motors move the headlamp reflectors to the selected position based upon the voltage input received from the IPC. The headlamp leveling motors send the appropriate information back to the IPC and the IPC displays the 0  , 1  , 2  or 3  to indicate the selected position in the IPC display. The system logic will only allow the headlamp leveling system to operate while the ignition switch is in the ON position and the low beam headlamps are turned ON.