Headlamp Leveling Motor - Description - Export

DESCRIPTION





The headlamp leveling motor (4) is located on the rear upper surface of each front lamp unit on vehicles equipped with the headlamp leveling system, which is available only in certain markets where it is required equipment. There is a plunger (3) that moves the headlamp, an adjustment screw (2) that allows for baseline adjustment, and a connector (1) for connection to the vehicles electrical system.

Within the motor housing is a 12-volt Direct Current (DC) servo motor, an electronic controller board that includes the motor logic circuits, and an integral screw-drive transmission. The motor cannot be repaired and, if ineffective or damaged, the entire motor unit must be replaced.

The Headlamp Leveling System allows the driver to adjust the headlamp beam pattern from the interior of the vehicle to compensate for passenger or cargo load. Only the vertical axis of the headlamp beam can be adjusted.

A headlamp leveling switch is located on the instrument panel Accessory Switch Bank Module (ASBM), and controls the headlamp leveling motors found on the headlamp unit. The headlamp leveling switch has four settings 0-3, 0 being the highest, 3 being the lowest headlight beam vertical setting.

When performing a headlamp beam pattern alignment on a vehicle equipped with headlamp leveling, be certain the headlamp leveling switch is in the "0" position before starting. Failure to do so will result in an incorrect headlamp unit alignment.