Headlamp Motor: Description and Operation

HEADLAMP LEVELING MOTOR - EXPORT

HEADLAMP LEVELING SYSTEM
The Remote 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 and controls the headlamp leveling motors/modules found on the headlamp modules. The Leveling switch has three settings 0-2, 0 being the lowest, 2 being the highest headlight beam vertical setting.

NOTE: 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 alignment.

Moving the headlamp leveling switch control knob will adjust the voltage (rheostat) sent to the headlamp leveling motors. This signals the headlamp leveling motors to move and adjust the vertical headlamp beam pattern accordingly. The headlamp switch must be "ON" in order for the leveling system to function. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

HEADLAMP LEVELING MOTOR
Vehicles equipped with the remote headlamp leveling system, utilize headlamp leveling motors. Two leveling motors are used per vehicle, one for each headlamp. These leveling motors are attached to the rear of the headlamp modules. They can be described as a small semi-square shaped module with a electrical connector attached to one side. Due to vehicle design these motors can only be serviced or accessed by removing the headlamp from the vehicle.

The headlamp leveling motors move the headlamp and beam pattern according to the signal received from the headlamp leveling switch. With the vehicles headlamps ON a signal voltage is sent from the headlamp leveling switch and received at each of the headlamp leveling motors. This signal voltage (typically 2 - 9 volts) tells the headlamp leveling motors where to position the headlamps. The headlamp leveling motors are attached to the headlamps with a pushrod snapped into the rear of headlamp reflector mechanism.