Headlamp Motor: Description and Operation
HEADLAMP LEVELING MOTORTwo leveling motors are used per vehicle, one for each headlamp. These leveling motors are attached to the rear of the headlamp. They can be described as a small semi-square shaped module with an electrical connector attached to one side. Due to vehicle design these motors can only be serviced or accessed from the under side of 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 were to position the headlamps.