Sprinter 3500 V6-3.0L DSL Turbo VIN 45 (2007)
Headlamp Alignment Sensor: Description and Operation
Description
DESCRIPTION
Two axle sensors (1) are used on vehicles equipped with the optional xenon (also known as bi-xenon or High Intensity Discharge/HID) headlamps, one
each for the front and rear axles of the vehicle. The front and rear sensors are identical, but are secured by screws to a unique fixed bracket that is
mounted to a frame crossmember above the left front suspension lower control arm or above the left end of the rear axle. The sensor has a mechanical
lever arm (2) that rotates a sensor input shaft. The opposite end of the lever arm is secured by a nut to a ball stud on a unique linkage that is articulated
by the changing positions of the left front or left rear suspension members to the frame.
The axle sensor housing has an integral connector receptacle and integral mounting holes. A cavity in the center of the molded plastic impact sensor
housing contains the electronic circuitry of the sensor. The sensor housing is sealed to enclose and protect the internal electronic circuitry and
components. The axle sensors are each connected to the vehicle electrical system through a dedicated take out and connector of the vehicle wire harness.
The axle sensors cannot be repaired or adjusted and, if damaged or ineffective, they must be replaced.
