This SAE Standard provides test procedures, requirements, and guidelines for clearance, sidemarker, and identification lamps intended for use on vehicles 2032 mm or more in overall width. A clearance lamp, sidemarker lamp, or an identification lamp conforming to the requirements of this document may be used on vehicles less than 2032 mm in overall width.
Moved SAE J387 Terminology - Motor Vehicle Lighting from 2.2 to 2.1
Moved SAE J1889 L.E.D. Signal and Marking Lighting Devices from 2.2 to 2.1
Removed from 2.2.1 because it was not correct - SAE J567 Sidemarker Lamps for Use on Road Vehicles Less than 2032 mm in Overall Width
Changed 3.2 SIDEMARKER LAMP to agree with SAE J387 Lighting devices used to indicate the presence and length of the vehicle by a steady operating, low intensity light when viewed from the side
Changed 3.3 Identification lamps to agree with SAE J387 A group of three lamps in a horizontal row which provide light to the front or rear or both, to identify vehicles 2032 mm or more in overall width
Added 3.5 For additional definitions refer to SAE J387 Terminology-Motor Vehicle Lighting
Added - 184.108.40.206 Lamps utilizing LED light sources should utilize SAE J1889 photometry requirements
Added - 220.127.116.11 Lamps utilizing LED light sources should utilize SAE J1889 thermal cycle test instead of the J2139 warpage test.
Added 18.104.22.168 Lamps utilizing LED light sources should use SAE J1889 Thermal Cycle test instead of the SAE J2139 Warpage test.
Added following statement to 6.5.3 - having a light center spacing of not less than 150mm nor more than 300mm apart.