Motor vehicle lamp, back cover of motor vehicle lamp, and method for manufacturing back cover of motor vehicle

A back cover of a motor vehicle lamp includes a plurality of types of blocks (14 to 20) provided with joints that join the blocks (14 to 20) together; terminals (42) fixed to a connector (21) of the plurality of types of blocks, and bulb holders (25, 29); and a cord (41) wired between the terminals (42). The blocks (14 to 20) are selected to match with a structure of a motor vehicle lamp, and the selected blocks (14 to 20) are joined together via the joints. As a result, it is possible to structure the back cover (4) to match with a variety of structures of the motor vehicle lamp. Further, it is possible to have in common a plurality of types of blocks (14 to 20) that constitute the back cover (4). Therefore, it is possible to manufacture the back cover (4) at low cost.