Drive unit

The invention relates to a drive unit for a drive device (2), in particular a spindle drive, for adjusting an adjusting element (3) of a motor vehicle, the drive unit (1) having an electric drive motor (5) with a motor housing (5a); a cable module (7) having a motor circuit board (8) electrically connected to the drive motor (5) and having a cable module cover (9) into which one or more conductors (10) for electrically connecting to the drive motor (5) and the motor circuit board (8) are guided; at least one, in particular tubular housing part (1a, 2a) which is connected to the cable module cover (9) in an axially fixed manner with respect to a geometric drive axis (4); and a joint part (12) which, together with a motor vehicle-side mating joint part (13), forms a first drive connection (14a), the joint part (12) having an engagement section (15) and the cable module cover (9) having a corresponding mating engagement section (16). According to the invention, during the assembly of the drive unit (1), an engag