The materials included in "Automotive Computer Units" represent a unit of instruction to acquaint auto mechanics at all skill levels with the use of computers in today's automobiles. The unit is designed for use in full-time secondary and postsecondary classes and part-time adult classes. It may be adapted to open-entry, open-exit programs for short-term courses or as part of a more indepth course. This unit is not specifically designed to be presented in one lesson or class period of instruction. The unit consists of eight basic components: performance objectives, teacher activities, supplements (transparencies that present new information or reinforce information), information sheets (content essential for meeting the cognitive objectives), assignment sheets (applications of knowledge that is a prerequisite to skill development), job sheets (procedures to complete a manipulative or psychomotor skill), tests, and test and assignment sheet answers. The material in the unit is intended to enable the student to describe the functions of automotive computer components and to diagnose computer-related malfunctions. (YLB)