Recent SemestersFall 2026, Spring 2026Class Size20 studentsCredits3PrerequisitePrerequisite: AUT 3 (or concurrent enrollment) Corequisite: AUT 74 Transfers ToCSUDescriptionThis course develops the skills needed to safely diagnose, repair and maintain the systems and sub-systems specific to over-the-road diesel powered vehicles. Topics will include: Diagnosing problems in mechanical, electrical, pneumatic, and electronic systems with industry standard test equipment; Troubleshooting the sophisticated electronic controls that govern engine performance and horsepower as well as transmission and braking systems; Troubleshooting steering, hydraulic, pneumatic systems, brakes, axles, differentials, electric motors, and compressors. Students will learn industry standardized safety inspection procedures.Usually HeldTue Wed Thu 7:30am–8:20am 