How to read and interpret OBD-II codes
A code tells you which system failed a test, not which part to replace.
7 steps →How-to guides
Automotive Service Technician How-To Guides
Step-by-step guides to common automotive service technician tasks: the practical side of the job.
Common automotive service technician tasks
Step-by-step overviews of tasks automotive service technicians perform regularly. Use them to understand the job, prepare for training or refresh your memory.
How to replace front brake pads and rotors
Brake work is a core skill. Always follow the manufacturer’s procedures and torque specs.
7 steps →How to torque lug nuts correctly
Improper lug nut torque can warp rotors or let a wheel come loose.
6 steps →Before you practice
Learn every core task
Our Automotive Service Technician training walks through these procedures and more, alongside vocabulary, safety and career-launch lessons.