Training material for the Lexus L652 course covering use of the Electrical Wiring Diagram for body electrical diagnosis.
This course handbook introduces the features of each Electrical Wiring Diagram (EWD) section and explains how to use system circuit diagrams for diagnosing body electrical problems. It guides technicians through tracing current flow, interpreting symbols, and locating components using the EWD.
The manual also details wire identification conventions, junction and relay block markings, and provides connector lists and part numbers. Practical worksheets and a six‑step troubleshooting example help reinforce the material.