Explains the differences between OBD-I and OBD-II.

Identifies the various OBD-II communication protocols.

Teaches the interpretation of five-character diagnostic trouble codes (DTCs).

Examines the differences between trips, drive cycles and warm-up cycles.

Explores the operation of the diagnostic monitors.

Shows the value of Freeze Frame and Readiness Status for diagnostics.

Presents a well-organized strategy for troubleshooting system failures.