Title: Perform diagnostic procedures using the recommended electronic service tool(s).
Course: Diesel Equipment Technology II (20107-II) > Section: Electrical/Electronic Systems: Servicing the Lighting Systems

Performance should include

- determining the connector location
- entering the correct vehicle data
- using the scan tool
- acquiring
  - diagnostic trouble codes (DTCs)
  - on-board diagnostic (OBD) monitor status
  - freeze frame data
  - read the DTCs
- clear DTCs, when applicable.

ASE 2: V. Electrical/Electronic Systems: E. Lighting Systems (P-3)

Process/Skill Questions:

- What does the DTC prefix indicate about the system?
- What functions can the scan tool perform to aid in diagnosis?