Toyota — Electronic & Computer Controlled Systems Course 673 Technician Handbook (EN)

Objectives 673 Electronic & Computer Controlled Systems 11. Properly set-up an oscilloscope • Auto features • Voltage & Time Scale Settings • Horizontal & vertical rulers • Trigger point • Horizontal & vertical zoom features • Masks & Alarms 12. Apply the basic features of the oscilloscope used in combination with the Techstream Unit. 13. Locate and back probe a dimmer-controlled interior lamp or LED, practice measuring Voltage (V), Hertz (Hz), and percentage values (%) using a DVOM, and use an oscilloscope to display the signal pattern. 14. Set oscilloscope voltage and time settings appropriate to the circuit measured. 15.

Utilize oscilloscope patterns derived from a known good vehicle to verify normal system operation. 16. Differentiate between different oscilloscope patterns. 17. Use an oscilloscope to confirm proper operation vs. a faulty circuit • Duty cycle • Frequency • Amplitude 18. Use an oscilloscope to identify intermittent faults. 19. Capture, record, save and send oscilloscope waveforms. 20. Identify Body Electronics Area Network topology and network operation. 21. Perform fault diagnostics on a BEAN network. 22. Identify Local Interconnect Network topology and network operation. 23.

Monitor and diagnose the AC Control Assembly operation and LIN communication using Techstream, an oscilloscope and TIS. 24. Identify Controller Area Network topology and network operation. 25. Use an ohmmeter and an oscilloscope to observe CAN High and CAN Low; diagnose a short to ground and an open circuit on CAN High and CAN Low; and short CAN High to CAN Low to observe the results. 26. Develop a strategy to diagnose a CAN Network fault using the EWD, a Techstream CAN Bus Check, and the information provided. 27. Identify Audio Visual Communication-Local Area Network topology and network operation. 28.

Create, monitor and diagnose an AVC-LAN System amplifier malfunction using Techstream and an oscilloscope. 29. Identify AVC-LAN plus and Media Oriented Systems Transport topologies and network operation. 30. Monitor AC bus and servo motor operation using Techstream DATA LIST and an oscilloscope to deduce communication problems with the AC System. 31. Reference the PICO Waveform Database, TMS Waveform Library to: - Load and manipulate saved waveforms - Compare “Known Good” waveforms to live data b Technical Training