On-Board Diagnostic - Introduction

• Basic Knowledge
  • Outline
  • Terminology
    • Mazda Modular Diagnostic System (M-MDS)
  • Drive cycle
  • Diagnostic Trouble Code(s) (DTC)
  • Pending code
  • Continuous Memory Diagnostic Trouble Code (CMDTC)
  • On Demand Diagnostic Trouble Code (ODDTC)
  • Data logger
  • Freeze frame data, Snapshot data
  • Functions
  • Malfunction detection function
  • External on-board diagnostic tester communication function
  • Memory function
  • Malfunction indication function
  • PID/data monitor function
  • Simulation function
  • How to make use of PID/data monitor function and simulation function (Ex. Wipers do not operate correctly)
  • Self-test function
  • On-Board Diagnostic (OBD) test mode
  • Topological figure
  • Block Diagram
• Circuit Inspection
  • Circuit Inspection Table
  • Inspection for Short to Ground and Open Circuit in Power Supply Circuit
  • Inspection for Short to Ground in Circuit
  • Inspection for Short to Power Supply in Circuit
  • Inspection for Open Circuit in Circuit
    • Circuit between module and part
    • Circuit between part and body ground
  • Inspection for Short Circuit in Circuits
• Clearing DTC
• Configuration
• Connector Inspection
• DTC Inspection
  • Quick Check
  • On-demand Self-test
• On-Board Diagnostic (OBD) Test Modes
• PID/Data Monitor Inspection
• Simulation Inspection
• Tester Usage History
  • Notes
  • Displaying Tester Usage History for Vehicle Connected to M-MDS
  • Displaying Tester Usage History after Specifying Vehicle Identification Number
• Troubleshooting Procedure
  • Notes
  • Troubleshooting Procedure
  • Action for Non-repeatable Malfunction
  • Vibration inspection
  • Water spraying inspection