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ON-BOARD DIAGNOSTIC (OBD) SYSTEM OUTLINE [FS5A-EL]

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• The OBD system has the following functions:

  - Malfunction detection function: detects malfunctions of the input/output devices and system components of the ATX.
  - Fail-safe function: fixes the output device function and input value of the sensors/switches to ensure minimum vehicle drivability when a malfunction is detected.
  - Memory function: stores the DTC when a malfunction is detected.
  - PID data monitoring function: monitors the input/output signal and calculated value of the TCM and sends the monitoring data to the WDS or equivalent.
  - Simulation function: Allows override operation of simulation items for input/output system parts preset in the TCM.