ON-BOARD DIAGNOSTIC (OBD) SYSTEM OUTLINE [FN4A-EL]

- Failure detection function: detects failure of 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 failure is detected.

- Memory function: stores the DTC when a failure is detected.

- PID data monitoring function: monitors the input/output signal and calculated value of the PCM 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 PCM.