OBD-II Drive Mode [AJ]: Notes

• Using the OBD-II drive mode, the monitoring item requested by OBD-II regulations can be easily diagnosed.
• Performing the Drive Mode inspects the OBD-II system for proper operation and must be performed to ensure that no additional DTCs are present.
• The OBD-II drive mode is divided into the specific drive mode and single drive mode.
• For the specific drive mode, specified drive modes have been set for each individual monitoring item requested by OBD-II regulations, and they can be diagnosed individually. For the single drive mode, the entire monitoring item requested by OBD-II regulations can be diagnosed.
• The following modes are in the specific drive mode. The applicable system is diagnosed by driving in the following drive modes.
  • PCM Adaptive Memory Produce Drive Mode
  • EGR System Repair Verification Drive Mode
  • HO2S heater, HO2S, and TWC Repair Verification Drive Mode
  • EVAP System Repair Verification Drive Mode
• The following systems are diagnosed with the single drive mode.
  • EGR system
  • HO2S
  • HO2S heater
  • Catalytic converter (TWC)
  • Fuel, misfire and evaporative (EVAP) system
    CAUTION:

    • While performing the Drive Mode, always operate the vehicle in a safe and lawful manner.
    • When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD function and inspect later.
    NOTE:

    • Vehicle speed and engine speed detected by the PCM may differ from that indicated by the speedometer and tachometer. Use the M-MDS to monitor vehicle speed.
    • If the OBD-II system inspection is not completed during the Drive Mode, the following causes are considered:
      • The OBD-II system detects the malfunction.
      • The Drive Mode procedure is not completed correctly.
    • Disconnecting the battery will reset the memory. Do not disconnect the battery during and after Drive Mode.
    • The M-MDS can be used at anytime through the course of the Drive Mode to monitor the completion status. Monitoring can be done by viewing the ON BOARD SYSTEM READINESS menu.
    • The OBD monitoring status can be confirmed with the ignition switch operation. During KOEO, the MIL illuminates for a fail-light inspection for approx. 17 s  . The OBD monitoring status is confirmed after the fail-light inspection.
      • If all of the diagnosis is completed even one time, the MIL will continue to illuminate.
      • If all of the diagnosis is not completed, the MIL flashes for approx. 7 s  , and then it illuminates until the engine is started.