OBD-II Drive Mode: Notes

WARNING: This page is about a different car, the 2021 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

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.
- Mode 03 (EGR System, Variable Valve Timing, A/F Sensor, HO2S and TWC Repair Verification Drive Mode)
- Mode 06 (EVAP System Repair Verification Drive Mode)
The following systems are diagnosed with the Single Drive Mode.
- Oxygen sensor (A/F sensor, HO2S)
- Catalytic converter (TWC)
- Evaporative (EVAP) system
  WARNING:
  - 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 anytime during the drive mode course to monitor the completion of the Drive Mode. Conditions can be monitored by viewing the Mode 01 Powertrain Data menu. (See ON-BOARD DIAGNOSTIC (OBD) TEST MODES .)
The OBD monitoring status can be confirmed with the ignition switch operation. During KOEO, the check engine light 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 check engine light will continue to illuminate.
- If all of the diagnosis is not completed, the check engine light flashes for approx. 7 s, and then it illuminates until the engine is started.