OBD-II Drive Mode Description

WARNING: This page is about a different car, the 2002 Mazda Protege5 and 2002 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.

OBD-II drive mode is performed to inspect proper operation and ensure no additional DTCs are present. During drive mode, following OBD-II systems are inspected:

EGR system.
HO2S and HO2S heater.
Three-way Catalytic (TWC) converter.
Fuel, misfire and evaporative (EVAP) system.

NOTE: DO NOT disconnect battery during and after drive mode. Disconnecting battery will reset memory. If OBD-II system inspection is not completed during drive mode, OBD-II system detects malfunction or drive mode procedure has not been completed correctly.