OBD-II Drive Mode Description

OBD-II drive mode is a pattern of driving in which the PCM will execute following OBD-II diagnostic monitors:

• Catalytic converter.
• EGR system.
• Fuel, misfire and evaporative emission control system.
• Oxygen sensor and oxygen sensor heater.

DO NOT disconnect battery during and after drive mode. Disconnecting battery will reset memory. Drive mode can be used to cause a DTC to set if a fault is present or to verify that a DTC will not return after a repair has been completed. If OBD-II system inspection is not completed during Drive Mode, check for following causes:

• OBD-II system detects malfunction.
• Drive Mode procedure was not completed correctly.

Scan tool can be used at anytime during Drive Mode to monitor completion status. Monitoring can be done by accessing ON BOARD SYSTEM READINESS menu.