Monitored & Set Conditions
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 Dodge Grand Caravan, 2002 Dodge Caravan, 2002 Chrysler Voyager, 2002 Chrysler Town & Country, and 2001 Dodge Grand Caravan. However, it is still accessible from the selected car via links, so may be relevant.
Oxygen sensor monitor will run with engine idling. For 1st part of test, if limits are exceeded, test passes. If no, 2nd part of test runs. Ambient/battery temperature greater than 44°F (7°C), barometric pressure greater than 22.13 in. Hg, battery voltage greater than 10.5 volts, MAP 13.8-21.6 in. Hg, engine speed 1400-2500 RPM (2.4L) or 1120-1950 (3.3L and 3.8L) and vehicle speed 22-60 MPH. DTC will set if O2 Sensor voltage switches from less than .35 volt to greater than .53 volt and back fewer times than required.