July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC 28 - No. 2 Oxygen Sensor Signal

Fig 1: DTC 28 - Schematic

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: DTC 28 - Driving Detection Pattern

Fig 3: DTC 28 - Diagnostic Flowchart