DTC 21 - Oxygen Sensor Signal

Fig 1: DTC 21 - Schematic

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: DTC 21 - Driving Detection Pattern (1 Of 2)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: DTC 21 - Driving Detection Pattern (2 Of 2)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: DTC 21 - Diagnostic Flowchart

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002