Circuit Description

Refer to DTC P2195 DTC P2195 OXYGEN (A/F) SENSOR SIGNAL STUCK LEAN (BANK 1 SENSOR 1), DTC P2196 OXYGEN (A/F) SENSOR SIGNAL STUCK RICH (BANK 1 SENSOR 1)  .

Fig 1: DTC P2A00 Detection Condition And Trouble Area

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

Sensor 1 refers to the sensor mounted before the TWC and is located near the engine assembly.