Toyota Corolla (E120): Oxygen sensor circuit malfunction

Dtc p0136 oxygen sensor circuit malfunction (bank 1 sensor 2)

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Adjustment
1. Check and adjust brake pedal height Inspect brake pedal height. Pedal height from asphalt sheet: m/t: 134.9 – 144.9 Mm (5.311 – 5.703 In.) A/t: 136.0 – 146.0 Mm (5.353 – 5.747 In.)  Disconnect the connector from the stop lamp switch.  Remove the stop lamp ...

Inspection procedure
1 Check operation(overdrive) Drive the vehicle after the engine warms up.  check that overdrive on e off occurs by an operation of the o/d switch on–off. 2 Inspect terminal voltage(od) Remove the cruise control ecu assy with the connector still connected.  tur ...

Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located before and after the catalyst to determine whether or not the catalyst performance has deteriorated. Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen sensor in front of the catalyst alterna ...