Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Sfi system / Oxygen sensor circuit no activity detected

Toyota Corolla (E120): Oxygen sensor circuit no activity detected

Dtc p0134 oxygen sensor circuit no activity detected (bank 1 sensor 1)

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Replacement
1. Remove instrument panel sub–assy lower 2. Remove clutch pedal spring 3. Remove clutch master cylinder push rod clevis w/hole pin Remove the clip and hole pin. 4. Remove clutch pedal support sub–assy W/ cruise control: disconnect the clutch switch assy connector. &nbs ...

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 ...

Oxygen / af sensor heater monitor
Preconditions The monitor will not run unless: mil is off  drive pattern  connect the obd ii scan tool to the dlc3 to check monitor status and preconditions.  Start the engine and allow it to idle for 9 minutes.  Drive the vehicle at 25 mph (40 km ...