O2S Test Result

For detailed information, see PRE-CHECK .

HO2S Voltage: 

If the sensor voltage is out of the standard value, the ECM interprets this as a malfunction and sets DTC.

Fig 1: O2S Test Result Chart (HO2S Voltage)

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HO2S Low Voltage: 

If all the values ($81, $84 and $85) are out of the standard values, the ECM interprets this as a malfunction and sets DTC.

Fig 2: O2S Test Result Chart (HO2S Low Voltage)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002