The heated oxygen sensor is installed at the inlet of the DPD assembly and detects the oxygen concentration in the exhaust gas. This sensor has a pump current circuit, reference voltage circuit, low reference circuit, and heater circuit. If the ECM detects a malfunction in the pump current circuit, reference voltage circuit, or low reference circuit, the DTC is set.
Condition for running the DTC
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P0053 Lambda Sensor Heater Line Error".
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P0606 ECM/PCM Processor".
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P064D Lambda Sensor Control IC Error".
Condition for setting the DTC
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".
Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".