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Home >> Toyota >> 2003 >> MR2 C65M >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self Diagnostics >> Diagnostic Tests >> DTC P0136: Heated Oxygen Sensor Circuit (Bank 1 Sensor 2) >> Possible Causes
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Possible Causes

DTC is set when heated oxygen sensor 2 voltage remains at 0.4 volt or more, or 0.5 volt or less during vehicle operation (25 MPH or more), once engine is at normal operating temperature. Possible cause is:

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