DTC P0136 - Oxygen Sensor Circuit (Sensor No. 2): Condition

DTC is set when sensor No. 2 voltage remains at .40-.55 volt during vehicle operation (25 MPH or more), once engine is at normal operating temperature. Possible cause is:

Oxygen sensor.

NOTE: Sensor No. 1 refers to sensor located in exhaust manifold. Sensor No. 2 refers to sensor located behind catalytic converter.