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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 124 (Engine Control System Self Diagnostics - 4-Cylinder) >> Diagnostic Tests >> DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2) >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2003 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.

DTC is set when heated oxygen sensor output voltage remains at 0.40 volt or more, or 0.60 volt or less when vehicle is driven at 25 MPH with engine at normal operating temperature. Possible causes are:

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