Possible Causes
WARNING: This page is about a different car, the 2003 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
DTC will set when output voltage of heated oxygen sensor remains at 0.4 volt or more or 0.5 volt or less when vehicle is driven at 30 mph or more after engine is warmed up. Possible causes are:
- Open or short in heated oxygen sensor circuit.
- Defective heated oxygen sensor.