Code Enable Criteria

For DTC to run, the following conditions must be met:

• DTCs P0101, P0102, P0103, P0107, P0108, P0112, P0113, P0117, P0118, P0121, P0122, P0123, P0125, P0128, P0201-P0206, P0300, P0410, P0440, P0442, P0443, P0446, P0449, or P1441 are not set.
• Engine Coolant Temperature (ECT) is more than 122°F (50°C).
• Engine speed is 1000-3000 RPM.
• Mass Airflow (MAF) is 10-30 grams/second.

DTC will set when HO2S lean-to-rich average transition response time was longer than 63 milliseconds or rich-to-lean average transition response time was longer than 190 milliseconds.