Code Enable Criteria

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

• DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0117, P0118, P121, P0122, P0123, P0200, P0300, P0410, P0440, P0442, P0446, P0452, P0453, P1258, P1415, P1416, or P1441 are not set.
• Engine is in closed loop.
• Engine run time is more than 160 seconds.
• Engine speed is 1000-2300 RPM.
• Ignition 1 signal is 9-18 volts.
• Engine Coolant Temperature (ECT) is more than 122°F (50°C).
• Evaporative Emissions (EVAP) purge solenoid is more than zero percent.
• Mass Airflow (MAF) is 20-50 grams/second.
• Throttle Position (TP) is more than 5 percent.
• Fuel tank level remaining is more than 10 percent.

DTC will set when PCM determines HO2S transition time ratio is more than or less than calibrated range.