Conditions For Running DTC

ECT or Intake Air Temperature (IAT) is less than 20°F (-6.7°C) at engine start-up, and ECT sensor is 95°F (35°C) or less after running for 20 minutes.
ECT or IAT 20-50°F (-6.7 to 10°C) at engine start-up, and ECT sensor is 95°F (35°C) or less after running for 5 minutes.
ECT or IAT is more than 50°F (10°C) at engine start-up, and ECT sensor is 95°F (35°C) or less after running for 2 minutes.