DTC Set Conditions

Check conditions are where engine coolant temperature is lower than approximately 212°F (100°C) when the engine is started, intake air temperature is lower than 140°F (60°C) when the engine is started, under the closed loop air/fuel ratio control, engine coolant temperature is higher than 171°F (77°C) and volume airflow sensor output frequency is 100 Hz or more. Judgement criteria is where long-term fuel trim has continued to be higher than +12.5% for 5 seconds or short-term fuel trim has continued to be higher than +7.4% for 5 seconds.

Check conditions are where engine coolant temperature is lower than approximately 212°F (100°C) when the engine is started, intake air temperature is lower than 140°F (60°C) when the engine is started, under the closed loop air/fuel ratio control, engine coolant temperature is higher than 171°F (77°C) and volume airflow sensor output frequency is 100 Hz or less. Judgement criteria is where long-term fuel trim has continued to be higher than +12.5% for 5 seconds or short-term fuel trim has continued to be higher than +12.5% for 5 seconds.

Check conditions are where engine coolant temperature is higher than approximately 212°F (100°C) when the engine is started, intake air temperature is higher than 140°F (60°C) when engine is started, under the closed loop air/fuel ratio control, engine coolant temperature is higher than 171°F (77°C) and volume airflow sensor output frequency is 100 Hz or more. Judgement criteria is where long-term fuel trim has continued to be higher than +12.5% for 5 seconds or short-term fuel trim has continued to be higher than +17.6% for 5 seconds.

Check conditions are where engine coolant temperature is higher than approximately 212°F (100°C) when the engine is started, intake air temperature is higher than 140°F (60°C) when the engine is started, under the closed loop air/fuel ratio control, engine coolant temperature is higher than 171°F (77°C) and volume airflow sensor output frequency is 100 Hz or less. Judgement criteria is where long-term fuel trim has continued to be higher than +12.5% for 5 seconds or short-term fuel trim has continued to be higher than +22.3% for 5 seconds.

Check conditions are where engine coolant temperature is higher than 171°F (77°C) and the system is under the closed loop air/fuel ratio control. Judgement criteria is where long-term fuel trim has continued to be +12.5% for 5 seconds or short-term fuel trim has continued to be +25.0% for 5 seconds.