General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible cause
DTC Strategy	Response time of lean to rich (TLR) & rich to lean (TRL) are monitored with intentional A/F change.	Poor connection Faulty HO2S Faulty PCM
Enable Conditions	Closed loop
	Engine coolant > 50°C (122°F)
	Engine speed 1200~3000 RPM
	Load value: 23~60%
Threshold value	From lean to rich (TLR) > 1.3 sec
Threshold value	From rich to lean (TRL) > 0.8 sec
Diagnosis Time	8 seconds
MIL On Condition	2 driving cycles