General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible Cause
General Enable Conditions	Vehicle speed = 0 Coolant temperature > 70°C (158°F) Intake air temperature > -7.5°C (18.5°F) Altitude < 3000m (9841ft) Idle status	Poor connection Leak or clog in intake air system Carbon pile ISCA ECM
Case1	DTC Strategy	Rationality check, low (During catalyst heating)
Enable Conditions	Idle controller I part = 15.0% Engine load < 35% Catalyst heating is activated.
Threshold Value	Desired engine speed - Engine speed > 100rpm
Diagnostic Time	8sec
Case2	DTC Strategy	Rationality check, high (During catalyst heating)
Enable Conditions	Idle controller I part = -15.0% Catalyst heating is activated.
Threshold Value	Desired engine speed - Engine speed < - 200rpm
Fuel cut-off ≥ 3 times
Diagnostic Time	8sec
MIL ON Condition	2 driving cycle