DTC Information: DTC Detecting Condition

Item	Detecting Condition	Possible cause
DTC Strategy	Monitor the spark timing	Intake system for blockage Throttle plate for carbon deposits
Enable Conditions	Battery Voltage between 11V and 16V Engine is running (idle) Cold Start Catalyst Light Off active Desired Catalyst Light Off RPM Offset is greater than 15 RPM
Threshold value	Idle RPM Shift up is lower than 15 RPM Idle RPM Shift up is greater than 15 RPM and the difference between target and actual idle RPM is more than 20 RPM
Diagnosis Time	10 sec.
MIL On Condition	2 Drive Cycles