Two Trip Detection Logic
DESCRIPTIONWhen a malfunction is detected for the first time, the malfunction (DTC and freeze frame data) is stored in the ECM memory. <1st trip> The malfunction indicator lamp will not light up at this stage.
If the same malfunction is detected during the next drive, this second detection causes the malfunction indicator lamp to light up. <2nd trip> Specific on board diagnostic items will light up or blink the MIL even in the 1st trip as below.
MIL Setting Standards:
The "trip" in the "Two Trip Detection Logic" means performing of the "DTC Confirmation Procedure".