Two Trip Detection Logic

TWO TRIP DETECTION LOGIC
Specific on board diagnostic items have the two trip detection logic. When a malfunction is detected for the first time, DTC is not stored in the hybrid vehicle control ECU memory. [1st trip] If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in the hybrid vehicle control ECU memory, and the MIL and/or warning lights in the combination meter lights up. [2nd trip]

The "trip" in the "Two trip detection logic" means a driving mode in which self-diagnosis is performed during vehicle operation. For the items which have the two trip detection logic, refer to HBC-611, "DTC Index". Hybrid Control System