Readiness Test Status

READINESS TEST STATUS

The ECM monitors the following main diagnosis items and records whether the evaluation passing or failing in the past. These records can be read with a scan tool. (When using MUT-II, "Complete" will appear to indicate that the evaluation has been completed.)
These records will all be reset if the battery terminal is disconnected or the DTC are erased, etc.

To set the Readiness Test Status that has been reset to "Complete" again, travel must be carried out once or twice with the "OBD-II Drive Cycle" of the corresponding diagnosis item.
- Catalyst: P0420, P0421
- Evaporative system: P0442, P0455
- Heated oxygen sensor: P0130, P01136
- Heated oxygen sensor heater: P0135, P0141
- EGR system: P0400