Readiness Test Status

DRIVE CYCLE PATTERN # 7 READINESS TEST STATUS




The ECM records whether a good or bad judgment has been made about the main diagnostic items given below after the completion of a previous monitoring operation.
This record can be read using the scan tool. (When using the scan tool, the word "Complete" appears on the display if the judgment operation has been completed.)

Furthermore, this record is reset if the battery terminals are disconnected or if the DTC is erased.
If a readiness test status has been reset, you will need to drive the vehicle once or twice according to the OBD-II Drive Cycle for the relevant diagnostic item in order to set the status back to "Complete".
- Catalyst: P0420 <2.0L Engine (Turbo), 2.4L Engine - Federal>, P0421 <2.4L Engine - California>
- Evaporative system: P0442, P0455
- Heated oxygen sensor: P0130, P0136
- Heated oxygen sensor heater: P0135, P0141
- EGR system: P0400