OBD II Monitoring Conditions

OBD II Monitoring Conditions:

When testing for DTC reoccurrence, it can be determined if the Service Drive Cycle was of sufficient length by performing a PDU "Systems Readiness Test".
The Systems Readiness Test is accessed via the PDU menu structure. PDU will report if any portion of the Systems Readiness Test has not been completed in the following manner:

The following less frequently performed tests are identified as incomplete:
Module $11 (identifies EMS ECM)
- Catalyst
- Evaporative purge system
- O2 sensor
- O2 sensor heaters

Further confirmation of the System Readiness Test status is available by retrieving the logged DTCs.
- If DTC P1000 is logged in memory, the on-board diagnostic tests have not been completed.
- If DTC P1111 is logged in memory, all on-board diagnostic tests have been completed.

Refer to "Key to Column Headings" for important information regarding the use of the DTC Summaries.