Clearing Trouble Codes

The PCM Reset Mode permits the NGS to command the PCM to clear all DTCs. When resetting the PCM, a DTC P1000 will be set in the PCM until all OBD II system or components have been monitored during OBD II Drive Cycle.

The PCM reset:
- Clears the DTCs.
- Clears the freeze frame data.
- Clears the oxygen sensor test data.
- Resets the status of the OBD ii system monitors.
- SetstheDTCP1000.

Performing PCM Reset
- Perform visual inspection and vehicle preparation as required.
- Select "Vehicle and Engine Selection" menu.
- Select year, engine, model with the appropriate qualifier if needed (i.e., transaxle, 49 state or California).
- Select Generic OBD II Functions" menu.
- Select "Clearing Diagnostic Codes."
- Follow operating instructions from the NGS menu screen.