PCM Reset Mode (Clearing DTC's)

DESCRIPTION
The PCM reset mode provides a means for the NGS to command the PCM to clear all DTCs. When resetting the PCM, a DTC P 1000 will be set in the PCM until all OBD II system or components have been monitored during OBD II drive cycle. A 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.
- sets the DTC P1000.

PROCEDURE
- Perform visual inspection and vehicle preparation as required.
- Select "Vehicle and Engine Selection" menu.
- Select year, engine, model with the appropriate qualifier if needed, for example, transmission or 49 state/California.
- Select "Generic OBD II Functions" menu.
- Select "Clearing ALL Codes."
- Follow operating instructions from the NGS menu screen.
- Perform OBD II Drive Cycle-Clear DTC P1000.