PCM Reset Mode

DESCRIPTION
The PCM reset mode provides a means for the NGS to command the PCM to clear all DTCs. When resetting the powertrain control module, a DTC P1000 will be set in the powertrain control module until all OBD II System or components have been monitored during OBD II drive cycle.

The following happens during 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, 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.