PCM Reset Mode

The Powertrain Control Module (PCM) reset mode provides a means for the New Generation Star (NGS) to command the PCM to clear all Diagnostic Trouble Codes (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 following list is what happens when a PCM reset is performed:
- 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

PERFORMING PCM RESET
- Perform visual inspection and vehicle preparation as required.
- Select "Vehicle and Engine Selection" menu.
- Select year, engine, and 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.