Operation CHARM: Car repair manuals for everyone.

Using New Generation STAR (NGS) Tester

DESCRIPTION
The Powertrain Control Module (PCM) Reset allows the scan tool to command the PCM to clear all emission-related diagnostic information. When resetting the PCM, a DTC P1000 will be stored in the PCM until all the OBD II system monitors or components have been tested to satisfy a Trip without any other faults occurring.

For more information about a Trip, refer to Trips and Drive Cycles. Trips and Drive Cycles

The following events occur when a PCM reset is performed:
- Clears the number of Diagnostic Trouble Codes (DTCs).

- Clears the DTCs.

- Clears the Freeze Frame Data.

- Clears Oxygen Sensor Test data.

- Resets status of the OBD II system monitors.

- Sets DTC P1000.

PCM Reset Procedure
- Turn key Off.

- Perform the necessary vehicle preparation and visual inspection.

- Select VEHICLE & ENGINE SELECTION menu (OPTIONAL).

- Select NEW VEHICLE YEAR & MODEL.

- Select year, engine, model with the appropriate qualifier, if needed (i.e., transmission, 49 State, California) (OPTIONAL).

- Follow operating instructions from the menu.

- Select GENERIC OBD II FUNCTIONS.

* Press CONT button if all OBD II monitors are not complete.

- Turn key On.

- Select CLEAR DIAGNOSTIC CODES.

- Press START Key.