Using Generic Scan Tool

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
These are general instructions to reset PCM. Refer to the manufacturer's manual for specific instructions.

- Turn key Off.

- Perform the necessary vehicle preparation and visual inspection.

- Connect scan tool to DLC.

- Turn ignition key to the On position or START vehicle (depending on the pinpoint/diagnostic manual instructions for the type of data requested).

- Verify tool is connected and communicating properly.

- Perform reset.

- When finished, turn ignition key to the Off position.

- Disconnect scan tool from vehicle.