Ensure the Scan Tool has been updated with the proper CD Rom version.

The following steps should be followed to perform the recalibration update.

1. Connect the Scan Tool .
2. The ignition should be ON, but the engine should not be operating.
3. Select Instrument Panel Module.
4. Select Special Functions.
5. Select Miscellaneous Test.
6. Select IPM Recalibration.

The Scan Tool will recalibrate the IPM with the latest version. To verify the proper version has been installed follow these steps:

1. Select Data Display.
2. Select Module Information.
3. View the calibration ID number.