GM Service Manual Online
For 1990-2009 cars only

The Transmission Scan Tool Data Definitions contain a brief description of manual transmission related parameters available on the scan tool. The list is in alphabetical order. A given parameter may appear in any one of the data lists. In some cases, the parameter may appear more than once or in more than one data list in order to group certain related parameters together.

Clutch Pedal Switch: The scan tool displays Applied or Released. The scan tool displays Applied when you apply the vehicle clutch. The scan tool displays Released when you release the clutch pedal.

Vehicle Speed Sensor: The scan tool displays km/h and mph. The vehicle speed sensor signal is converted into km/h and mph for display on the scan tool.