GM Service Manual Online
For 1990-2009 cars only

The Transmission Scan Tool Data List contains manual transmission related parameters that are available on the Scan Tool . The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.

A complete list of all engine related scan tool parameters can be found in the Scan Tool Data List in Engine Controls.

Use the Engine Scan Tool Data List only after the following is determined:

    • The Diagnostic System Check - Engine Controls is completed.
    • No diagnostic trouble codes (DTCs)
    • On-board diagnostics are functioning properly.

Scan tool values from a properly running engine may be used for comparison with the engine you are diagnosing. The Engine Scan Tool Data List represents values that would be seen on a normal running engine.

Important: A Scan Tool that displays faulty data should not be used. The Scan Tool condition should be reported to the manufacturer. Use of a faulty Scan Tool can result in misdiagnosis and unnecessary parts replacement.

Only the parameters listed below are referenced in this service manual for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Engine Controls in Engine Controls for diagnosis.

The column labeled Data List indicates where a parameter can be located on the Scan Tool . Refer to the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed:

All: The Parameter is in all of the data lists indicated below.

Eng 1: Engine Data 1 List

Eng 2: Engine Data 2 List

EE: Enhanced EVAP Data

FF/FR: Freeze Frame/Failure Records

FT: Fuel Trim Data List

Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories Off

Scan Tool Parameter

Data List

Parameter Range/Units

Typical Data Values

Clutch Pedal Position Switch

Eng 1, 2

Depressed/Released

Released

Vehicle Speed

ENG 1, 2, EE, FT, FF, FR

km/h (mph)

0