VT25-E Automatic Transmission

VT25-E AUTOMATIC TRANSMISSION

Scan Tool Data List
Use the Scan Tool Data List under the following conditions:
^ The Diagnostic System Check - Automatic Transmission has been completed.
^ The On-Board Diagnostics are functioning properly.
^ No DTCs are present.

Important: Do not use a scan tool that displays faulty data. Report the condition to the scan tool manufacturer. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts.

Only the parameters listed below are used in this service manual for diagnosing. If a scan tool displays other parameters, the values are not recommended by General Motors for use in diagnosis.
Scan tool values below were recorded under the following conditions:
^ Engine at idle
^ Upper radiator hose is hot
^ Closed throttle
^ Transmission in Park
^ Closed loop operation
^ Accessories OFF
^ Brake pedal not applied





Scan Tool Parameter
Diagnostic Information and Procedures