3T40 Automatic Transaxle

Transmission Scan Tool Data List





Use the scan tool data values under the following conditions:
^ The Powertrain Diagnostic System Check is complete
^ The on-board diagnostics are functioning properly
^ No DTC's are present
The values below represent a typical display recorded from a properly functioning system.

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 for diagnosing. If a scan tool displays other parameters, the values are not recommended by General Motors for use in diagnosis.
Scan values are performed 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 availed