3T40 Automatic Transaxle

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 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 applied