5L50-E Automatic Transmission

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.

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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