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Scan Tool Data List

Transmission Scan Tool Data List





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Part 2 of 2

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 DTCs 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 tool values below were recorded under the following conditions:
- Engine at idle
- Upper radiator hose hot
- Closed throttle
- Transmission in Park
- Closed Loop operation
- Accessories OFF
- Brake pedal not applied