Scan Tool Data List - Powertrain System

Scan Tool Data List Part 1:

Scan Tool Data List Part 2:

Scan Tool Data List Part 3:

Scan Tool Data List Part 4:

Use the Typical Scan Data Values table only after the Diagnostic System Check-Computers and Controls Systems has been completed, no DTCs were noted and you have determined the on-board diagnostics are functioning properly. Scan tool values from a properly running engine may be used for comparison with the engine you are diagnosing. The Typical Scan Data values represent values that would be seen on a normally running engine.

IMPORTANT: A scan tool that displays faulty data should not be used, and the problem should be reported to the scan tool manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.

Only the parameters listed below are referred for use in diagnosis. For further information on using the scan tool to diagnose the PCM and related sensors, refer to the applicable reference listed below. If all values are within the typical range described below, refer to Symptoms-Computers and Controls Systems. Symptom Related Diagnostic Procedures

The Typical Scan Data Values table contains all the parameters included in the following data lists arranged in alphabetical order:
^ Engine Data 1-Contains general information regarding fuel delivery, idle air control (IAC) position, heated oxygen sensor (HO2S) 1, HO2S 2, and other basic engine operating conditions.
^ Engine Data 2-Contains general information regarding engine coolant temperature (ECT), intake air temperature (IAT), mass air flow (MAF), manifold absolute pressure (MAP), and other basic engine operating conditions.
^ Exhaust gas recirculation (EGR) Data-Contains information specific to the EGR system. This list displays parameters required to verify proper EGR system operation
^ Evaporative emission (EVAP) Data-Contains information specific to the EVAP control system. Also displays parameters required to verify proper EVAP system operation.
^ Fuel Trim Data-Contains information specific to the fuel trim operation. Also displays parameters required to verify proper fuel trim operation.
^ Misfire Data-Contains information specific to the misfire diagnostics and parameters required to verify proper operation with regard to misfire.
^ Output Driver Data-Contains information specific to output driver circuits. This data monitors circuit status, and circuit history.

For scan tool parameter definitions, refer to Scan Tool Data Definitions. Scan Tool Testing and Procedures

IMPORTANT: Use the Typical Scan Data Values only after the following conditions are met:
^ The Diagnostic System Check-Computers and Controls Systems has been completed.
^ The engine is idling unless checking a value at a specified RPM.
^ The throttle is closed unless checking a value at a specified RPM.
^ The vehicle is in PARK or NEUTRAL.
^ The vehicle is operating in Closed Loop.
^ The vehicle accessories are turned OFF.