Scan Tool Data List

Scan Tool Data List (Part 1 Of 4):

Scan Tool Data List (Part 2 Of 4):

Scan Tool Data List (Part 3 Of 4):

Scan Tool Data List (Part 4 Of 4):

Use the Typical Scan Data Values table only after the Diagnostic System Check - Computers and Control 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 to in this service manual for use in diagnosis. For further information on using the scan tool to diagnose the Powertrain Control Module (PCM) and related sensors, refer to the applicable reference section listed below. If all values are within the typical range described below, refer to Symptoms - Computers and Control Systems. 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 (HO2S1), HO2S2, 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.
^ EGR Data-Contains information specific to the Exhaust Gas Recirculation (EGR) system. This list displays parameters required to verify proper EGR system operation.
^ EVAP Data-Contains information specific to the evaporative emissions (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. Symptom Related Diagnostic Procedures

For scan tool parameter definitions, refer to Scan Tool Data Definitions. Scan Tool Data, Normal Values and Definitions

IMPORTANT: Use the Typical Scan Data Values only after the following conditions are met:
^ The Diagnostic System Check-Computers and Control 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.