Scan Tool Data List: Overview
TYPICAL SCAN DATA VALUESUse the Typical Scan Data Values table only after the following is determined:
^ On-Board Diagnostic System Check is Completed.
^ No Diagnostic Trouble Codes (DTCs).
^ 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 Tool Data Values represent values that would be seen on a normally running engine.
The column labeled Data List indicates where a parameter can be located on the Scan Tool. The following is a description of each term listed:
^ Eng 1 = Engine 1 Data List
^ Eng 2 = Engine 2 Data List
^ Eng 3 = Engine 3 Data List
^ FT 1 = Fuel Trim 1 Data List
^ FT 2 = Fuel Trim 2 Data List
^ Misfire = Misfire Data List
The values specified for Cold Idle and Hot Idle under Engine Data are based on approximate outside temperatures of 16°C (60°F) at 900 feet above sea level. The values specified for Cold Key On and 55 Cruise under Engine Data are based on approximate outside temperatures of 27°C (81°F) at 900 feet above sea level. Due to the wide range of readings possible for some parameters the values can range outside the values specified under certain conditions.
NOTE: A scan tool that displays faulty data should not be used. The scan tool problem should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.