Typical Scan Data Values

Diagnostic Chart:

Use the SIR Scan Tool Data List only after the following is determined:

^ Diagnostic System Check is completed.
^ No Diagnostic Trouble Codes (DTCs) are set.
^ SIR Diagnostics indicates functioning properly.

Scan tool values from a properly operating system may be used for comparison with the SIR system you are diagnosing. The SIR Scan Tool Data List represents values seen on a properly operating system.

Important: Make sure the scan tool that you are using is functioning properly. Use of a malfunctioning scan tool can result in misdiagnosis and unnecessary parts replacement.

Only the parameters listed are referenced for use in diagnosis. If all values are within the typical range described below, refer to Intermittents and Poor Connections for diagnosis.