Scan Tool Data List: Notes

WARNING: This page is about a different car, the 2002 GMC Yukon. However, it is still accessible from the selected car via links, so may be relevant.

The RTD scan tool data list contains all the real time damping system related parameters that are available on the scan tool. The parameters in the list are arranged in alphabetical order. The column, Data List, indicates the location of the parameter within the scan tool menu selections.

There are two RPO codes that are incorporated into the data list. The two RPO codes are Z55 and ZK3. The earlier version of the ESC module has RPO Z55 and ZK3. The later version of the ESC module has RPOs Z55 only. The data list is composed of parameters for both RPOs. One of the two Vehicle Speed parameters displayed is designated as ZK3 only.

Use the RTD scan tool data list as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic procedures with the RTD Diagnostic System Check. Use the RTD scan tool data list only after the following is determined:

The RTD Diagnostic System Check is complete
The on board diagnostics are operating correctly
No diagnostic trouble codes (DTCs) are displayed

The typical scan tool data values are an average of the displayed values recorded from normally operating vehicles. The typical scan tool data values are intended to represent what a normally functioning system would display with certain preliminary settings. The values you get may vary slightly due to a low battery charge or other reasons. But the values should be very close.

Use only the parameters listed in the tables for diagnosis. If a scan tool reads other parameters, the values are not recommended for use in diagnosis. Refer to Scan Tool Data Definitions for further detailed information.