Data Displays

WARNING: This page is about a different car, the 1999 GMC Sierra and 1999 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The scan tool displays the instrument cluster data. This information assists in determining whether the cluster is operating properly and whether the cluster is sending or receiving the proper data to and from a particular system. The instrument cluster uses data received from other systems in order to carry out some functions. Therefore, if the cluster receives the incorrect data from another system, the module may function improperly. Use the scan tool in order to review the data from the systems that interact with the cluster.

The instrument cluster scan tool data display values and definition information can assist in diagnosing instrument cluster related problems, especially when no diagnostic trouble codes (DTC) are stored in memory. A vehicle scan tool data can be compared with the data display values from a known good vehicle in the scan tool data display table. When data from the vehicle differs from the typical data display value, the data definition information will help in understanding the nature of the difference and the source of the problem.