Erratic Display (Internal Cluster Failure)

Perform instrument cluster self-test and check for DTCs. See INSTRUMENT CLUSTER SELF-TEST  under SELF-DIAGNOSTIC SYSTEM. If electronic shifter display passes segment check, go to ERRATIC DISPLAY (BAD PCI BUS MESSAGE FROM TCM) . If electronic shifter display does not pass segment check, replace instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION.