Here is the quickest method of updating the basic settings of your GTO cluster, to include: shiftlight activation based on RPM, cluster logo and shutdown text

This has been created by the collaborative efforts of the www.ls1gto.com community - details can be found in the "Program Your Own Cluster: A Reality" thread

One

Download the OSE Utility

Two

Purchase a known working data cable

Three

Complete the worksheet and click the 'Get Complete String' button at the bottom of the page. Highlight the entire row (CTRL+A) and copy (CTRL+C)
Worksheet

Four

Connect your cable between the computer and to the OBD connector and turn the key to the 'ON' position

Five

Run the OSE utility and configure User Preferences as follows:
Access User Preferences by clicking OPTIONS then Preferences

Note: You will need .NET 3.5 Framework or higher to run the OSE utility

Six

After configuring user preferences, update the cluster through the following steps


-Click TOOLS, then "LISTEN TO CHATTER AND SEND ALDL COMMANDS TO ECM"


-Check the "AUTO CALCULATE FRAME CHECKSUM" box, then click within the white field and use CTRL+V to paste the HEX string copied from step #3


-Click the "SEND COMMAND" button