GLASS 7G2454 - Caterpillar

Prior to replacement of a module, ensure that replacement is absolutely necessary. A diagnostic code is seldom caused by the module. Always ensure that the machine code is correct for the machine. Also ensure that the power is available to the main display module. The system voltage is required between the contacts 1 and 2 of the connector for the main display module.Procedure
Replace the module.
Turn the key start switch to the OFF position.
Disconnect the machine harness from the module.
Ensure that the module that is replacing the old module has the correct part number.
Install the new module.
Connect the machine harness to the module. On so equipped machines, make sure that the harness code plug is installed.
Turn the disconnect switch and the key start switches to the ON position. Make sure that the module successfully completes the self test: see Testing and Adjusting, "Self Test".Expected Results: The module has been successfully replaced and the module has completed the self test.Results:YES - The module has been successfully replaced and the module has completed the self test. STOP.NO - The module has been successfully replaced but the module has not performed the self test properly. Ensure that the module is correct. Ensure that the installation is correct and ensure that no related diagnostic codes are present. STOP.
Setup
If necessary, use ET in order to flash new operating software onto the ECM for the new module. For the correct procedure, refer to the Service Manual module Module - Flash Program.
Perform a setup of the Messenger display. Refer to the Service Manual module Menus (Messenger), "Machine Settings Menu" for the machine that is being serviced.