ACCUMULATOR GP-BRAKE 3654502 - Caterpillar

The personality module that is used for replacement is for a different engine family or a different engine application.Note: The personality module is a flash file. The personality module is installed into the Electronic Control Module (ECM) by flash programming.System Response:The ECM will not log the diagnostic code. The engine will not start. The Caterpillar Electronic Technician (ET) will not be able to reset the diagnostic code.Possible Performance Effect:
The engine will not start.Troubleshooting:Test Step 1.
Check the part number of ECM flash file. Ensure that the flash file part number agrees with the original engine arrangement. Expected Result:The correct flash file is installed in the ECM.Results:
OK - The correct flash file is installed in the ECM.Repair: The diagnostic code 253-02 must be cleared if the correct flash file has been installed. Clearing this diagnostic code requires factory passwords. The personality module code must also be reset to zero.STOP
Not OK - The correct flash file is not installed in the ECM.Repair: Reprogram the ECM with the correct flash file. Refer to Troubleshooting, "Flash Programming".STOP