PISTON 3G3703 - Caterpillar

that replacement of the ECM is necessary prior to replacement of the ECM. The ECM is seldom the cause of a diagnostic code. Always check that the proper ground and power is available to the ECM. Consult with your Technical Communicator before replacing the ECM.
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness from the ECM.
Remove the ECM.
Ensure that the replacement ECM has the correct part number.
Connect the machine harness to the ECM.
Determine whether the ECM has been programmed. Connect the Caterpillar Electronic Technician (ET) to the service tool connector. Cat ET communicates to the ECM.Cat ET will provide access to the ECM, if the ECM has already been programmed.
With Cat ET selects the "Service" function from the drop-down menu. Then, select the "Configuration" function. A list of items will appear. Each item in this list should be checked to verify that the setting matches the machine configuration. The following information is an example to verify the proper machine configuration.The following information is an example to verify the proper machine configuration.Example 1
Select "Ripper Installation Status" from the choices.
Select the "Change" button.
select "Installed" or "Not Installed".Example 2
Select the "Service" function from Cat ET.
Select "Configuration" from the choices.
Select "Ripper Auto Stow Configurations".
Select the "Change" button.
Select "Ripper Raise" or "Ripper Raise And Shank In".
Perform all applicable system calibrations. See the Testing and Adjusting, "Calibration" procedure in this manual.Note: Some variations in the Cat ET menu may be experienced. View the proper subject for information about a specific Cat ET menu.Note: Perform all calibration procedures, even if the replacement ECM was acquired from a similar machine. Ensure that all calibration procedures are performed. Performance may be affected if any of the calibration procedures are omitted.Note: The profile of the operator will be lost when the ECM is replaced.