HARNESS AS-WIRING 1435374 - Caterpillar

Illustration 1 g03866628
Fleet Configuration Screen
Click on the "Save to File" push button. The "Print New Document to File" dialog box is displayed. If you do not have a file open, a dialog box will ask you to choose one of the following options: open a file, create a file and cancel. Choose the "New" button to continue. Enter a document name and description in the appropriate text boxes. Click on "OK". The "Fleet/Key Configuration saved successfully" message box should display. Click on "OK". You will return to the "Fleet Configuration" screen. Record the saved file name in the space provide below as the file will be used in Step 14.
Table 1
Filename
Select the "Machine Security System Uninstall" option from the "Service" menu. This option will cause the Cat ET service tool to display the message that is shown in Illustration 2.
Illustration 2 g03863141
Click on the "Uninstall" button that is located at the lower left-hand corner of the "Machine Security System Uninstall" screen. This action will cause the Cat ET to display the message that is shown in Illustration 3.
Illustration 3 g03863143
Click on the "Yes" button if you want to proceed with the "uninstall" of the Machine Security System. Note: Pressing the "No" button aborts the "uninstall" of the Machine Security System.
Turn the keyswitch and disconnect switch to the "OFF" position. If the machine does not have a disconnect switch, remove the ground cable from the battery.
Remove and retain the tagged master keys from the new ECM. Replace the original MSS3s ECM with the new ECM supplied in the kit.
Turn the disconnect switch to the "ON" position or reattach the ground cable to the battery. Using one of the two new MASTER keys, turn the keyswitch to the "ON" position. Verify the status LED is green. If necessary, re-establish communication between the service tool and the MSS3s ECM.
Select "Copy Configuration" from the "Service" menu, and then select "Fleet/Key Configuration" from the submenu.
Open the document. As the data loads, a progress bar displays. Then, the "Fleet Configuration" message box displays.
Press "OK". The "Fleet/Key Configuration" screen displays with the file data.
Click on the "Program ECM" button. This action displays the fleet key information box.
Illustration 4 g03866637
Append
Click on the "Append" button. Note: Replacing the key list adds the current master access level key to key list. The additional master access level key supplied will not be added. Appending the list adds both master access level keys that came with the MSS3s ECM to the key list that copied to the MSS3s ECM.
Illustration 5 g03863151
Click on the "Yes" button if you are prompted.
Illustration 6 g03866642
ECM Selector dialog box
Note: MSS has a maximum of 255 keys that can be stored at one time. The replacement ECM has two master access level keys pre-programmed into the ECM. Fleet/Key Configuration determines the number of keys slots not programmed on the MSS. You cannot program more keys than the maximum number allowed. If more than 253 keys from the saved file, a message box displays informing you of the number of key slots available.
Perform