GUARD AS 2685945 - Caterpillar

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The following screen should appear once program "flashing" is complete.
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Click "OK".
The "Connect" icon should change from being grayed out to active. Click the "Connect" icon on the tool bar in order to return to Cat ET. Refer to the arrow in Illustration 9. (You may also select "File" on the menu bar, then click "Connect" from the drop-down menu.) PL321SR System
Flash Program the PL121 Radio Module
WinFlash is used in order to load the software. The following steps explain the process in order to flash program the PL300.
Select the "ECM Summary"Screen.
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PL300 "System ECM Summary" Screen
In a PL321 system, in order to flash the PL121SR (radio) by using the PL300 ECM, select "Service" menu bar and then select "Subsystem Module Programming".
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"Subsystem Module Programming" Screen
The "Subsystem Module Programming" screen should appear.
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Click on "Submodule".
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Click on the correct flash file for the PL121SR to load.
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"File Select" Screen
Click the "Begin Progamming" button that is located on lower right side of screen.
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The following screen should appear while "flashing" is in progress.
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The following screen should appear once program "flashing" is complete.
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Click "OK" in order to acknowledge.Flash the PL300 ECM
In order to flash the PL300 ECM in a PL321 system, select the ECM.
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Select the file.
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Click "Begin Flash"
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The following screen should appear while the program is being loaded.
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