LINES GP-WATER 2500463 - Caterpillar

the electronic service tool will not connect to the "Web Configuration Home Page", use the following diagnostic steps to determine the fault.
Connect the 425-6889 Cable As to the service port of the PLE702 Network Manager and your laptop. Refer to Systems Operation Troubleshooting Testing and Adjusting, M0076820, "Service Tools" for more information on accessing and using the "Web Configuration Home Page".
If the service tool connects, return the equipment to service.
If the service tool will not connect, proceed to Step 2.
With the 425-6889 Cable As connected to the PLE702 Network Manager, open "WinFlash" through CAT ET.
If "WinFlash" opens, proceed to Step 9.
If "WinFlash" does not detect an ECM, proceed to Step 3.
With the 425-6889 Cable As connected to the pc, check the lights on the Ethernet port on the pc.
If the Ethernet port lights are on or blinking, proceed to Step 9.
If the Ethernet port lights remain off, proceed to Step 4.
Connect the 317-7484 Communication Adapter Gp to the equipment and open CAT ET .
If the PLE702 Network Manager is on the data link, proceed to Step 7.
If the PLE702 Network Manager is not on the data link, proceed to Step 5.
Use a voltmeter to check for system voltage on the PLE702 Network Managers key switch power input. On the X-Cirlce connector, connect the voltmeters positive lead to pin 7 (key switch) and connect the voltmeters negative lead to pin 37 (battery -).
If there is system voltage and a good ground going to the PLE702 Network Manager, proceed to Step 7.
If there is no power or ground to the PLE702 Network Manager, proceed to Step 6.
Inspect the wiring from the equipment to the PLE702 Network Manager. Use the following information to help inspect and diagnose a potential wiring issue:
Systems Operation, Troubleshooting, Testing and Adjusting, M0076820, "Wiring Harness (Short Circuit) - Test"
Systems Operation, Troubleshooting, Testing and Adjusting, M0076820, "Wiring Harness (Open Circuit) - Test"
Wiring has a problem. Repair wiring and return the equipment to service.
Wiring is OK. Proceed to Step 7.
Inspect the wiring from the PLE702 Network Manager to the service port connector. Use the following information to help inspect and diagnose a potential wiring issue:
Systems Operation, Troubleshooting, Testing and Adjusting, M0076820, "Wiring Harness (Short Circuit) - Test"
Systems Operation, Troubleshooting, Testing and Adjusting, M0076820, "Wiring Harness (Open Circuit) - Test"
Wiring has a problem. Repair wiring and return the equipment to service.
Wiring is OK. Proceed to Step 8.
Replace the PLE702 Network Manager. Refer to System Operation Testing and Adjust, M0076820, "ECM - Replace". Connect to the "Service Dashboard" and perform the "Communication Check".
If the "Communication Check" is successful, return the equipment to service.
If the "Communication Check" is not successful, proceed to Step 9.
Refer to the "Ethernet Direct Connection Troubleshooting" support in Cat ET.
Open Cat ET.
Open the "Help" menu and select "Troubleshooting".
Follow the steps in the "Ethernet Direct Connection" section.