KIT-SEAL 5044281 - Caterpillar

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Terminal locations at the control box for the front harness
(Terminal 13) Global CAN data link +
(Terminal 15) Global CAN data link −
(Terminal 18) Global CAN data link shield
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Terminal locations at the control box connector for the front harness that are for the data link
(Terminal 4) Local CAN data link +
(Terminal 6) Local CAN data link −
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Terminal locations at the connector for the temperature control module that are for the data link
(Terminal 4) Local CAN data link +
(Terminal 6) Local CAN data link −
(Terminal 9) Local CAN data link shield
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Terminal locations at the connector for the CAN shield jumper
(Terminal 1) Local CAN data link shield
(Terminal 2) −Battery
Pull on the wires that are associated with the data links. This verifies that the wire is properly crimped to the terminal and that the terminal is properly inserted into the connector. Expected Result:All connectors, pins and sockets are completely coupled and/or inserted and the harness and wiring are free of corrosion, of abrasion or of pinch points.Results:
OK - The wiring and the connectors appear to be OK. Proceed to Test Step 2.
Not OK - There is a problem with the wiring or with a connector.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the connector seals are properly in place and ensure that the connectors are completely coupled. Verify that the problem is resolved.STOPTest Step 2. Bypass the Wiring for the Data Link
Connect the 167-9225 Harness (SERVICE TOOL ADAPTER) to the J1 connector, to the 207-6845 Adapter Cable As, and to the battery.
Try to establish communication between Cat ET and the ECM. Expected Result:Cat ET and the ECM communicate.Results:
OK - Cat ET and the ECM communicate.Repair: Cat ET and the ECM communicate when the bypass harness is installed. However, communication cannot be established via the engine's wiring. Disconnect the electrical connector from each of the control modules that is on the specific data link one at a time in order to isolate the problem. Try to establish communication between Cat ET and the ECM after disconnecting each module.The problem is in the control module if disconnecting the module allows Cat ET and the ECM to communicate. If a module is suspect, replace the module. Verify that the problem is resolved.The control module is OK if the problem remains and when the module is disconnected.STOP
Not OK - Cat ET and the ECM do not communicate.Repair: Communication between Cat ET and the ECM is not established when the bypass harness is installed. Temporarily connect a test ECM. Refer to Troubleshooting, "Test ECM Mode". Verify that the problem is resolved.Connect the original ECM and verify that the problem returns. Replace the original ECM.STOPTest Step 3. Check the Wiring for the Data Links for a Short Circuit
Turn the power disconnect switch to the OFF position.
Disconnect the negative cable from the battery.
Disconnect the P1 and P2 ECM connectors.
Measure the resistance between the following terminals:
P1-8 (Cat Data Link +) and P1-61 (-Battery)
P1-9 (Cat Data Link