ARM-BAIL 3535195 - Caterpillar

Illustration 1 g01541733
Connections of the CAN Data LinkThis diagnostic code is recorded when the Machine ECM stops receiving information on the CAN Data Link.Note: The resistance of the wires for the CAN Data Link should measure approximately 60 ohms between circuit components.The possible causes of the diagnostic code are listed below:
A short has occurred in the machine harness.
A connector on the harness connector has been damaged.
An open connection exists in the 30 amp fuse for the Engine ECM.
An open exists in the machine harness.Test Step 1. INSPECT THE HARNESS CONNECTIONS.
Turn the disconnect switch to the OFF position.
Inspect all harness connections that are related to the CAN Data Link. Make sure that the connectors are clean and tight.
Check the connectors for proper mating. Ensure that all the seals are present and in place.
Check the harness for signs of damage or abrasion.
Check the wires at the connector. Ensure that the wires are secured tightly into the connector. Take care not to pull the wire out of the connector.
Check the exposed wires at the connectors for nicks or signs of abrasion.
Check for moisture inside the connector.
Check the connectors for dirty contacts or corroded contacts.
Check each pin and each socket of the machine harness connectors. Ensure that the contacts are properly installed. The contacts should mate correctly when the two pieces of the connector are placed together. Expected Result:The machine harness connectors are tight and free of corrosion. Results:
OK - The machine harness connectors are tight and free of corrosion. Proceed to Test Step 3.
NOT OK - The machine harness connectors are in need of repair.Repair: Repair the machine harness or replace the machine harness. STOPTest Step 2. CHECK THE CONTINUITY OF THE FUSE FOR THE MACHINE ECM
The disconnect switch remains in the OFF position.
Remove the 30 amp fuse for the Engine ECM from the fuse panel. The fuse is located under the "loader" joystick. Locate the plastic panel that is secured by two Torx screws under the "loader" joystick.
Place the leads of a digital multimeter across the contacts of the fuse. Set the meter to read ohms and note the measurement.Expected Result:The resistance of the fuse is less than 5 ohms.Results:
OK - The resistance of the fuse is less than 5 ohms. The fuse is correct. Proceed to Test Step 3.
NOT OK - The resistance of the fuse is more than 5 ohms. Repair: Replace the fuse. Ensure that the fix has corrected the problem.STOPTest Step 3. CHECK FOR SHORTS TO GROUND
The disconnect switch remains in the OFF position.
Disconnect the machine harness connectors from all electronic control modules that use the CAN Data Link.
At the machine harness for the Machine ECM, measure the resistance between frame ground and connector contacts J2-67 (wire F711-GN) and J2-68 (wire F712-GY) of the data link circuit. Expected Result:The resistance is greater than 5000 ohms. Results:
OK - The resistance is greater than 5000 ohms. The harness circuit resistance is correct. Proceed to Test Step 4.
NOT OK - The resistance is less than 5000 ohms. The machine