CONNECTOR AS 3328555 - Caterpillar

Illustration 1 g02163817
Schematic of the Cat data link
Note: The illustration for the Cat Data Link connections may not represent all of the connections for all of the components of all of the machines that are covered by this manual. Refer to the electrical system schematic for your machine in order to verify the Cat Data Link connections.This failure results in codes that are logged against an ECM that cannot be explained. The Drivetrain ECM cannot communicate with the"Advisor ECM" or the ECM appears to work intermittently. Test Step 1. VERIFY THE HARDWARE AND THE SOFTWARE PART NUMBERS.
Verify that the following information is correct:
The part number of the "implement onboard flash software"
The part number of the "advisor ECM flash software"
The part number of the "implement ECM"
The part number of the "advisor ECM" Note: Consult the Business Unit that produces the product for the correct part numbers of the configuration software.Expected Result:All part numbers are correct. Results:
OK - All part numbers are correct. Proceed to test step 2.
NOT OK - All part numbers are NOT correct. Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this procedure again. If the cause of the diagnostic code is not found, replace the ECM. See Troubleshooting, "Electronic Control Module (ECM) - Replace".STOPTest Step 2. INSPECT THE HARNESS CONNECTIONS.
Turn the disconnect switch to the OFF position.
Inspect all harness connections that are related to the Cat Data Link. Make sure that the connectors are clean and tight.
Check the connectors for proper mating.
Check the wires at the connector.
Check each wire for nicks or signs of abrasion in the insulation.
Check for moisture at the connector.
Check the connectors for dirty contacts or corroded contacts.
Check each pin and each socket of the machine harness connectors. 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 3. CHECK FOR SHORTS TO GROUND.
The disconnect switch remains in the OFF position.
Disconnect the machine harness from all electronic control modules that use the CATdata link.
At the machine harness for the Drivetrain ECM, measure the resistance between frame ground and connector contacts J1-10 (wire 893-GN(Green)) and J1-20 (wire 892-BR(Brown)) of the Cat 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 harness has failed. Repair: There is a short between frame ground and the Cat Data Link circuit in the machine harness. Repair the machine harness or replace the machine harness. STOPTest Step 4. CHECK FOR A SHORT TO THE +BATTERY CIRCUIT.
The disconnect switch remains in the OFF position.
All related electronic control modules remain disconnected from the machine harness.
At the machine harness connector for the Drivetrain