DISC-TIMING 3489328 - Caterpillar

This diagnostic trouble code is recorded when the software location code for the Transmission ECM does not match the hardware location codes.The probable cause of this diagnostic trouble code is software. The wrong software has been flashed into the ECM.Note: Do not change the hard wired location code if you have flashed the incorrect software into the control.Before performing this procedure, inspect the harness connectors that are involved in the circuit. Poor connections can often be the cause of a problem in an electrical circuit. Verify that all of the connections in the circuit are clean and that all the connections are secure. If a problem with a connection is found, correct the problem and verify that this diagnostic code is active before performing this procedure. Each connector contact should withstand 45 N (10 lb) of pull. Each wire should remain in the connector body. This test checks whether the wire was properly crimped in the contact and whether the contact was properly inserted into the connector. Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 1326 FMI 02 is active before performing this procedure.Note: Use a digital multimeter for the measurements in this procedure.Test Step 1. VERIFY THE HARDWARE AND SOFTWARE PART NUMBERS.
Verify whether the part number of the software for the ECM is correct. Expected Result:Consult the Business Unit that is producing the product for the correct configuration for the machine.Results:
OK - All part numbers are correct for the ECM. Proceed to test step 2.
NOT OK - All part numbers are not correct. The installed ECM has the wrong part number or incorrect configuration software is installed.Repair: Replace the ECM with a module that has the correct part number or flash the correct configuration software. See Testing and Adjusting, "Electronic Control Module (ECM) - Flash Program".STOPTest Step 2. VERIFY THAT THE LOCATION CODE MATCHES THE STATUS SCREEN OF THE CATERPILLAR ELECTRONIC TECHNICIAN.
Check the status screen of the Caterpillar Electronic Technician (Cat ET) in order to verify the location code . Expected Result:The location codes in the Cat ET are correct.Results:
OK - The location codes in the Cat ET are correct. Proceed to test step 3.
NOT OK - The location codes are not correct. Repair: Repeat this test step in order to verify that the software and hardware part numbers are correct. Proceed to Test Step 3 if the part numbers are correct.Test Step 3. INSPECT THE HARNESS CONNECTIONS.
Turn the key start switch and the disconnect switch to the OFF position.
Inspect the harness connectors. Clean the contacts of the harness connectors and check the wires for damage to the insulation. Damage to the wires may be caused by excessive heat, battery acid, or chafing. Make sure that the connectors are tight.
Check for the proper mating of the connector.
Check all wires at the connector.
Check for moisture at the connector.
Check for dirty contacts