GEAR (27 teeth) 3P6348 - Caterpillar

Illustration 1 g01196560
Schematic of the Cat Data Link CircuitThis diagnostic code is recorded when the power train ECM is not sending the necessary parameters to the implement ECM at the proper rate. The update rate for parameters that are generated by the power train ECM is not correct. The communication failure may be due to disconnected connectors or a faulty wiring harness.The possible causes of this diagnostic code are listed:
The power train ECM has the incorrect software installed.
The implement ECM has the incorrect software installed.
Incompatible software may be installed.
The fuse for the power train ECM may have failed.System Response:The machine response is listed:
Some implement functions may not work properly.Note: Ensure that the diagnostic code indicator is active and that the diagnostic code is active.Test Step 1. CHECK THE POWER TRAIN ECM AND THE IMPLEMENT ECM FOR PROPER SOFTWARE VERSIONS.
Use Caterpillar Electronic Technician (ET) in order to verify that the versions of software are compatible.Expected Result:The proper versions of software are installed on the implement ECM and the power train ECM.Results:
YES - The versions of software are compatible. Proceed to Test Step 2.
NO - The proper software is not installed.Repair: Flash the proper software to the appropriate ECM. Cycle the key switch in order to initialize the new software. Ensure that the diagnostic code is no longer active. Stop.Test Step 2. RECHECK FOR DIAGNOSTIC CODES.
Ensure that CID 0596 FMI 14 is active.Expected Result:The diagnostic code is inactive. The diagnostic code indicator is inactive. Results:
YES - The diagnostic code indicator and the diagnostic code are inactive.Repair: Clear the diagnostic code. Stop.
NO - The diagnostic code is active.Repair: Ensure that the proper software is installed before replacing the ECM. If the software is correct, replace the implement ECM. See Testing and Adjusting, "Electronic Control Module (ECM) - Replace". If the implement ECM was just replaced, install a new power train ECM. See Testing and Adjusting, RENR8846, "Electronic Control Module (ECM) - Replace" for the machine that is being serviced. Stop.