TURBOCHARGER GP 3763825 - Caterpillar

Illustration 1 g01728674
Schematic of the Cat Data Link Circuit
This diagnostic code is recorded when the Engine ECM is not sending the necessary parameters to the Brake ECM at the proper rate. The update rate for parameters that are generated by the Engine 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 below:
The incorrect software is installed on the Engine ECM.
The incorrect software is installed on the Brake ECM.
Incompatible software may be installed.
The fuse for the Engine ECM may have failed.System Response:The machine response is listed below:
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 ENGINE ECM AND THE BRAKE ECM FOR PROPER SOFTWARE VERSIONS.
Use Cat® Electronic Technician (Cat® ET) to verify that the versions of software are compatible.Expected Result:The proper versions of software are installed on the Engine ECM and the Brake 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 start switch to initialize the new software. Ensure that the diagnostic code is no longer active.STOPTest Step 2. RECHECK FOR DIAGNOSTIC CODES.
Ensure that the CID 0590 FMI 14 diagnostic code 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. If the software is correct, replacement of the Brake ECM may be necessary. Prior to replacing an ECM, always contact your dealership for possible consultation with Caterpillar. This consultation can greatly reduce the repair time. See Testing and Adjusting, "Electronic Control Module (ECM) - Replace". If the Brake ECM was recently replaced , replacement of the Engine ECM may be required.STOP