PLATE AS 4994586 - Caterpillar

Table 1
Diagnostic Trouble Codes    
J1939 Code    Code Description    Comments    
639-14     J1939 Network #1 : Special Instruction     The data received from the CAN A data bus is not in the correct format.
The code is logged.    
1231-14     J1939 Network #2 : Special Instruction     The data received from the CAN B data bus is not in the correct format.
The code is logged.    The diagnostic code for the special instruction is logged in order to report the configuration status of the data link. The diagnostic code for the special instruction does not check the physical condition of the data link.
The personality module code is incorrect.
The configuration of the parameter is invalid.
There is an incorrect module or display on the data link.
The data link wiring is damaged.Test Step 1. Check for an Associated XXXX-9 Diagnostic Code
Establish communication between the electronic service tool and the Electronic Control Module (ECM) for the engine.
Check for an XXXX-9 code that is associated with the reported XXXX-14 code.Results:
An associated XXXX-9 code is logged. - Repair: Repair all associated XXXX-9 codes before continuing with this procedure. Refer to Troubleshooting, "Data Link Circuit - Test". If an XXXX-14 code is still present after resolving the XXXX-9 code, proceed to Test Step 2.
An associated XXXX-9 code is not logged. - Proceed to Test Step 2.Test Step 2. Check the Flash File for the Engine ECM
Connect the electronic service tool.
Select the engine ECM.
Check that the latest flash file is installed in the engine ECM.Results:
The latest flash file is installed. - Proceed to Test Step 3.
The latest flash file is not installed. - Repair: Perform the following procedure:
Install the latest version of the correct flash file into the engine ECM. Refer to Troubleshooting, "Flash Programming".
Reset all active codes and clear all logged codes.
Check that the fault has been eliminated. If the fault is still present, repeat the procedure from Test Step 1.Test Step 3. Check the Configuration Parameters in the Engine ECMCheck that the correct configuration parameters are programmed into the engine ECM. Refer to Troubleshooting, "Programming Parameters" section.Results:
The configuration parameters are programmed correctly. - Proceed to Test Step 4.
The configuration parameters are not programmed correctly. - Repair: Perform the following procedure:
Program the parameters to function with the other modules on the data link.
Reset all active codes and clear all logged codes.
Confirm that the fault has been eliminated. If the fault is still present, proceed to Test Step 4.Test Step 4. Check for Compatibility with Other Modules