0394375 JOHNSON FUEL FILTER ASSY.

Table 1
Diagnostic Trouble Codes for the Data Link Configuration Status
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 C data bus is not in the correct format.
The code is logged. Complete the procedure in the order in which the steps are listed.
Table 2
Troubleshooting Test Steps Values Results
1. Check for an Associated -9 Code
A. Establish communication between the electronic service tool and the Electronic Control Module (ECM) for the engine.
B. Check for active diagnostic codes.
Associated Trouble code
Result: An associated -9 code is logged.
Repair: Repair all associated -9 codes before continuing with this procedure. Refer to Troubleshooting, "CAN Data Link - Test".
If a -14 code is still present after resolving the -9 code, proceed to Test Step 2.
Result: An associated -9 code is not logged.
Proceed to Test Step 2.
2. Check the Personality Module Code for Compatibility with the Application
A. Connect to the electronic service tool.
B. Select the ECM connection that is related to the logged code.
C. Check if the personality module code is valid for the application.
Compatible personality module
Result: The code is valid for the application.
Proceed to Test Step 3.
Result: The code is not valid for the application.
Repair: Obtain the correct flash file and update the ECM. Reset all active codes and clear all logged codes. Return the unit to service.
3. Check that the Latest Available Software is Installed
A. Ensure that the latest software is installed on the engine ECM .
Ensure that the software installed is for the correct system voltage (12 V or 24 V).
If necessary, refer to Troubleshooting, "ECM Software - Install" for the correct procedure.
Software
Result: The latest software is not installed.
Repair: Install the latest software. If necessary, refer to Troubleshooting, "ECM Software - Install" for the correct procedure.
Turn the keyswitch to the on position.
If the fault is cleared, return the engine to service.
If the fault is still present, proceed to Test Step 4.
Result: The latest software is installed. The software is for the correct system voltage.
Proceed to Test Step 4.
4. Check the Configuration Parameters
A. Check the configuration parameters to ensure that the parameters are programmed correctly. Refer to Troubleshooting, "Configuration Parameters".
B. Select the ECM connection that is related to the logged code.
Correct configuration parameters
Result: The configuration parameters are programmed correctly.
Proceed to Test Step 5.
Result: The configuration parameters are not programmed correctly.
Repair: Program the parameters to function with the other modules on the data link. Reset all active codes and clear all logged codes. Return the unit to service.
5. Check for Compatibility with Any Other ECM on the Data Link
A. Determine if any other ECM or display on the data link are incompatible.
B. Select the ECM connection that is related to the logged code.
Compatible ECM
Result: The ECMs are not compatible.
Repair:Replace the incompatible ECM with the correct module. Reset all active codes and clear all logged codes. Return the unit to service.
If the procedure did not correct the fault, contact the Dealer Solutions Network (DSN).