C15 and C18 Engines for Caterpillar Built Machines Caterpillar

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.

Use this procedure in order to troubleshoot a diagnostic code for a special instruction. Use this procedure if one of the following diagnostic codes are active.

Note: Some of the following codes may not be applicable for certain applications.

Table 1

Diagnostic Trouble Codes
CDL Code	J1939 Code	Code Description (code descriptions may vary)	Comments
246-14	625-14	Proprietary CAN Data Link: Special Instruction	The code is logged.
247-14		SAE J1939 Data Link: Special Instruction	The code is logged.
248-14		CAT Data Link: Special Instruction	The code is logged.
296-14		Transmission Control : Special Instruction	The code is logged.
533-14		Brake Control : Special Instruction	The code is logged.
1273-14		Chassis Control Module : Special Instruction	The code is logged.

Table 2

Troubleshooting Test Steps	Values	Results
1. Check for an Associated -9 Code A. Establish communication between the Caterpillar Electronic Technician (ET) and the Electronic Control Module (ECM) for the engine. B. Download a "Warranty Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.	Associated Trouble code	Result: An associated -9 code is logged. Repair all associated -9 codes before continuing with this procedure. Refer to Troubleshooting, "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 Cat ET. 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. 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 the Configuration Parameters A. Check the configuration parameters in order to ensure that the parameters are programmed correctly. Refer to Troubleshooting, "Configuration Parameters".	Correct configuration parameters	Result: The configuration parameters are programmed correctly. Proceed to Test Step 4. Result: The configuration parameters are not programmed correctly. 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.
4. Check for Compatibility with Any Other ECM on the Data Link A. Use the as shipped information found in SIS web TMI to determine if any other ECM or display on the data link are compatible.	Compatible ECM	Result: The ECMs are not compatible. Replace the incompatible ECM with the correct module. Reset all active codes and clear all logged codes. Return the unit to service.

Complete the procedure in the order in which the steps are listed.

If the procedure corrected the issue, return the engine to service.

If the procedure did not correct the issue, Contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).