TestNav 8 Troubleshooting Current: Error Codes Error Codes Errors are listed in numerical order. Not all numbers are used.Because the user interface may differ across operating systems, screenshots are not provided. 1000s - Connectivity/Save Warning and Error Codes 2000s - Application Warning Messages 3000s - Application Error Messages 5000s - Authentication Errors 6000s - Program State and Network Errors 7000s - Program Navigation and Network Errors 8000s - Pearson Server Errors 9000s - Pearson API Errors 10000s - Scoring CAT Server Warnings 11000s - Scoring CAT Server Warnings and Errors 12000s - TestNav Auto Updates 4000s - not currently usedTiny link: https://support.assessment.pearson.com/x/DwACAQ ×