Communications Network

Communications Network

DTC Charts

NOTE: Network DTCs (U-codes) are often a result of intermittent concerns such as damaged wiring or low battery voltage occurrences. Additionally, vehicle service procedures such as module reprogramming often set network DTCs. Replacing a module to resolve a network DTC is unlikely to resolve the concern. To prevent repeat network DTC concerns, inspect all network wiring, especially connectors. Test the vehicle battery condition, refer to Battery.

U0002-U0140:

U0140-U0155:

U0155-U0184:

U0184-U0197:00:

U0197:00-U0422:00:

U0423:00-U3000:88: