Grand Marquis V8-4.6L Flex Fuel (2010)
Information Bus: Diagnostic Trouble Code Descriptions
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 repair procedures such as module reprogramming will 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, refer to
Battery.
NOTE: DTC U1900 sets in a module that is reporting a communication fault from another module on the data bus. The module that reports the fault is
not the problem module.
Communication Network DTC Chart
Module Configuration
Module Configuration
DTC Chart
