TuningBot DTC Database · v4.37.15
Manufacturer-specific interpretation for Jeep. All interpretations of U1111
The control module detected a communication fault involving Controller area network (CAN) data bus on the vehicle network. This is the manufacturer-specific definition used by Jeep.
Network: communication between control units.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Controller area network (CAN) data buscommunication malfunction. The control module detected a communication fault involving Controller area network (CAN) data bus on the vehicle network. This is the manufacturer-specific definition used by Jeep.
U1111 is a manufacturer-specific code. In this database it is documented for: Jeep. The same number can mean something different on other brands.
Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether U1111 is removable in your case.
Understand the system behind this code: Diagnostic Strategy and DTC Logic
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