TuningBot DTC Database · v4.37.15
1 manufacturer-specific interpretation across 1 manufacturer in the TuningBot DTC database.
ChevroletChevroletThe control module detected a communication fault involving Transmission control module (TCM)/four wheel drive control module, CAN data bus on the vehicle network. This is the manufacturer-specific definition used by Chevrolet.
Network: communication between control units.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Transmission control module (TCM)/four wheel drive control module, CAN data buscommunication malfunction. The control module detected a communication fault involving Transmission control module (TCM)/four wheel drive control module, CAN data bus on the vehicle network. This is the manufacturer-specific definition used by Chevrolet.
U1026 is a manufacturer-specific code. In this database it is documented for: Chevrolet. 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 U1026 is removable in your case.
Understand the system behind this code: Diagnostic Strategy and DTC Logic
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