CAN data bus - communication malfunction
Chevrolet · network
Data confidence62%
The control module detected a communication fault involving CAN data bus on the vehicle network. This is the manufacturer-specific definition used by Chevrolet.
Possible causes
Wiring
BCM
ECM
antilock brake system (ABS)/traction control system (TCS)
Manufacturer-defined range: the meaning can differ between brands.
000
Specific fault index within the subsystem.
Frequently asked questions about U1000
What does U1000 mean?
CAN data bus - communication malfunction. The control module detected a communication fault involving CAN data bus on the vehicle network. This is the manufacturer-specific definition used by Chevrolet.
Is U1000 generic or manufacturer-specific?
U1000 is a manufacturer-specific code. In this database it is documented for: Chevrolet. The same number can mean something different on other brands.
Can TuningBot remove U1000 at file level?
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 U1000 is removable in your case.