The control module did not receive the expected response for Timeout Multimedia CAN Message(Vehicle Speed) within the allowed time. This is the manufacturer-specific definition used by Hyundai.
TuningBot DTC Database · v4.37.14
U1981 Timeout Multimedia CAN Message(Vehicle Speed)
1 manufacturer-specific interpretation across 1 manufacturer in the TuningBot DTC database.
Hyundai
1 interpretationRelated and nearby codes
How to read U1981
Network: communication between control units.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about U1981
What does U1981 mean?
Timeout Multimedia CAN Message(Vehicle Speed). The control module did not receive the expected response for Timeout Multimedia CAN Message(Vehicle Speed) within the allowed time. This is the manufacturer-specific definition used by Hyundai.
Is U1981 generic or manufacturer-specific?
U1981 is a manufacturer-specific code. In this database it is documented for: Hyundai. The same number can mean something different on other brands.
Can TuningBot remove U1981 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 U1981 is removable in your case.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
