What does code U0061 mean?

Q: What does code U0061 mean?

Vehicle Communication Bus D (-) Low. U0061 indicates that the vehicle's primary communication bus, often called the CAN (Controller Area Network) bus, has a fault on its low-speed negative line, designated Bus D (-). The control module that set this code detected an abnormally low voltage or a short-to-ground condition on that specific wire, which can disrupt communication between multiple electronic modules.

DTC codes / U00xx · Network wiring and bus faults / U0061

U0061Vehicle Communication Bus D (-) Low

U0061 indicates that the vehicle's primary communication bus, often called the CAN (Controller Area Network) bus, has a fault on its low-speed negative line, designated Bus D (-). The control module that set this code detected an abnormally low voltage or a short-to-ground condition on that specific wire, which can disrupt communication between multiple electronic modules.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaNetwork wiring and bus faults

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.