Code result
U0010
Medium Speed CAN Communication Bus
Moderate severity
What it means
A fault on the medium-speed CAN bus has been detected. This bus (typically 125 kbit/s) connects body and comfort modules — BCM, climate, doors, infotainment. A failure usually disables comfort functions but leaves the powertrain operational.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
MS-CAN line shorted to supply or ground
highOne of the most commonly reported causes for this code — check this first.
One failing comfort module pulling the bus down
mediumA plausible cause — test and verify before replacing parts.
Gateway module routing CAN messages incorrectly
lowLess common, but worth ruling out after the more likely causes.
Related help
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