Code result
U0092
CAN Communication Bus \"C\" Performance
Moderate severity
What it means
Bus C shows degraded performance with elevated error counters but has not yet gone bus-off. Sporadic message losses on modules attached to Bus C.
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
Marginal Bus C wiring or connector
highOne of the most commonly reported causes for this code — check this first.
One module on Bus C transmitting marginal frames
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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