Code result
U0014
Medium Speed CAN Communication Bus (-) High
Moderate severity
What it means
CAN-Low on the medium-speed bus is shorted to battery voltage. The differential bus cannot work, body and comfort modules drop out of the network.
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
CAN-Low shorted to battery
highOne of the most commonly reported causes for this code — check this first.
Gateway module routing CAN messages incorrectly
lowLess common, but worth ruling out after the more likely causes.
CAN terminating resistor (120 Ω) drifted out of spec
lowLess common, but worth ruling out after the more likely causes.
Related help
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