Code result
U0146
Lost Communication with Gateway \"A\"
High severity
What it means
Lost Communication with Gateway "A": the control module has detected this fault condition.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Gateway unpowered (often a fuse on the central electronics)
highOne of the most commonly reported causes for this code — check this first.
Gateway internally failed
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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