Code result
U0141
Lost Communication with Body Control Module A
Moderate severity
What it means
A second body control module (BCM "A") has dropped off the bus. Several comfort, lighting and locking functions stop working until the BCM is back online.
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
BCM A unpowered
highOne of the most commonly reported causes for this code — check this first.
CAN wiring to BCM A broken
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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