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Lucerne
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Buick TSB #PIT4730B
2009 Buick Lucerne
Affected Component: ELECTRICAL SYSTEM
Date Published
NOV 20, 2017
NHTSA TSB #
10125126
TSB Document
MC-10125126-9999.pdf
Summary
This Preliminary Information communication a diagnostic tip if the high speed lan bus is shorted to ground, which can cause the BCM to appear off line.