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Buick TSB #23-NA-189
2020 Buick Regal TourX
TSB Document:
Affected Component: EQUIPMENT
- Summary
- This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.
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