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GMC TSB #PIT5743C

2020 GMC Sierra 3500

TSB Document:

MC-10231640-9999.pdf

Affected Component: ELECTRICAL SYSTEM

Summary: This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E. Main cause is aftermarket electrical devices spliced into the ignition main fuses.

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Date Published: JAN 12, 2023
NHTSA TSB #: 10231640

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