B0056 By John SmithPosted on June 6, 2023August 14, 2023 ContentsDefinition of check engine code B0056:Generic (Common for all car manufacturers):GM:Definition of check engine code B0056:Generic (Common for all car manufacturers):Third Row Left Seatbelt Sensor (Subfault)GM:RF/Passenger pre-tensioner deployment loop resistance high Share this:Related posts:B0047B0006B0001