1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 352Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 352

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DIAGNOSTICS

J1-9 J2-32 J2-1

CIRCUIT DESCRIPTION:
The on-board diagnostic system check must be the starting point for any diagnosisBefore using this procedure, check the