1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 232Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 232

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INSTRUMENTATION

Typical Separate Instrumentation Lighting Circuit PositionPositive (+) 12 Volt Power Supply From IgnitionPositive (+) 12 Volt Power Supply From Separate Instrumentation Li