Mercury MerCruiser 3.0 MPI User Manual

SECTION - 7 STARTING AND ELECTRICAL
90-899883183 DECEMBER 2007 Page 1 / 22
SECTION 7 - STARTING AND ELECTRICAL
Table of Contents
Information and Check List – Installation using 14 pin connection.......................................................................... 2
Battery..................................................................................................................................................................... 2
Battery Cables...................................................................................................................................................2
Power Harness..................................................................................................................................................3
Electrical System Precautions...........................................................................................................................3
Boat Harness and Installation Connections............................................................................................................ 4
Engine Harness and Accessory Power Supply.................................................................................................4
Boat Wiring........................................................................................................................................................4
Single Station ............................................................................................................................................. 4
Dual Station ............................................................................................................................................... 4
Boat Harness Installation Guidelines—MPI Sterndrive.....................................................................................5
Boat Harness Deutsch Connector to Engine ............................................................................................. 5
Key Switch Connector ............................................................................................................................... 5
Trim Switch ................................................................................................................................................ 6
Neutral Switch ............................................................................................................................................ 7
Lanyard Stop Switch .................................................................................................................................. 7
Optional E Stop .......................................................................................................................................... 8
Warning Horn ............................................................................................................................................. 8
Accessory Relay Connection ..................................................................................................................... 8
Additional Relay Kit .................................................................................................................................... 8
Gauge Connection ..................................................................................................................................... 8
CAN P (CAN 1) Connections ................................................................................................................... 10
CAN V (CAN 3) Connection ..................................................................................................................... 10
General Repower Information .................................................................................................................. 10
Transom Harness—MPI .......................................................................................................................... 11
Transom Ground Connection .................................................................................................................. 12
Wiring Diagrams.................................................................................................................................................... 13
Transom Harness—MPI .................................................................................................................................13
Boat Harness...................................................................................................................................................14
Drawing .................................................................................................................................................... 14
Diagram ................................................................................................................................................... 15
Analog Gauge Harness...................................................................................................................................16
Drawing .................................................................................................................................................... 16
Diagram ................................................................................................................................................... 16
Helm Trim Control Switch to Power Trim Pump Harness Assembly (Control Harness Assembly).................17
Power Trim System (Non‑DTS).......................................................................................................................19
14‑Pin Engine Harness Connector..................................................................................................................20
Analog Gauge Interface (AGI)............................................................................................................................... 20
Analog Gauge Interface (AGI) Installation.......................................................................................................20
Configuring Analog/Digital Tachometer Signal through PCM.........................................................................21
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Mercury MerCruiser 3.0 MPI Specifications

General

Brand	Mercury
Model	MerCruiser 3.0 MPI
Category	Engine
Language	English