4
E
WIRING DIAGRAMS
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999 Page 4E-1
ELECTRICAL SYSTEM
Section 4E - Wiring Diagrams
Table of Contents
Wiring Colors for MerCruiser 4E-2. . . . . . . . . .
Starting and Charging System Wiring
Harness Diagrams 4E-4. . . . . . . . . . . . . . . . .
MCM 454 / 502 MPI 4E-4. . . . . . . . . . . . . . .
MCM 7.4L MPI 4E-6. . . . . . . . . . . . . . . . . . .
MIE 454 MPI Horizon & 8.2L MPI 4E-8. . .
MIE 7.4L MPI 4E-10. . . . . . . . . . . . . . . . . . . .
Fuel Injection Wiring Harness
Diagrams 4E-12. . . . . . . . . . . . . . . . . . . . . . . . .
MEFI 1 MCM 454 / 502 Mag MPI and
MIE 454 Mag MPI Horizon and
8.2L MPI Models 4E-12. . . . . . . . . . . . . . . .
MEFI 2 MCM 7.4L MPI (L-29) Model 4E-14
MEFI 2 MIE 7.4L MPI Model 4E-15. . . . . . .
MEFI 3 MCM 454 / 502 Mag MPI and
MIE 454 Mag MPI Horizon and
8.2L MPI Models 4E-16. . . . . . . . . . . . . . . .
MEFI 3 MCM 7.4L MPI Bravo and
MIE 7.4L Inboard 4E-17. . . . . . . . . . . . . . . .
Instrumentation Harness Diagrams 4E-18. . . .
MCM (Sterndrive) 4E-18. . . . . . . . . . . . . . . . .
MIE (Inboard) 4E-19. . . . . . . . . . . . . . . . . . . .
Dual Station Wiring (Using a Neutral Safety
Switch in Only One Remote Control) 4E-20
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