Mercury MerCruiser MCM 454 Mag MPI Service Manual page 638

SERVICE MANUAL NUMBER 23
MEFI 3 - ECM Wiring
From
INJ/
ECM
FUSE
10 AMP
439 PNK
15A
From
B+
2
339 PNK
15A
IDLE AIR
CONTROL
(IAC) VALVE
FROM
ECM/BAT
FUSE
15A
440 ORN
76079
Index
90-861326--1 MARCH 1999
Downloaded from https://needmanual.com/
PAGE 1 of 4
INJECTORS 2, 3, 5, 8
481
BLK
INJECTORS 1, 4, 6, 7
481
BLK
439 PNK
87a 30 85
86 87
461 ORN
916 YEL
DLC
450 BLK
467 DK BLU
468 DK GRN
465 DK GRN/WHT
441 BLU/WHT
442 BLU/BLK
443 GRN/WHT
444 GRN/BLK
150 BLK
451 BLK/WHT
419 BRN/WHT
GENERAL SYSTEM DIAGNOSTICS
ECM
J1-1
J1-17
J1-23
150
BLK
J1-28
J1-12
J1-11
J1-27
J1-32 SERIAL DATA
J2-21 MASTER/SLAVE
DIAGNOSTIC "TEST"
J2-22
TERMINAL
MALFUNCTION INDICATOR
J1-9
LAMP
Page 5E-45