Mercury MerCruiser MCM 454 Mag MPI

GENERAL SYSTEM DIAGNOSTICS
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999 Page 5E-17
a-To Injector Fuse
b-Injectors 2,3,5,8
c-To Ignition Relay
d-Injectors 1,4,6,7
e-Fuel Pump Fuse
f-Fuel Pump Relay
g-Fuel Pump
h-To ECM/BAT Fuse
i-Idle Air Control Motor
j-Data Link Connector
k-Injector Driver
l-Injector Ground
m-Fuel Injector Ground
n-Injector Driver
o-Port Fuel Jumper
p-Port Fuel Jumper
q-Fuel Pump Driver Relay
r-IAC “A” high
s-IAC “A” low
t-IAC “B” low
u-IAC “B” high
v-Serial Data
w-Master/Slave
x-Diagnostic Test
y-MIL Lamp
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Index