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Mercury MerCruiser MCM 502 Mag MPI

Mercury MerCruiser MCM 502 Mag MPI
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GENERAL SYSTEM DIAGNOSTICS
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999 Page 5E-37
a-IC module
b-Water Temp Sender For Gauge
c-To Drawing 4 of 4
d-Harness Connector
e-Ignition Coil
f-Gear Lube Switch
g-Oil Pressure Switch
h-ECM Ground
i-ECM Ground
j-Ignition Control Signal
k-Ignition Control Reference High
l-Ignition Control Bypass
m-Ignition Control Reference Low
n-Coolant Over Temperature And Discrete Switch Output
o-Not Used
p-Discrete Switch Inputs (J1–4 for earlier models and J1–6 for later models)
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