Mercury MerCruiser MCM 454 Mag MPI Service Manual page 147

SERVICE MANUAL NUMBER 23
5. Connect wires to MerCathode controller assembly as shown. Apply a thin coat of Quick-
6. Connect battery cables to battery by FIRST connecting positive (+) battery cable
NOTE: Spray terminals with a battery connection sealant to help retard corrosion.
Index
90-861326--1 MARCH 1999
Downloaded from https://needmanual.com/
MCM MODELS - BRAVO AND BLACKHAWK DRIVES WITH DRIVESHAFT EXTENSION
silver Liquid Neoprene to all connections.
a - ORANGE Wire - From Electrode On Transom Assembly
b - RED/PURPLE Wire - Connect (Other End) to Positive (+) Battery Terminal
c - BLACK Wire - From Engine Harness
d - BROWN Wire - From Electrode on Transom Assembly
(usually RED) to positive (+) battery terminal. Tighten clamp securely. Then, connect
negative (–) battery cable (usually BLACK) to negative (–) battery terminal. Tighten
clamp securely.
c
a d
b
22232
Page 2B-15