Mercury MerCruiser Product Applications Manual page 128

ENGINE HARNESS INSTALLATION
Avoid fire hazard. The accessory wire on the 14-pin engine wiring harness cannot exceed
15 amp current draw. An optional kit must be used for accessory power or switched
power.
IMPORTANT: The accessory wire in the 14-pin harness will not support amperage in
excess of 15-amps. For protection, the main power relay fuse may blow if an excess of
15-amps is applied. Refer to the Mercury Precision Parts Accessories Guide for an optional
accessory power relay kit that will accommodate higher amperage draw.
1. Route the instrumentation wiring harness back to the engine, making sure that the
harness does not rub or get pinched. If an extension harness is required, be sure to
secure the connection properly.
2. Fasten the harnesses to the boat at least every 45.7 cm (18 in.) , using appropriate
fasteners.
3. Models with a 10-pin harness or SmartCraft Harness: Place the hose clamp over
the instrumentation wiring harness.
4. Connect the instrumentation wiring harness to the engine harness plug. Secure the
connection with the hose clamp.
5. Tighten the hose clamp to secure the wiring harness to the engine harness plug.
6. Models with a 14-pin Harness: Connect the instrumentation wiring harness to the
engine harness plug.
a.
b.
90-863758060 AUGUST 2006
a
Typical 10-pin harness
a - Engine harness plug
Connect the depth transducer connector to the DLC/Depth transducer connector
on the engine harness.
Connect the paddle wheel/tank level connector.
CAUTION
!
8422
Electrical System
Page 8A-9