Section 2 - Getting to Know Your Power Package
90-8M0074347 eng OCTOBER 2012 Page 31
The three‑button power trim control panel is protected by a 20‑amp in‑line fuse.
mc70527-1
Power trim control panel fuse
The MerCathode system has a 5‑amp fuse, which connects to the positive (+) terminal on the controller. If the fuse is open, the
system will not operate, resulting in a loss of corrosion protection.
a - MerCathode
b - Red/purple wire
c - 5‑amp fuse
Electrical System Overload Protection—3.0 TKS
An electrical overload will either open a fuse or open a circuit breaker. You must find and repair the source of the overload
before replacing the fuse or resetting the circuit breaker.
NOTE: In an emergency, when the engine must be operated and the cause for the high current draw cannot be located and
corrected, turn off or disconnect all accessories connected to the engine and instrumentation wiring. Reset the circuit breaker. If
the breaker remains open, the electrical overload has not been eliminated. Further checks must be made on the electrical
system. Contact your authorized Mercury MerCruiser dealer as soon as possible.
A circuit breaker protects the engine wiring harness and the instrumentation power lead. Reset the breaker by pushing the red
button.
Engine wiring harness and instrumentation circuit breaker
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