Warning System - Mercury 40 CT Maintenance And Installation Manual

Warning System

WARNING HORN SIGNALS
The outboard warning system incorporates a warning horn inside the boat.
Remote control models will have the warning horn located inside the remote
control or connected to the ignition key switch. Tiller handle models will have
the warning horn located in the ignition key panel.
a
a - Horn inside remote control
b - Horn connected to ignition key switch
c - Horn in ignition key panel
There are two types of warning horns to alert the operator of an active problem
within the engine's operating system.
1. Continuous six second beep: Indicates a critical engine condition.
Depending on the condition, the Engine Guardian System may engage
and protect the engine by limiting its power. You should return to port
immediately and contact your servicing dealer.
2. Intermittent short beeps for six seconds: Indicates a noncritical engine
condition. This condition does not require immediate attention. You may
continue using your boat, however, depending on the nature of the
problem, the engine's power may be limited by the Engine Guardian
System (see Engine Guardian System following) to protect the engine.
You should contact your servicing dealer at your earliest convenience.
It is important to note that in either of the above scenarios, the horn will only
sound one time. If you key the engine off and restart it, the horn will sound
again, one time, if the fault is still present. For visual display of the specific
engine functions and additional engine data, refer to SmartCraft Product
information, following.
The operator is able to correct a couple engine problems indicated by the
warning horn. These conditions are as follows:
• Cooling system (water pressure or engine temperature) problem. The
warning horn will sound Intermittent short beeps for six seconds. Stop the
engine and check the water intake holes in the gearcase for obstruction.
• Low oil pressure problem. The warning horn will sound a continuous six
second beep. Stop the engine and check for low engine oil level. Refer to
Fuel and Oil – Checking and Adding Engine Oil.
FEATURES AND CONTROLS
b
c
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