Smartcraft System-Power Shut Down; Warning Horn Signals - Mercury TDI 3.0L Operation And Maintenance Manual

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Section 1 - Getting to Know Your Power Package
The following digital instruments may be included with your power package.
Item
a
Oil pressure gauge
b
Voltmeter
c
Water temperature gauge
d
Fuel gauge
SmartCraft System—Power Shut Down
IMPORTANT: When the key switch is turned off, SmartCraft information is communicated to the TDI vessel adapter assembly.
Allow a minimum of 15 seconds for the communication to be completed before turning the battery switch to the off position or
disconnecting battery power. Failure to allow the communication to be completed, may cause an error message to display on
the SmartCraft device at the next engine start sequence. Waiting 30 seconds before removing battery power will ensure the
communication is unrestricted and thorough. To erase the error message, turn the key switch to the off position and wait one
minute before starting the engine.

Warning Horn Signals

When the key switch is turned to the on position, the horn will turn on for a moment as a test to indicate the horn is working.
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 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 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.
A few of the noncritical conditions indicated by the intermittent short beeps for six seconds can be corrected by the operator.
These operator correctable conditions are as follows:
Water in the fuel filter. Refer to Maintenance – Water‑Separating Fuel Filter.
Cooling system (water pressure or engine temperature) problem. Stop the engine and check the water intake holes in the
lower unit for obstruction.
Low engine oil level. Refer to Maintenance – Engine Oil.
Page 6
a
b
System Link digital gauges
Gauge
c
d
Indicates
Engine oil pressure
Battery voltage
Engine operating temperature
Quantity of fuel in tank
63723
37925
90-8M0133568
JUNE 2017
eng

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