Mercury 225 EFI User Manual

WIRING DIAGRAMS
Page 2D-18 90-884294 OCTOBER 2001
Warning System Signals
NOTE: The warning system signals which includes audible and visual indicator involving
the horn and gauges will identify the potential problems listed in the chart
Problem Horn Monitor Display Guardian Acti-
vated
Engine Speed
Reduction Activated
Power Up/System Check Single
Beep
Yes N/A No
Low Oil 4 Beep... 2
Minutes Off
Yes No No
Oil Pump Electrical
Failure
Yes Yes Yes
(See Guardian System)
Over Heat Continuous
Beep
Yes Yes Yes
(See Guardian System)
Water In Fuel 4 Beep... 2
Minutes Off
Yes No
Over Speed Continuous
Beep
Yes Yes Yes
(See Guardian System)
Coolant Sensor Failure No Yes No No
MAP Sensor Failure No Yes No No
Air Temperature Sensor Fail-
ure
No Yes No No
Ignition Coil Failure No Yes No No
Injector Failure No Yes No No
Horn Failure N/A Yes No
Battery Voltage too high
(16V) or too low (11V) or
very low (9.5V)
No Yes Yes Yes
(See Guardian System)
Throttle Sensor Failure Continuous
Intermittant
Beeping
Yes Yes Yes
(See Guardian System)
Block Water Pressure Yes Yes Yes Yes
(See Guardian System)
Calculated Oil Level Critical Yes Yes Yes Yes

Mercury 225 EFI Specifications

General

Engine Type	V6
Horsepower	225 hp
Steering	Remote
Fuel Induction System	Electronic Fuel Injection (EFI)
Alternator Output	60 Amp
Shaft Length	20", 25"
Weight	505 lbs
Full Throttle RPM Range	5000-5800