6-5
2. ALTERNATOR
a. ALTERNATOR ASSEMBLY INSPECTION
(With the alternator assembly mounted on the
outboard motor)
Do not disconnect the battery terminals while the alternator is
running.
• Alternator assembly inspection must be made with the
assembly mounted on the outboard motor.
• Replace the IC regulator when the battery voltage exceeds 16V.
• Before disconnecting the alternator fuse cable, be sure to
disconnect the battery negative (-) terminal.
Check the following before starting the alternator assembly
inspection.
– Battery condition and cable connection
– Alternator belt for looseness, cut and/or fraying (P. 3-28)
– Alternator 4P connector and alternator fuse cable for
connection
– Blown 90A fuse and 10A fuse
– Open or short circuit in each harness and cable
1) Turn the ignition switch to the “ON” position and check that
the alternator indictor light comes ON.
2) If the alternator indicator light does not come ON,
disconnect the alternator 4P connector and short-circuit the
white/blue terminal of the harness side connector to the
ground.
3) If the indicator light still does not come ON, check the
following.
– Main wire harness for open circuit
4) Start the engine and check that the alternator indicator light
goes OFF.
– The alternator is normal when the light goes OFF.
– If the indicator light is still ON, check each part of the
alternator (P. 6-14) and repeat the above steps 2 and 3.
• When the alert system functions while the alternator is in
operation, the warning buzzer sounds intermittently.
NOTICE
[2] ALTERNATOR
[1] ALTERNATOR
4P CONNECTOR
[1] ALTERNATOR 4P CONNECTOR
[3] Harness side connector
viewed from front side
[2]
(White/
Blue)
[1]
ALTERNATOR
INDICATOR
LIGHT
