Yamaha F150A Service Manual page 126

Symptom 1: Discharged battery
Symptom 2
—
Symptom 1: Y-COP lock and unlock do not function.
Symptom 2
There is an answer-back
(beep)
Symptom 1: Y-COP lock and unlock function, but there is no answer-back (beep).
Symptom 2
—
Cause
Battery performance decrease
Short, open, or loose connec-
tion in charging circuit
Lighting coil malfunction
Rectifier Regulator malfunction
Cause
Y-COP transmitter malfunction
Short, open, or loose connec-
tion of the wiring harness
Cause
Buzzer malfunction
Short, open, or loose connec-
tion of the wiring harness
Outboard motor troubleshooting
Checking steps
Check the battery capacity and specific
gravity.
Check the battery cable and terminals
for proper connections.
Check the charging circuit for wiring con-
nection and damage.
Measure the lighting coil output peak
voltage.
Measure the lighting coil resistance.
Measure the Rectifier Regulator output
voltage.
Check the Rectifier Regulator for conti-
nuity.
Checking steps
Check the button cell battery voltage.
Replace with a spare transmitter.
Check the Y-COP circuit.
Checking steps
Check the buzzer.
Measure the buzzer input voltage.
Check the Y-COP circuit.
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10-4
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1
A-6
A-8
5-19
2
5-19
5-19
5-19
3
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page
4
5-31
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5-30
5
See
page 6
5-30
5-30
5-30
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A