Troubleshooting The Ptt Unit - Yamaha F30B 2018 Service Manual

Symptom 1: Y-COP lock and unlock function, but there is no answer-back (beep).
Symptom 2
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Troubleshooting the PTT unit

Symptom 1: PTT unit does not operate.
Symptom 2
PTT relay does not
operate
PTT motor does not
operate
PTT fluid pressure
does not increase
Cause
Buzzer malfunction
Short, open, or loose con-
nection of the wire harness
Cause
Blown fuse
PTT switch malfunction
PTT relay malfunction
Short, open, or loose con-
nection of the wire harness
PTT motor malfunction
Bent trim and tilt ram
Stuck trim and tilt ram
Short, open, or loose con-
nection in PTT motor circuit
Manual valve open
Insufficient PTT fluid
PTT fluid leakage
Clogged fluid passage
PTT motor malfunction
Gear pump malfunction
Outboard motor troubleshooting
Checking steps
Check the buzzer.
Measure the buzzer input voltage.
Check the Y-COP circuit.
Checking steps
Check the fuse.
Check the PTT switch.
Check the PTT relay.
Measure the PTT switch input volt-
age.
Measure the PTT relay input volt-
age.
Check for continuity between the
PTT switch and the PTT relay.
Check the PTT motor.
Check the trim and tilt ram.
Disassemble and check the PTT
unit.
Check for continuity between the
PTT motor and the PTT relay termi-
nal.
Check the manual valve.
Add sufficient PTT fluid.
Check for PTT fluid leakage.
Disassemble and check the PTT
unit.
Check the filter for dirt and obstruc-
tions.
Check the valves for damage.
Check the fluid passages for ob-
structions.
Check the PTT motor.
Check the gear pump operation.
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