Yamaha F30A Service Manual page 273

Troubleshooting the PTT unit (PTT model)
Symptom 1: PTT unit does not operate
Symptom 2
PTT motor does not
operate
PTT motor oper-
ates, but the tilt ram
does not extend
WD: See the wiring diagram.
67C3K11
Cause 1
Blown fuse
PTT switch mal-
function
PTT relay malfunc-
tion
Short or open con-
nection in PTT
motor circuit
PTT motor malfunc-
tion
Manual valve left Manual valve mal-
open function
Insufficient PTT
fluid
PTT fluid leakage
Clogged filter
Clogged fluid pas-
sages
Malfunction of the
PTT unit internal
parts
Troubleshooting the outboard motor
Cause 2 Checking step
— Check the fuse.
Check the PTT
—
switch.
Check the PTT
—
relay.
Check the wiring
— harness continuity.
Disassemble and
— check the PTT
motor.
Check the manual
valve.
Add sufficient fluid.
—
Check the PTT unit
—
for leakage.
Disassemble and
check the PTT unit.
—
Refer
1
to
page
8-13
7-54
2
7-53
WD
3
7-35
4
7-43
3-13
5
7-47
7-42
6
7
8
9
9-8