Yamaha F40B - Troubleshooting the PTT Unit (PTT model)

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