Mariner 100, Service Manual, Page: 240 / 391

6A-16 POWER TRIM 90-13645--2 495
No Voltage Indicated:
Check that voltage is being supplied to
control by performing the following checks:
D
DO NOT start engine.
D
Turn ignition switch to “Run” position.
D
Check for voltage at any instrument, us-
ing a Voltmeter.
* Remote Control NOT Equipped with Trailer Button
No Voltage Indicated:
D
Check battery leads and RED leads
(between engine starter motor sole-
noid and Point 3) for poor connections
or open circuits.
D
Check battery charge.
Troubleshooting the “Down” and “Up” Circuits*
(All Circuits Inoperative)
Check two in-line fuses (under cowl) to see
if fuses are blown.
Fuses Not Blown:
Connect Voltmeter red lead to Point 3,
and black lead to ground. Battery voltage
should be indicated.
Battery Voltage Indicated:
D
Connect Voltmeter RED lead to Point
10 and black lead to ground.
D
Depress “Up” trim button and check for
battery voltage.
Battery Voltage Indicated:
D
Check BLACK ground wires at solenoids
for poor connection or poor ground.
D
Check BLACK motor lead for poor ground
at Point 12. If wire is grounded, the pump
motor is faulty. Refer to “Motor and Elec-
trical Tests/Repair,” following.
No Voltage Indicated:
Red wire is open between Point 14 and RED
terminal on back of the ignition switch.
D
Check for loose or corroded connections.
D
Check for open in wire.
Battery Voltage Indicated:
There is an open circuit in wire between
Point 5 and RED terminal on the back of the
ignition switch.
No Voltage Indicated:
Connect RED Voltmeter lead to Point 5,
and BLACK lead to ground.
Battery Voltage Indicated:
Trim switch is faulty or there is an open circuit
in wires [GREEN-WHITE, BLUE-WHITE and
PURPLE-WHITE (or PURPLE)] between trim
buttons and trim pump.
D
Check trim switch.
D
Check all trim harness connectors for loose
or corroded connections.
D
Check for pinched or severed wires.
Blown Fuse:
D
Correct problem that caused fuse to blow.
D
Replace fuse.