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Mercury 45 Jet 50-55 - Troubleshooting the Up Circuit* (When Down Circuit Is OK)

Mercury 45 Jet 50-55
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Battery Voltage Indicated:
Battery Voltage Indicated:
Battery Voltage Indicated: No Voltage Indicated:
No Voltage Indicated:
No Voltage Indicated:
No Voltage Indicated:
Connect Voltmeter red lead to
Point 5. If battery voltage is indi-
cated, trim switch is faulty. If no bat-
tery voltage, check for loose or cor-
roded connection at Point 5 or
open circuit in wire supplying cur-
rent to Point 5.
Relay Switch is defective.
There is an open circuit between
Point 3 and positive (+) battery ter-
minal.
Connect Voltmeter red lead to
Point 6.
Connect Voltmeter red lead to
Point 3.
Connect Voltmeter red lead to
Point 7 and black lead to ground.
Depress “Down” trim button. If bat-
tery voltage is indicated, wire is
open between Points 7 and 8.
Connect Voltmeter red lead to
Point 8 and black lead to ground.
Depress the “Up” trim button.
Depress “Up” trim button.
Pump motor wiring is defective.
Pump motor is defective.
Check for loose or corroded con-
nections.
Check wires for open circuit.
MID-SECTION - 5C-1990-817643R1 DECEMBER 1996
Troubleshooting the “Up” Circuit*
(When “Down” Circuit Is OK)

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