Table of Contents
Advertisement
Power Trim
g -
Battery
h -
Tiller handle trim switch
i -
Power trim unit
Troubleshooting the Down Circuit
NOTE: Refer to the preceding wiring diagrams for test points when troubleshooting the electrical systems. Test points are
specified by number.
DMT 2004 Digital Multimeter
Step
Step 1: Check for
battery voltage at
point 1.
Step 2: Check for
battery voltage at
point 3.
Step 3: Check for
battery voltage at
point 4.
Step 4: Check for
battery voltage at
each point 5.
Step 5: Check for
battery voltage at
point 2.
Step 6: Check up
relay.
Troubleshooting the Up Circuit
NOTE: Refer to the preceding wiring diagrams for test points when troubleshooting the electrical systems. Test points are
specified by number.
DMT 2004 Digital Multimeter
Step
Step 1: Check for
battery voltage at
point 8.
Page 5B-16
Test Procedure
Connect voltmeter red lead to point 1
and black lead to battery ground.
Depress the down trim button.
Connect voltmeter red lead to point 3
and black lead to battery ground.
Connect voltmeter red lead to point 4
and black lead to battery ground.
Depress the down trim button.
Connect voltmeter red lead to each
point 5 and black lead to battery
ground.
Connect voltmeter red lead to point 2
and black lead to battery ground.
Depress the down trim button.
Test up relay. Refer to Power Trim
Relay Test, preceding.
Test Procedure
Connect voltmeter red lead to point 8
and black lead to battery ground.
Depress the up trim button.
© 2016 Mercury Marine
91‑892647A01
Test Result
Battery voltage measured:
•
Remote control models: Go to Step 2.
•
Tiller handle models: Go to Step 4.
No battery voltage measured:
•
Go to Step 3.
Battery voltage measured:
•
Go to Step 5.
No battery voltage measured:
•
There is an open circuit between Point 3 and positive (+)
battery terminal.
•
Check for loose or corroded connections.
•
Check wires for open.
Battery voltage measured:
•
Wire is open between Points 4 and 1.
No battery voltage measured:
•
Go to Step 4.
Battery voltage measured:
•
Trim switch is faulty. Verify by performing continuity test.
No battery voltage measured:
•
Check for loose or corroded wire at each point 5.
•
Open circuit in wire supplying current to point 5.
Battery voltage measured:
•
Go to Step 6.
No battery voltage measured:
•
Relay is defective.
Relay is good:
•
Pump motor wiring is defective.
•
Pump motor is defective.
Relay is faulty:
•
Replace relay.
91‑892647A01
Test Result
Battery voltage measured:
•
Remote control models: Go to Step 2.
•
Tiller handle models: Go to Step 4.
No battery voltage measured:
•
Go to Step 3.
90-8M0105568 eng MARCH 2016
Advertisement
Chapters
Table of Contents
Troubleshooting
