SERVICE MANUAL NUMBER 28
TROUBLESHOOTING
Trim UP/OUT Switch Inoperative In Manual Trim Control
TRIM DOWN/IN SWITCH FUNCTIONS, AUTO MODE FUNCTIONS PROPERLY
Cause
Special Instructions
Determine cause for blown fuse and
correct before replacing fuse.
Trim 20 amp fuse “43” blown (if
equipped).
Check voltage at terminal 44. If no
voltage is indicated, check lead 45
for a poor connection or damage.
Open in power supply lead to trim and
trailer switch.
Faulty trim UP/OUT switch (applies
only to trim controls where it is
necessary to actuate trim UP switch in
order for trailer switch to function).
Check for voltage at terminal 40
while actuating trim UP/OUT switch.
Replace switch if no voltage is
indicated.
Trailer Switch In Manual, Trim Control Inoperative
TRIM UP/OUT SWITCH FUNCTIONS
Cause
Special Instructions
Check for voltage at terminal 41 and
while actuating trailer switch. If
42
voltage exists at terminal 42, but not
at terminal 41, a faulty switch is
indicated. If no voltage exists at
terminal 42, check power supply lead
for an opening.
Faulty trailer switch.
Opening in wiring.
Check lead 39 for damage or a
loosened or corroded connection.
Boat Is On Plane Well Before Drive Unit Begins To Trim Out
Cause
Special Instructions
Control module adjustment incorrect.
Faulty control module.
Adjust. (Refer to SECTION 5)
Replace control module.
Boat Is Not On Plane Before Drive Unit Begins To Trim Out
Cause
Special Instructions
Control module adjustment incorrect.
Faulty control module.
Adjust. (Refer to SECTION 5)
Replace control module.
INDEX
90-863160
MAY 2000
Page 1C-27
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | MerCruiser Sterndrives 90-863160 |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(1 votes, average: 3 out of 3)
Marine readers have rated Mercury MerCruiser Bravo Outdrives Sterndrives Marine Engines Service Manual Number 28 3.0 out of 3.0 based on 1 product reviews. I could not find any mention of the seawater pump assembly.
Maybe I have the wrong unit