TROUBLESHOOTING
SERVICE MANUAL NUMBER 28
Pump Motor Will Not Stop Running Down In Auto Mode
TRIM UP/OUT SWITCH AND TRAILER SWITCH INOPERATIVE IN MANUAL MODE
NOTE:An internal timer in the control module stops the pump motor 50 seconds after this
problem condition occurs.
Cause
Special Instructions
Loose or dirty solenoid connection.
Check connections 7 and 8.
Check for voltage at terminal 8 while
trimming UP (in MANUAL mode). If
voltage exists, an open condition in
solenoid is indicated and solenoid
must be replaced. If no voltage is
indicated, refer to steps 3 through 6
following.
Faulty solenoid.
Loose or corroded trim limit switch
lead connections.
Check connections 32 and 36.
Disconnect trim limit switch leads 32
and 36 and connect a continuity
meter between leads. Continuity
should exist with drive unit in DOWN
position. If not, readjust or replace
switch as necessary.
Faulty trim limit switch.
Check leads 30, 35, 46 and 2
for loose or corroded connections or
damage.
Open circuit in wiring harness.
Faulty control module.
Replace.
Pump Motor Will Not Run Up Or Down In Auto Mode
MANUAL MODE FUNCTIONS PROPERLY
Cause
Special Instructions
Determine cause for blown fuse and
correct before replacing fuse.
Control module 20 amp fuse blown.
Open in control module battery cables
or wiring harness.
Check cables 16 and 18 and lead
20.
Check for voltage at terminal 24 and
25
with switch in AUTO mode. If
voltage exists at terminal 25, but not
, switch is faulty.
Faulty mode switch.
24
Faulty control module.
Replace.
INDEX
Page 1C-24
90-863160 MAY 2000
| 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