Mercury BRAVO Service Manual

TROUBLESHOOTING
SERVICE MANUAL NUMBER 28
90-863160 MAY 2000 Page 1C-25
Trim System Completely Inoperative In Manual Mode
AUTO MODE FUNCTIONS PROPERLY
Cause Special Instructions
Faulty mode switch.
Check for voltage at terminal 26 with
mode switch in MANUAL mode. If no
voltage is indicated, replace switch.
Open circuit in wiring harness.
Check leads 27 and 33 for loose or
corroded connections or damage.
Pump Motor Will Run UP, But Not DOWN In Both Manual And Auto Modes
DOWN SOLENOID DOES NOT CLICK
Cause Special Instructions
Loose or dirty solenoid connections. Check connections 4, 7 and 12.
Faulty mode switch or open in DOWN
circuit.
Check for voltage at terminal 12
while trimming Down (in MANUAL
mode). If no voltage is indicated,
repeat test at terminal 22 and 23. If
voltage exists at terminal 23, but not
at 22, switch is faulty. If voltage is
present at terminal 22, check leads
3 and 48 and connector 47 for an
open condition.
Faulty DOWN solenoid. Replace.
DOWN SOLENOID CLICKS
Cause Special Instructions
Loose or dirty solenoid connections. Check connections 10 and 11.
Faulty solenoid.
Check for voltage at terminal 11 while
trimming Down (in MANUAL mode). If
no voltage is indicated, replace
solenoid.
Faulty DOWN field winding. Replace field and frame.
Pump Motor Runs DOWN, But Not UP In Both The Manual And Auto Modes
UP SOLENOID CLICKS
Cause Special Instructions
Loose or dirty solenoid connections. Check connections 5 and 6.
Faulty solenoid.
Check for voltage at terminal 6 while
trimming UP. If no voltage is
indicated, replace solenoid.
Faulty UP field winding. Replace field and frame.

Mercury BRAVO Specifications

General

Brand	Mercury
Model	BRAVO
Category	Engine
Language	English