TROUBLESHOOTING SERVICE MANUAL NUMBER 28
Page 1C-22 90-863160 MAY 2000
Auto Trim II Electrical System
NOTE:Refer to “Auto Trim II System Wiring Diagram.”
Pump Motor Will Not Run UP Or DOWN In Either Manual Or Auto Mode
SOLENOIDS CLICK
Cause Special Instructions
Pump positive battery cable
connection loose or corroded.
Check cable 14.
110 amp fuse blown or loose or
corroded solenoid connection.
Check for voltage at terminal 5.
Pump motor brushes stuck, corroded
or worn out.
Clean or replace.
Armature commutator dirty. Clean or replace.
Armature faulty. Test and replace if bad.
Field and frame faulty. Test and replace if bad.
Pump gears frozen. Replace pump.
Trim harness shorted between UP
and DOWN circuit.
Disconnect blue-white lead 2 from
solenoid terminal. If pump motor will
now run in the DOWN direction, a
short in the harness is indicated.
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