TM 5-3805-263-14&P-3
TESTING AND ADJUSTING
PROBLEM 5
SYMPTOMS:
Supplemental steering motor status light does not turn ON and
pump motor does not run when Automatic/Manual (A/M) switch
is held in the Manual position.
Possible Causes: A A/M switch is bad.
B. Open in circuit between supplemental steering fuse and the
switch.
C. Open in circuit between A,/M switch and magnetic switch.
Troubleshooting: a) With engine stopped and disconnect switch OFF, remove
either wire from the terminals of the A/M switch. Measure
the resistance (continuity) across the two switch terminals.
With switch in automatic (open) position, resistance should
be greater than 10,000 ohms. In the Manual (closed)
position, the resistance should be less than I ohm. If not,
make a replacement of the switch.
b) With engine stopped and disconnect switch OFF, remove
supplemental steering fuse. Disconnect wires from A/M
switch terminal and place to chassis ground. At the fuse
holder, check for continuity to ground. If no continuity, repair
or make replacement of wire to A/M switch.
c) With engine stopped and disconnect switch OFF,
disconnect wires from A /M switch terminal and place to
chassis ground. At solenoid coil terminal (small terminal),
check for continuity to ground. If no continuity, repair or
make replacement of wire from Al M switch to solenoid coil.
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