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PROBLEM #1 (continued)
1. Chair or lift will not operate (continued).
PROBABLE CAUSE
TESTING PROCEDURE
CORRECTIVE ACTION
(14. continued)
NOTE: If the reading
If the open or
short circuit
is 10 percent, proceed
to Step 4
cannot be
below. If the
located and
ohmmeter
repaired, it
indicates
may be internal
"infinite" on
to the potenti-
any of the
ometers.
potentiometers,
an open circuit
Replace
is indicated.
automatic wiring
harness.
indicates "0"
on any of the
potentiometers, a short
circuit is indicated.
checkacross the
following terminals for a
variable reading from
"0" to "50k," while turning
programming dials clockwise
and counter-clockwise.
(a) Terminals 8 and 9
to check back motor
potentiometer.
(b) Terminal 8 and 1
to check seat motor
potentiometer.
(c) Terminals 8
and 10 to check
lift motor
potentiometer.
MD0373
A-10