Mitsubishi 3000GT Service Manual page 1128

Rear height
Front height
limit switch
limit switch
Slide kit switch
TSB Revision
INTERIOR - Front Seat
LIMIT SWITCH CHECK
(1) Disconnect each limit switch at the connector and connect
a circuit tester between the terminals.
(2) Operate each switch to check for continuity between the
terminals.
(3) If there is any abnormality, replace the power seat adjuster
assembly.