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Electrical Circuits

  1. With battery fully charged and all electrical connections cleaned and tightened, turn dome light on and operate seat switch. If dome light dims, seat may be jamming. Check for binding. If dome light does not dim, proceed to step 2).
  2. Disconnect feed wire from instrument panel at fuse block side cowl circuit breaker. Connect 12-volt test lamp in series between feed wire and ground. If lamp lights, feed wiring is good. Remove test lamp and connect feed wire to circuit breaker.
  3. Disconnect wiring from other side of circuit breaker and connect test lamp in series between circuit breaker and ground. If test lamp lights, circuit breaker is good. Remove test lamp and connect feed wire to circuit breaker.
  4. Disconnect wiring harness at connector under seat. Connect test lamp between Red and Black wire in female connector. If test lamp lights, harness to seat is good. Remove test lamp and connect harness. Remove switch from seat harness.
  5. To check front motor, connect an insulated jumper wire between Red terminal in center section and either the Red with Green tracer or Yellow with Green tracer connection in front section. Connect a second jumper wire between Black terminal in center section and open connection in front section.
  6. If motor does not operate, reverse jumpers in front section. If motor still does not operate, the harness or complete 3-motor assembly is defective. To check center motor, connect an insulated jumper wire between Red terminal of center section and either the Red with Blue tracer or Yellow with Blue tracer connection in center section.
  7. Connect a second jumper wire between Black terminal in center section and open connection in center section. If motor does not operate, reverse jumper wires. If motor still does not operate, harness or 3-motor assembly is defective.
  8. To check rear motor, connect an insulated jumper wire between Red terminal in center section and either the Red with White tracer or Yellow with White tracer connection of rear section. Connect second jumper wire between Black terminal in center section and open connection in rear section.
  9. If motor does not operate, reverse wires in rear section. If motor still does not operate, harness or 3-motor assembly is defective. If all motors and seat operate properly, the switch is bad.
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