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Incorrect Manual Electric Seat Control Operation

  1. Are 30 amp fuses intact and inserted correctly? If yes, go to step  2 . If no, reinsert or replace fuses correctly and check the system.
  2. Is fusible link intact and inserted correctly? If yes, go to step  4 . If no, reinsert or replace fusible link correctly and check the system.
  3. Does seat operate or attempt to operate under calibrate sequence. If yes, go to step  4 . If no, go to MEMORY RECALL FUNCTION INOPERATIVE  , beginning at step 2)  then go to step  5 .
  4. Does seat move under manual electric control in all demanded directions (pulsing or not pulsing to demanded position)? If yes, go to step  6 . If no, go to step  5 .
  5. Does seat switch move seat under manual electric control in all demanded directions, after replacing seat switch. If yes, check system. If no, go to MEMORY RECALL FUNCTION INOPERATIVE  beginning at step 3)  or check seat motor operation.
  6. Observe non-movement of seat in planes where the seat did not go through full movement or stop at mid-positions under calibrate routine. Go to step  7 .
  7. Does manual electric seat movement in this plane pulse to position demanded? If yes, go to step  8 . If no, check motor operation.
  8. Are connections between gearbox sensor unit and ECU secure (and electrically sound)? If yes, go to step  9 . If no, go to step  10 .
  9. Does manual movement in this plane pulse in demanded direction after replacing gearbox sensor unit? If yes, go to step  11 . If no, check system.
  10. Secure connections, re-check Steps  6 and  7 .
  11. See SYMPTOM INDEX  table under SYSTEM TESTS.
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