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All Functions Do Not Operate

  1. CHECK SEAT FUNCTIONS  .

    Operate each power seat switch and check that each power seat function operates normally.

    Does all function fail to operate?

    Yes:  Go to  2

    No:  Check the motor which does not operate. Ref. to SEATS>Power Seat System>INSPECTION>SOME MOTORS DO NOT OPERATE 

  2. CHECK FUSE  .

    Check the power seat fuse inside the fuse box.

    Is the fuse blown out?

    Yes:  Replace the appropriate fuse.

    No:  Go to  3

  3. CHECK POWER SUPPLY CIRCUIT  .
    1. Disconnect the connector of power seat switch assembly.
    2. Measure the voltage between harness connector and chassis ground.

      Connector & Terminal 

      (R200) No. 1 (+) - Chassis ground (-):

    Is the voltage 10 V or more?

    Yes:  Go to  4

    No:  Check body harness.

  4. CHECK POWER SUPPLY CIRCUIT  .

    Measure the resistance between power seat switch harness connector and chassis ground.

    Connector & Terminal 

    (R200) No. 1 - Chassis ground:

    Is the resistance less than 10 Ω?

    Yes:  Replace the power seat switch assembly.

    No:  Check body harness.