All Functions Do Not Operate (Without Memory Function)

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 (WITHOUT MEMORY FUNCTION) .

Check the power seat fuse inside the fuse box.

Is the fuse blown out?

Yes:  Replace the appropriate fuse.

No:  Go to  3

1. Disconnect the connector of power seat switch assembly.
2. Measure the voltage between harness connector and chassis ground.

   Connector & terminal 

   Driver's seat

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

   Passenger's seat

   (R190) No. 1 (+) - Chassis ground (-):

Is the voltage 10 V or more?

Yes:  Go to  4

No:  Check body harness.

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

Connector & terminal 

Driver's seat

(R200) No. 4 - Chassis ground:

Passenger's seat

(R190) No. 4 - Chassis ground:

Is the resistance less than 10 Ω?

Yes:  Replace the power seat switch assembly.

No:  Check body harness.