Malfunction Of Lifter Operation

1. Turn the ignition switch to OFF.
2. Disconnect the power seat switch connector.
3. Measure the resistance between connector terminals when moving the switch to lifter up and lifter down. Ref. to SEATS>POWER SEAT>INSPECTION>POWER SEAT SWITCH 

Is the inspection result normal?

Yes  : Go to  2.

No  : Replace the power seat switch assembly. Ref. to SEATS>POWER SEAT 

1. Disconnect the lifter motor connector.
2. Measure the resistance between power seat switch connector and lifter motor connector.

   Connector & terminal 

   Except for RECARO® seat 

   (St52) No. 7 - (St66) No. 6:

   (St52) No. 4 - (St66) No. 4:

   RECARO® seat 

   (St52) No. 9 - (St66) No. 6:

   (St52) No. 6 - (St66) No. 4:

Is the resistance less than 10 Ω?

Yes  : Go to  3.

No  : Check power seat harness.

1. Connect the power seat switch connector and lifter motor connector.
2. Apply battery voltage to the lifter motor and check the motor rotation.

   Connector & terminal 

   (St66) No. 6 (+) - (St66) No. 4 (-):

   (St66) No. 4 (+) - (St66) No. 6 (-):

Does the motor rotate normally?

Yes  : Check for temporary poor contact or mechanical trouble in lifter mechanism.

No  : Lifter motor problem. Replace the seat cushion frame assembly.