Inspection Procedure

HINT:

There is not the hand-held tester, begin with STEP  2.

1. Check power seat control switch operation. 

   PREPARATION: 

   1. Connect the hand-held tester to the DLC3.
   2. Turn ignition switch ON and hand-held tester main switch ON.
   3. Select the ACTIVE TEST mode on the hand-held tester.

   CHECK: 

   Check that switch status (ON/OFF) changes on the screen of hand-held tester as the power seat control switch of the vehicle is turned.

   OK: 

   The switch status changes in the same way as the vehicle switch operation. 

   1. OK: Check and replace Power seat position ECU (See  AUTOMATIC TRANSMISSION SYSTEMS - GS300 & GS430  ). 
   2. NG: Go to next step. 
2. Check power seat control switch. 
   Fig 1: Checking Power Seat Control Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   PREPARATION: 

   1. Remove seat.
   2. Disconnect power seat control switch.

   CHECK: 

   Check continuity between terminals when switch operated.

   OK: 

   Driver's seat slide switch: 

   Fig 2: Driver Seat Slide Switch Continuity Specification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Driver's seat front vertical switch: 

   Fig 3: Driver Seat Front Vertical Switch Continuity Specification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Driver's seat lifter switch: 

   Fig 4: Driver Seat Lifter Switch Continuity Specification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Driver's seat reclining switch: 

   Fig 5: Driver Seat Reclining Switch Continuity Specification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Passenger's slide switch: 

   Fig 6: Passenger Slide Switch Continuity Specification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Passenger's front vertical switch: 

   Fig 7: Passenger Front Vertical Switch Continuity Specification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Passenger's lifter switch: 

   Fig 8: Passenger Lifter Switch Continuity Specification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Passenger's reclining switch: 

   Fig 9: Passenger Reclining Switch Continuity Specification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: Replace power seat control switch. 
   2. OK: Go to next step. 
3. Check harness and connectors between power seat position ECU and power seat control switch (See  AUTOMATIC TRANSMISSION SYSTEMS - GS300 & GS430  ). 
   1. NG: Repair and replace harness or connector. 
   2. OK: Go to next step. 

   Check and replace power seat position ECU.(See  AUTOMATIC TRANSMISSION SYSTEMS - GS300 & GS430  ).