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Inspection Procedure

  1. INSPECT SEAT MEMORY SWITCH 
    1. Disconnect the seat memory switch connector.
    2. Check the continuity of each terminal, as shown in the illustration and table.

      Standard: 

      TERMINAL NO AND SWITCH POSITION CHART

      Terminal No. Switch position Specified condition
      1 <==> 2 SET switch ON Continuity
      1 <==> 4 Memory switch 1 ON Continuity
      1 <==> 3 Memory switch 2 ON Continuity
      Fig 1: Identifying Connector Terminals Of Seat Memory Switch
      G03372850Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG : REPLACE SEAT MEMORY SWITCH 
    2. OK : Go to next step. 
  2. CHECK WIRE HARNESS (MEMORY SWITCH <==> POSITION CONTROL ECU) 
    1. Disconnect the D18 seat memory switch and M7 seat position control ECU connectors.
    2. Check the continuity of the wire harness between the seat memory switch and seat position control ECU, as shown in the illustration and table.
      Fig 2: Identifying Connector Terminals Of D18 Seat Memory Switch And M7 Seat Position Control ECU
      G03372851Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      TERMINAL NO AND CONDITION CHART

      Symbols (Terminal No.)
      (Switch <==> ECU)      		 Condition Specified condition
      1 <==> SW1 (D18-4 <==> M7-16) Constant Continuity
      2 <==> SW2 (D18-3 <==> M7-17) Constant Continuity
      MMRY <==> MMRY (D18-2 <==> M7-15) Constant Continuity
      E <==> Body ground (D18-T <==> Body ground) Constant Continuity

      HINT:

      If circuit is not as specified, check the circuits connected to other parts.

    1. NG : CHECK AND REPLACE HARNESS AND CONNECTOR 
    2. OK : CHECK AND REPLACE POSITION CONTROL ECU ASSY (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
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