Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT SEAT MEMORY SWITCH
1. Disconnect the seat memory switch connector.
2. Measure the resistance of each terminal, as shown in Fig 1 and Fig 2.
  
  Fig 1: Inspecting Seat Memory Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 2: Seat Memory Switch Tester Connection Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: REPLACE SEAT MEMORY SWITCH
  
  OK: Go to next step.
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU & SWITCH ASSY - BODY GROUND)
1. Reconnect the seat memory switch connector.
2. Disconnect M6 ECU connector.
3. Measure the resistance of each terminal, as shown in Fig 3 and Fig 4.
  
  Fig 3: Checking Harness And Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 4: Harness and Connector (Position Control ECU & Switch Assy - Body Ground) Tester Connection Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
  
  OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )