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Pattern Select Switch Power Mode Circuit: Procedure

  1. CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - BODY GROUND) 
    1. Disconnect the connector of pattern select switch.
    2. Measure the resistance according to the value(s) in the table below.
      GTY279023Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance

      Tester Connection Specified Condition
      J36-3 (E) - Body ground Below 1 Ω
      TEXT IN ILLUSTRATION

      *1 Front view of wire harness connector
      (to Pattern Select Switch)

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  2. INSPECT PATTERN SELECT SWITCH ASSEMBLY 
    1. Measure the resistance according to the value(s) in the table below.
      GTY262565Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance

      Tester Connection Switch Condition Specified Condition
      3 - 7 Pattern select switch
      (PWR)
      Below 1 Ω
      Pattern select switch
      (NORM)
      10 kΩ or higher
      TEXT IN ILLUSTRATION

      *1 Component without harness connected
      (Pattern Select Switch)

    NG → See step   5 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - MAIN BODY ECU) 
    1. Connect the connector of pattern select switch.
      GTY275920Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the cowl side junction block RH (main body ECU RH) connector.
    3. Measure the resistance between terminal PWR of the cowl side junction block RH (main body ECU RH) and body ground.

      Standard resistance

      Tester Connection Switch Condition Specified Condition
      J75-18 (PWR) - Body ground Pattern select switch
      (PWR)
      Below 1 Ω
      Pattern select switch
      (NORM)
      10 kΩ or higher
      TEXT IN ILLUSTRATION

      *1 Rear view of wire harness connector
      (to Main Body ECU RH)

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   4 

  4. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [08/2012 - ] 
  5. REPLACE PATTERN SELECT SWITCH ASSEMBLY. Refer to  REMOVAL [08/2012 - ]