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Inspection Procedure

  1. CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - BODY GROUND) 
    1. Disconnect the connector of pattern select switch (See REMOVAL  ).
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      J36-1 (E) - Body ground Always Below 1 Ω
    3. Fig 1: Identifying J36 Pattern Select Switch Connector Terminal
      G05750804Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    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.

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      1 (E) - 6 (P) Press continuously pattern select switch (SPORT) Below 1 Ω
      Release pattern select switch (SPORT) 10 kΩ or higher
      1 (E) - 3 (2ND) Press continuously pattern select switch (SNOW) Below 1 Ω
      Release pattern select switch (SNOW) 10 kΩ or higher
      Fig 2: Identifying J36 Pattern Select Switch Connector Terminal
      G05750805Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE PATTERN SELECT SWITCH ASSEMBLY  (See REMOVAL  )

    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.
    2. Disconnect the cowl side junction block (main body ECU RH) connector
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      J75-18 (PWR) - Body ground Press continuously pattern select switch (SPORT) Below 1 Ω
      Release pattern select switch (SPORT) 10 kΩ or higher
      J75-17 (SNOW) - Body ground Press continuously pattern select switch (SNOW) Below 1 Ω
      Release pattern select switch (SNOW) 10 kΩ or higher
      Fig 3: Identifying J75 Main Body ECU Connector Terminal
      G05750806Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  (See PROBLEM SYMPTOMS TABLE  )