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Home >> Lexus >> 2017 >> RC 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 57 (Automatic Transmission System (2GR-FKS,Aa81E) - Diagnostic Codes (4 Of 4) & Circuit Tests) >> AUTOMATIC TRANSMISSION SYSTEM (for 2GR-FKS) >> Kick Down Switch Circuit [11/2017 - ] >> Procedure

Kick Down Switch Circuit [11/2017 - ]: Procedure

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  1. CHECK HARNESS AND CONNECTOR (KICK DOWN SWITCH ASSEMBLY - BODY GROUND) 
    1. Disconnect the A53 kick down switch assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A53-1 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (KICK DOWN SWITCH ASSEMBLY - BODY GROUND) 

    Result: 

    OK 

    See step  2

  2. INSPECT KICK DOWN SWITCH ASSEMBLY 
    1. Remove the kick down switch assembly.

      Refer to REMOVAL [11/2017 - ]

    2. Measure the resistance according to the value(s) in the table below.
      GTY646340Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Kick Down Switch Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 (E) - 2 (KD) Continuously pressed
      (Kick down switch assembly is ON)      		 Below 1 Ω
      Released
      (Kick down switch assembly is OFF)      		 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE KICK DOWN SWITCH ASSEMBLY. Refer to  COMPONENTS [09/2014 - ] 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (KICK DOWN SWITCH ASSEMBLY - ECM) 
    1. Install the kick down switch assembly.

      Refer to INSTALLATION [11/2017 - ]

    2. Disconnect the A91 ECM connector.
    3. Measure resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A91-20 (KD) - Body ground Fully depressed
      (Kick down switch assembly is ON)      		 Below 1 Ω
      Released
      (Kick down switch assembly is OFF)      		 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2017 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (KICK DOWN SWITCH ASSEMBLY - ECM) 

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