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Inspection [09/2024 - ]: Procedure

WARNING: This page is about a different car, the 2025 Toyota GR Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT SHIFT LOCK CONTROL ECU 

    HINT: 

    If the results of the following inspections are as specified but a malfunction has occurred, replace the shift lock control unit assembly.

    1. Inspect wire harness:
      1. Disconnect the shift lock control ECU connector.
        GTY845552Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Measure the voltage according to the value(s) in the table below.
        GTY873691Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Front view of wire harness connector
        (to Shift Lock Control ECU)

        Standard Voltage

        Tester Connection Condition Specified Condition
        5 (IG) - Body ground Ignition switch ON 11 to 14 V
        Ignition switch off Below 1 V
        4 (STP) - Body ground Brake pedal depressed 11 to 14 V
        Brake pedal released Below 1 V

        If the result is not as specified, repair or replace the shift lock control ECU wire harness.

      3. Measure the resistance according to the value(s) in the table below.
        GTY873690Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Front view of wire harness connector
        (to Shift Lock Control ECU)

        Standard Resistance

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

        If the result is not as specified, repair or replace the shift lock control ECU wire harness.

    2. Inspect shift lock solenoid:
      1. Disconnect the shift lock solenoid connector.
        GTY845550Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Measure the resistance according to the value(s) in the table below.
        GTY884416Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Front view of wire harness connector
        (to Shift Lock Solenoid)

        Standard Resistance

        Tester Connection Condition Specified Condition
        4 (P) - 3 (E2) Shift lever in P 10 kΩ or higher
        Shift lever not in P Below 1 Ω

        If the result is not as specified, replace the shift lock control unit assembly.

      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        1 (SLS+) - 2 (SLS-) Always 112 Ω

        If the result is not as specified, replace the shift lock control unit assembly.

        GTY884417Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Front view of wire harness connector
        (to Shift Lock Solenoid)
  2. INSPECT TRANSMISSION CONTROL SWITCH 
    1. Disconnect the transmission control switch connector.
      GTY845551Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.
      GTY1250977Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Transmission Control Switch)

      Standard Resistance

      Tester Connection Condition Specified Condition
      4 (IG) - 5 (S) Shift lever in M, "+" or "-" Below 1 Ω
      Shift lever not in M, "+" or "-" 10 kΩ or higher
      1 (SFTU) - 2 (E) Shift lever held in "+"
      (Up-shift)      		 Below 1 Ω
      Shift lever not held in "+"
      (Up-shift)      		 10 kΩ or higher
      3 (SFTD) - 2 (E) Shift lever held in "-"
      (Down-shift)      		 Below 1 Ω
      Shift lever not held in "-"
      (Down-shift)      		 10 kΩ or higher

      If the result is not as specified, replace the shift lock control unit assembly.

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