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Inspection Procedure

  1. INSPECT TRANSMISSION CONTROL SWITCH 
    1. Disconnect the L42 transmission control switch connector.
    2. Measure the resistance between each terminal of the transmission control switch when the shift lever is moved to each position.

      Standard Resistance 

      RESISTANCE REFERENCE

      Tester Connection Condition Specified Condition
      3 (IG) - 7 (S) Shift lever on S, "+" or Below 1 Ω
      2 (SFTU) - 5 (E) Shift lever held in "+" (Up-shift) Below 1 Ω
      1 (SFTD) - 5 (E) Shift lever held in "-" (Down-shift) Below 1 Ω
      3 (IG) - 7 (S) Shift lever not on S, "+" or "-" 10 kΩ or higher
      2 (SFTU) - 5 (E) Shift lever on S 10 kΩ or higher
      1 (SFTD) - 5 (E) Shift lever on S 10 kΩ or higher
      Fig 1: Identifying L42 Transmission Control Switch Connector Terminals
      G04948381Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE TRANSMISSION FLOOR SHIFT ASSEMBLY (TRANSMISSION CONTROL SWITCH)  (See REMOVAL  )

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BATTERY, BODY GROUND) 
    1. Disconnect the L42 transmission control switch connector.
    2. Turn the engine switch on (IG).
    3. Measure the voltage of the wire harness side connector.

      Standard Voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      L42-3 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      L42-3 (IG) - Body ground Engine switch off Below 1 V
    4. Turn the engine switch off.
    5. Measure the resistance of the wire harness side connector.

      Standard Resistance 

      RESISTANCE REFERENCE

      Tester Connection Condition Specified Condition
      L42-5 (E) - Body ground Always Below 1 Ω
      Fig 2: Identifying L42 Transmission Control Switch Connector Terminals
      G04948382Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM) 
    1. Turn the engine switch on (IG).
    2. Measure the voltage of the wire harness side connector.

      Standard Voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      A13-16 (S) - Body ground
      • Engine switch on (IG)
      • Shift lever on S, "+" or "-"
      		 11 to 14 V
      A13-16 (S) - Body ground
      • Engine switch on (IG)
      • Shift lever not on S, "+" or "-"
      		 Below 1 V
      Fig 3: Identifying A13 ECM Connector Terminals
      G05847539Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the engine switch off.
    4. Disconnect the A13 ECM connector.
    5. Measure the resistance of the wire harness side connector.

      Standard Resistance 

      RESISTANCE REFERENCE

      Tester Connection Condition Specified Condition
      A13-8 (SFTU) - Body ground Shift lever held In "+" (Up-shift) Below 1 Ω
      A13-7 (SFTD) - Body ground Shift lever held In "-" (Down-shift) Below 1 Ω
      A13-8 (SFTU) - Body ground Shift lever on S 10 kΩ or higher
      A13-7 (SFTD) - Body ground Shift lever on S 10 kΩ or higher
      Fig 4: Identifying A13 ECM Connector Terminals
      G04948384Courtesy 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  )

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