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Inspection Procedure

  1. INSPECT TRANSMISSION CONTROL SWITCH 
    1. Disconnect the E52 transmission control switch connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      3 (IG) - 7 (S) Shift lever in 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 in S, "+" or "-" 10 kΩ or higher
      2 (SFTU) - 5 (E) Shift lever in S 10 kΩ or higher
      1 (SFTD) - 5 (E) Shift lever in S 10 kΩ or higher
      Fig 1: Identifying E52 Transmission Control Switch Connector Terminals
      G05629057Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

    OK: Go To Next Step 

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BATTERY, BODY GROUND) 
    1. Disconnect the E52 transmission control switch connector.
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      E52-3 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      E52-3 (IG) - Body ground Engine switch off Below 1 V
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E52-5 (E) - Body ground Always Below 1 Ω
      Fig 2: Identifying E52 Transmission Control Switch Connector Terminals
      G05629058Courtesy 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. Disconnect the A38 ECM connector.
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      A38-25 (S) - Body ground
      • Engine switch on (IG)
      • Shift lever in S, "+" or "-"
      		 11 to 14 V
      A38-25 (S) - Body ground
      • Engine switch on (IG)
      • Shift lever not in S, "+" or "-"
      		 Below 1 V
    3. Turn the engine switch off.
    4. Measure the resistance according to the value(s) in the table below.
      Fig 3: Identifying A38 ECM Connector Terminals
      G05629059Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      A38-38 (SFTU) - Body ground Shift lever held in "+" (Up-shift) Below 1 Ω
      A38-27 (SFTD) - Body ground Shift lever held in "-" (Down-shift) Below 1 Ω
      A38-38 (SFTU) - Body ground Shift lever in S 10 kΩ or higher
      A38-27 (SFTD) - Body ground Shift lever in S 10 kΩ or higher

    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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