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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 

    STANDARD 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 Connector Terminals
    G05154791Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE TRANSMISSION CONTROL SWITCH (TRANSMISSION FLOOR SHIFT 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.
      Fig 2: Identifying E52 Connector Terminals (E And IG)
      G05760573Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage 

      STANDARD 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 

    STANDARD RESISTANCE SPECIFICATION

    Tester Connection Condition Specified Condition
    E52-5 (E) - Body ground Always Below 1 Ω

    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 

      STANDARD 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. Measure the resistance according to the value(s) in the table below.
    Fig 3: Identifying A38 Connector Terminals
    G05760574Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard Resistance 

    STANDARD RESISTANCE SPECIFICATION

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