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AUTOMATIC TRANSMISSION SYSTEM (for 1GR-FE) Transmission Control Switch Circuit

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DTC Code DTC Name
  Transmission Control Switch Circuit
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DESCRIPTION

When moving the shift lever to S using the transmission control switch, it is possible to switch the shift range between "1" (1st range) and "5" (5th range).

Shifting to "+" once raises the shift range by one, and shifting to "-" lowers the shift range by one.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

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PROCEDURE


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    INSPECT TRANSMISSION CONTROL SWITCH


    1. A0158UJE22

      Disconnect the transmission control switch connector.

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

      Standard Resistance
      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
      Table 1. Text in Illustration
      *a

      Front view of wire harness connector

      (to Transmission Control Switch)

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    CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BATTERY, BODY GROUND)


    1. A015DNVE39

      Disconnect the transmission control switch connector.

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection 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

    4. Turn the engine switch off.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E52-5 (E) - Body ground Always Below 1 Ω
      Table 2. Text in Illustration
      *a

      Front view of wire harness connector

      (to Transmission Control Switch)

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    CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)


    1. A015CSFE74

      Disconnect the ECM connector.

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      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

    4. Turn the engine switch off.

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

      Standard Resistance
      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
      Table 3. Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)

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    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLEClick here

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    REPLACE TRANSMISSION CONTROL SWITCH (LOWER SHIFT LEVER ASSEMBLY)Click here

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    REPAIR OR REPLACE HARNESS OR CONNECTOR