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Home >> Lexus >> 2006 >> IS 250 RWD, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission (A760H)) >> Automatic Transmission System >> DTC P0982, P0983: Shift Solenoid "D" Control Circuit Low (Shift Solenoid Valve S4); Shift Solenoid "D" Control Circuit High (Shift Solenoid Valve S4) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.

HINT:

SHIFT SOLENOID VALVE OPERATION TABLE

ECM command gearshift 1st 2nd 3rd 4th 5th 6th
Shift solenoid valve S4 OFF OFF OFF OFF ON ON
  1. INSPECT TRANSMISSION WIRE (S4) 
    1. Disconnect the transmission wire connector from the transmission.
    2. Measure the resistance according to the value(s) in TRANSMISSION WIRE (S4)  .

    Standard resistance 

    TRANSMISSION WIRE (S4)

    Tester Connection Specified Condition 20°C (68°F)
    14 - Body ground 11 to 15 ohms
    Fig 1: Inspecting Transmission Wire (S4)
    G04045178Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    NG: GO TO STEP   3 

    OK: Go To Next Step 

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) 
    1. Connect the transmission connector to the transmission.
    2. Disconnect the connector from the ECM.
    3. Measure the resistance according to the value(s) in TRANSMISSION WIRE - ECM  .

    Standard resistance 

    TRANSMISSION WIRE - ECM

    Tester Connection Specified Condition 20°C (68°F)
    E4-16 (S4) - Body ground 11 to 15 ohms
    Fig 2: Checking Harness And Connector (Transmission Wire - ECM)
    G04045179Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE ECM 

  3. INSPECT SHIFT SOLENOID VALVE S4 
    1. Remove the shift solenoid valve S4.
    2. Measure the resistance according to the value(s) in SHIFT SOLENOID VALVE S4  .

      Standard resistance 

      SHIFT SOLENOID VALVE S4

      Tester Connection Specified Condition 20°C (68°F)
      Solenoid Connector (S4) - Solenoid Body (S4) 11 to 15 ohms
      Fig 3: Inspecting Shift Solenoid Valve S4
      G04045180Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
    3. Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.

    OK: 

    The solenoid makes an operating sound. 

    NG: REPLACE SHIFT SOLENOID VALVE S4 

    OK: REPAIR OR REPLACE TRANSMISSION WIRE