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Home >> Lexus >> 2006 >> IS 250 RWD, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transmission (A960E)) >> Automatic Transmission System >> DTC P0976 Shift Solenoid "B" Control Circuit Low (Shift Solenoid Valve S2): DTC P0977 Shift Solenoid "B" Control Circuit High (Shift Solenoid Valve S2) >> Wiring Diagram

DTC P0976 Shift Solenoid "B" Control Circuit Low (Shift Solenoid Valve S2): DTC P0977 Shift Solenoid "B" Control Circuit High (Shift Solenoid Valve S2): Wiring Diagram

WARNING: This page is about a different variant/trim than selected.
Fig 1: Wiring Diagram - Shift Solenoid "B" Control Circuit Low (Shift Solenoid Valve S2)
G04045765Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

ECM COMMAND GEARSHIFT CHART

ECM command gearshift 1st 2nd 3rd 4th 5th 6th
Shift solenoid valve S2 ON ON OFF OFF OFF ON
  1. INSPECT TRANSMISSION WIRE (S2) 
    1. Disconnect the transmission wire connector from the transmission.
    2. Measure the resistance according to the value(s) in the table below.

    Standard resistance 

    TESTER CONNECTION SPECIFIED CONDITION CHART

    Tester Connection Specified Condition 20°C (68°F)
    15 - Body ground 11 to 15 Ω
    Fig 2: Inspecting Transmission Wire (S2)
    G04045766Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    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 the table below.

    Standard resistance 

    TESTER CONNECTION SPECIFIED CONDITION CHART

    Tester Connection Specified Condition 20°C (68°F)
    E4-18 (S2) - Body ground 11 to 15 Ω
    Fig 3: Disconnecting E4 Connector From ECM
    G04045767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK : REPLACE ECM 

  3. INSPECT SHIFT SOLENOID VALVE S2 
    1. Remove the shift solenoid valve S2.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition 20°C (68°F)
      Solenoid Connector (S2) - Solenoid Body (S2) 11 to 15 Ω
    3. Connect positive (+) lead to the terminal of solenoid connector, negative (-) lead to the solenoid body.
    Fig 4: Inspecting Shift Solenoid Valve S2
    G04045768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: 

    The solenoid makes an operating sound. 

    NG : REPLACE SHIFT SOLENOID VALVE S2 

    OK : REPAIR OR REPLACE TRANSMISSION WIRE