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Home >> Toyota >> 2003 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 769 (Automatic Transmission Electronic Controlled (ECT) - A750E/A750F - (1GR-FE) - Diagnostics) >> DTC P0976, P0977: Shift Solenoid "B" Control Circuit Low/High (Shift Solenoid Valve S2) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

  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: 

      TESTER CONNECTION SPECIFIED CONDITION (1 OF 3)

      Tester Connection Specified Condition 20°C (68°F)
      15 - Body ground 11 to 15 Ω
      Fig 1: Inspecting Transmission Wire (S2)
      G02584774Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: Go to step   3 
    2. 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: 

      TESTER CONNECTION SPECIFIED CONDITION (2 OF 3)

      Tester Connection Specified Condition 20°C (68°F)
      E5 - 10 (S2) - Body ground 11 to 15 Ω
      Fig 2: Checking Harness And Connector (Transmission Wire - ECM)
      G02584775Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (SEE  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
    2. OK: GO TO NEXT STEP 

    REPLACE  ECM (1GR-FE) 

  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: 

      TESTER CONNECTION SPECIFIED CONDITION (3 OF 3)

      Tester Connection Specified Condition 20°C (68°F)
      Solenoid Connector (S2) - Solenoid Body (S2) 11 to 15 Ω
      Fig 3: Inspecting Shift Solenoid Valve (S2)
      G02584776Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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. 

    1. NG: REPLACE SHIFT SOLENOID VALVE (S2) (SEE  TRANSMISSION VALVE BODY ASSY (A750E/A750F)  ) 
    2. OK: GO TO NEXT STEP 

    REPAIR OR REPLACE  TRANSMISSION WIRE (A750E/A750F)