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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 P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) >> 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.
  1. INSPECT TRANSMISSION WIRE(SLU) 
    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)
      13(SLU+)-5(SLU-) 5.0 to 5.6 Ω
    3. Measure the resistance according to the value(s) in the table below.

      Standard (Check for short): 

      Fig 1: Tester Connection Specified Condition Chart (Check For Short)
      G02584815Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 2: Inspecting Transmission Wire (SLU)
      G02584816Courtesy 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 wire connector to the transmission.
    2. Disconnect the ECM connector.
    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 - 15 (SLU+) - E5 - 14 (SLU-) 5.0 to 5.6 Ω
    4. Measure the resistance according to the value(s) in the table below.

      Standard (Check for short): 

      Fig 3: Tester Connection Specified Condition Chart (Check For Short)
      G02584817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 4: Checking Harness And Connector (Transmission Wire - ECM)
      G02584818Courtesy 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(SLU) 
    1. Remove the shift solenoid valve SLU.
    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)
      1 -2 5.0 to 5.6 Ω
    3. Connect the positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve.

      OK: 

      The solenoid makes an operating sound. 

      Fig 5: Inspecting Shift Solenoid Valve (SLU)
      G02584819Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE SHIFT SOLENOID VALVE (SLU) (SEE  TRANSMISSION VALVE BODY ASSY (A750E/A750F)  ) 
    2. OK: GO TO NEXT STEP. 

      REPAIR OR REPLACE  TRANSMISSION WIRE (A750E/A750F)