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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transmission Electronic Controlled (ECT) - U241E/U140F - Diagnostics) >> DTC P2769, P2770: Torque Converter Clutch Solenoid Circuit Low/High (Shift Solenoid Valve DSL) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
  1. INSPECT TRANSMISSION WIRE (DSL) 
    1. Disconnect the transmission wire connector from the transaxle.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition 20°C (68°F)
      3 - Body ground 11 to 13Ω
      Fig 1: Inspecting Transmission Wire (DSL)
      G02908850Courtesy 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.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value (s) in the table below.
      Fig 2: Checking Harness And Connector (Transmission Wire - ECM)
      G02908851Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition 20°C (68°F)
      E8 - 9 (DSL) - Body ground 11 to 13ohm;
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
    2. OK: REPLACE ECM (See  REPLACEMENT  ) 
  3. INSPECT SHIFT SOLENOID VALVE (DSL) 
    1. Remove the shift solenoid valve DSL.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFIED CONDITION

      Tester Connection Specified Condition 20°C (68°F)
      Solenoid Connector (DSL) - Solenoid Body (DSL) 11 to 13Ω
      Fig 3: Inspecting Shift Solenoid Valve (DSL)
      G02908852Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect positive (+) lead to the terminal of solenoid connector, negative (-) lead to the solenoid body.

      OK: The solenoid valve makes an operating noise. 

    1. NG: REPLACE SHIFT SOLENOID VALVE (DSL) 
    2. OK: REPAIR OR REPLACE TRANSMISSION WIRE (See  REPLACEMENT  )