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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 465 (Automatic Transmission Electronic Controlled (ECT) - Diagnostics) >> Electronic Controlled Automatic Transaxle [ECT] (APR., 2003) >> DTC P2769, P2770: Torque Converter Clutch Solenoid Circuit Low/High (Shift Solenoid Valve SL) >> Inspection Procedure

Inspection Procedure

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  1. INSPECT TRANSMISSION WIRE (SL) 
    1. Disconnect the transmission wire connector from the transaxle.
    2. Measure the resistance according to the value (s) in the table below.
    3. Fig 1: Inspecting Transmission Wire (SL)
      G02860968Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    TESTER CONNECTION RESISTANCE SPECIFICATION

    Tester Connection 20 °C (68 °F)
    2-Body ground 11 to 15 Ω
    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.
    4. Fig 2: Checking Harness And Connector (Transmission Wire-ECM)
      G02860969Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Standard: 

    TESTER CONNECTION RESISTANCE SPECIFICATION

    Tester Connection Specified Condition 20°C (68°F)
    E4-13 (SL) - Body ground 11 to 15 Ω
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
    2. OK: REPLACE ECM (See  REPLACEMENT  ) 
  3. INSPECT SHIFT SOLENOID VALVE (SL) 
    1. Remove the shift solenoid valve SL.
    2. Measure the resistance according to the value (s) in the table below.
      Fig 3: Inspecting Shift Solenoid Valve (SL)
      G02860970Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      TESTER CONNECTION RESISTANCE SPECIFICATION

      Tester Connection Specified Condition 20°C (68°F)
      Solenoid Connector (SL)-Solenoid Body (SL) 11 to 15 Ω
    3. Connect the positive (+) battery lead to the solenoid connector terminal, and the negative (-) battery lead to the solenoid body for checking the solenoid valve operation.

      Standard: 

      The solenoid valve makes an operating noise. 

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