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Home >> Toyota >> 2019 >> Sequoia SR5, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Automatic Transmission (Ab60E) - Diagnostic Codes (2 Of 2) & Circuit Tests) >> Automatic Transmission System >> DTC P2757: Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU) [08/2017 - 08/2019] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different variant/trim than selected.
NOTE:

Perform the universal trip to clear permanent DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).

  1. ACTIVE TEST 

    HINT: 

    Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

    1. Warm up the engine.
    2. Turn the ignition switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine and ECT / Active Test.
    7. According to the display on the Techstream, perform the Active Test.
      ENGINE AND ECT

      Tester Display Test Part Control Range Diagnostic Note
      Activate the Lock Up Control shift solenoid SLU to set automatic transmission to lock-up condition ON or OFF Possible to check shift solenoid valve SLU operation
      [Vehicle Condition]
      • Vehicle speed: 70 km/h (44 mph) or more
      • Gear: Highest gear
      • Throttle valve opening angle: 20% or more

      HINT: 

      • This test can be conducted when the vehicle speed is 70 km/h (44 mph) or more.
      • Perform this test while driving in the 6th gear.
    8. Lightly depress the accelerator pedal and check that the engine speed does not change abruptly.
      GTY595341Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      • When changing the accelerator pedal opening angle while driving, if the engine speed does not change, lock-up is on.
      • Slowly release the accelerator pedal in order to decelerate, but do not fully release the pedal. (Fully releasing the pedal will close the throttle valve and lock-up may be turned off automatically.)