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Home >> Toyota >> 2020 >> RAV4 LE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 168 (Automatic Transaxle System (UB80E) - Diagnostic Codes (2 Of 3)) >> Automatic Transaxle System >> DTC P0740-7E: Torque Converter Clutch Actuator Stuck On [11/2018 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different variant/trim than selected.
NOTE:
  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 / Transmission / Active Test.
    7. According to the display on the Techstream, perform the Active Test.

      Powertrain > Transmission > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Activate the Lock Up Solenoid Operates the solenoid (SLU and SL) valve to control the automatic transaxle lock-up condition ON or OFF Can be used to check the operation of the solenoid (SLU and SL) valve.
      [Vehicle Condition]
      • Vehicle speed: 80 km/h (50 mph) or more
      • Gear: Highest gear
      • Throttle valve opening angle: Less than 20%

      Powertrain > Transmission > Active Test 

      Tester Display
      Activate the Lock Up Solenoid

      HINT: 

      This test can be conducted when the vehicle speed is 80 km/h (50 mph) or more.

    8. Lightly depress the accelerator pedal and check that the engine speed does not change abruptly.

      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 prohibited.)
      Fig 1: Powertrain > Transmission > Active Test
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