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Home >> Toyota >> 2014 >> Highlander XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 40 (Automatic Transmission (U760E) - Diagnostic Codes) >> Automatic Transaxle System >> DTC P2757: Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU) [12/2013 - 11/2015] >> 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 [12/2013 - ]

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. ACTIVE TEST 
    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.

      Powertrain > Engine > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Activate the Lock Up Controls the shift solenoid SLU and SL to set the automatic transaxle to the lock-up condition. ON/OFF Can be used to check SLU and SL solenoid operation.
      [Vehicle Condition]
      • Throttle valve opening angle: Less than 20%
      • Vehicle speed:60 km/h (37 mph) or more, and 6th gear

      Powertrain > Engine > Active Test 

      Tester Display
      Activate the Lock Up

      HINT: 

      • This test can be conducted when the vehicle speed is 60 km/h (37 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, but not fully, the accelerator pedal in order to decelerate. (Fully releasing the pedal will close the throttle valve and lock-up may be turned off.)
      Fig 1: Powertrain > Engine > Active Test
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