CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM(for 1ZR-FAE) HYDRAULIC TEST


  1. PERFORM HYDRAULIC TEST


    1. Measure the secondary oil pressure.

      CAUTION:

      A secondary oil pressure test should always be carried out with at least 2 people. One person should observe the condition of the wheels and wheel chocks while the other is performing the test.

      Note


      • This test must be performed after checking and confirming that the engine is normal.

      • Perform this test with the CVT fluid temperature between 50 and 100°C (122 and 212°F).

      • Perform this test with the air conditioning off.

      • Do not perform the stall speed test for more than 5 seconds.

      • When performing the stall speed test repeatedly, wait for 15 seconds or more between tests.


      1. Fully apply the parking brake and chock all 4 wheels.

      2. Connect the GTS to the DLC3.

      3. Start the engine.

      4. Turn the GTS on.

      5. Enter the following menus: Powertrain / Engine and ECT / Active Test / Connect the TC and TE1.

        Tech Tips

        Observe the value of A/T Oil Pressure in the Data List while performing the Active Test.


        Powertrain > Engine and ECT > Active Test
        Active Test Display
        Connect the TC and TE1
        Data List Display
        A/T Oil Pressure

      6. Keep your left foot firmly on the brake pedal and move the shift lever to D.

      7. Depress the accelerator pedal as much as possible with your right foot. Quickly read the highest secondary oil pressure reading when the engine speed reaches stall speed and release the accelerator pedal immediately.

      8. Keep your left foot firmly on the brake pedal and move the shift lever to R.

      9. Depress the accelerator pedal as much as possible with your right foot. Quickly read the highest secondary oil pressure reading when the engine speed reaches stall speed and release the accelerator pedal immediately.

        Tech Tips

        If the secondary oil pressure exceeds the maximum value or drops below the minimum value, a solenoid valve, regulator valve or modulator valve may be malfunctioning.