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Hydraulic Test [12/2012 - ]

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  1. PERFORM HYDRAULIC TEST 
    1. Measure the line pressure.
      WARNING:

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

      NOTE:
      • Perform a test at the normal operating Automatic Transaxle Fluid (ATF) temperature: 50 to 80°C (122 to 176°F)
      • Be careful to prevent the hose of SST from interfering with the exhaust pipe.
      • This check must be conducted after checking and confirming that the engine is normal.
      • Perform the test with the A/C off.
      • Do not perform the stall test for longer than 5 seconds.
      1. Warm up the ATF.
      2. Lift the vehicle up.
      3. Remove the engine under cover.
      4. Remove the test plug on the transaxle case and install SST.
        GTY366119Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        • SST: 09992-00095 
          • 09992-00231
          • 09992-00271
      5. Lower the vehicle.
      6. Fully apply the parking brake and chock the 4 wheels.
      7. Connect the Techstream to the DLC3.
      8. Start the engine.
      9. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Shift Position.

        Powertrain > Engine and ECT > Active Test 

        Tester Display
        Control the Shift Position
      10. Move the shift lever to D, and then use the Techstream to hold 3rd gear using Active Test. Measure the line pressure while the engine is idling.
        SPECIFIED LINE PRESSURE

        Condition Shift Lever in D
        Idling 360 to 430 kPa
        (3.7 to 4.4 kgf/cm2 , 52 to 62 psi)
      11. Turn the ignition switch off.
      12. Disconnect the harness connector from the wiring harness connector.

        HINT: 

        Disconnect the connector only when performing the D position stall test.

        Fig 1: Locating Transmission Wire Connector
        GTY375699Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      13. Start the engine.
      14. Firmly depress the brake pedal, move the shift lever to D, depress the accelerator pedal all the way down, and check the line pressure while the stall test is performed.
        SPECIFIED LINE PRESSURE

        Condition Shift Lever in D
        Stall test 1160 to 1350 kPa
        (11.8 to 13.8 kgf/cm2 , 168 to 196 psi)
      15. Turn the ignition switch off.
      16. Connect the harness connector, depress the brake pedal firmly, move the shift lever to R, and check that the line pressure while the engine is idling and during the stall test.
        SPECIFIED LINE PRESSURE

        Condition Shift Lever in R
        Idling 670 to 820 kPa
        (6.8 to 8.4 kgf/cm2 , 97 to 119 psi)
        Stall test 1650 to 1910 kPa
        (16.8 to 19.5 kgf/cm2 , 239 to 277 psi)
      17. Remove SST, install the test plug.
      18. Clear the DTCs.

        Refer to DTC CHECK / CLEAR [12/2012 - ] 

        Powertrain > Engine and ECT > Clear DTCs 

        EVALUATION

        Test Result Possible Cause
        Measured values are higher than the specified value in all positions
        • Shift solenoid valve SLT defective
        • Regulator valve defective
        Measured values are lower than the specified value in all positions
        • Shift solenoid valve SLT defective
        • Regulator valve defective
        • Oil pump defective
        Pressure is low in D only
        • D position circuit fluid leak
        • Clutch No. 1 (C1) defective
        Pressure is low in R only
        • R position circuit fluid leak
        • Brake No. 2 (B2) defective
        • Brake No. 3 (B3) defective
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