СИСТЕМА АВТОМАТИЧЕСКОЙ ТРАНСМИССИИ С ЭЛЕКТРОННЫМ УПРАВЛЕНИЕМ ПРОВЕРКА МАГИСТРАЛЬНОГО ДАВЛЕНИЯ


  1. PERFORM HYDRAULIC TEST


    1. Measure the line pressure.

      Note


      • Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature: 50 to 80°C (122 to 176°F).

      • The line pressure test should always be carried out in pairs. One technician should observe the conditions of wheels or wheel stoppers outside the vehicle while the other is performing the test.

      • Be careful to prevent SST hose from interfering with the exhaust pipe.

      • This check must be conducted after checking and adjusting engine.

      • Perform under condition that A/C is OFF.

      • When conducting stall test, do not continue more than 10 seconds.


      1. A01BDLJE02

        Warm up the ATF (Automatic Transmission Fluid).

      2. Lift the vehicle up.

      3. Remove the test plug on the transmission case front left side and connect SST.

        SST
        09992-00095   ( 09992-00231, 09992-00271 )

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

      5. Start the engine and check idling speed.

      6. Keep your left foot pressing firmly on the brake pedal and shift into the D position.

      7. Measure the line pressure when the engine is idling.

      8. Depress the accelerator pedal all the way down. Quickly read the highest line pressure when engine speed reaches stall speed.

      9. In the same manner, do the test in the R position.

        Standard line pressure (1KD-FTV for Hong Kong):
        Condition

        D position kPa (kgf/cm2, psi)

        R position kPa (kgf/cm2, psi)
        Idling

        425 to 494 kPa

        (4.3 to 5.0 kgf/cm2, 62 to 72 psi)

        488 to 586 kPa

        (5.0 to 6.0 kgf/cm2, 71 to 85 psi)
        Stall test

        1,097 to 1,228 kPa

        (11.2 to 12.5 kgf/cm2, 159 to 178 psi)

        1,490 to 1,812 kPa

        (15.2 to 18.5 kgf/cm2, 216 to 263 psi)
        Standard line pressure (1KD-FTV except Hong Kong):
        Condition

        D position kPa (kgf/cm2, psi)

        R position kPa (kgf/cm2, psi)
        Idling

        383 to 442 kPa

        (3.9 to 4.5 kgf/cm2, 56 to 64 psi)

        488 to 586 kPa

        (5.0 to 6.0 kgf/cm2, 71 to 85 psi)
        Stall test

        1,117 to 1,255 kPa

        (11.4 to 12.8 kgf/cm2, 162 to 182 psi)

        1,272 to 1,605 kPa

        (13.0 to 16.4 kgf/cm2, 184 to 233 psi)
        Standard line pressure (2KD-FTV):
        Condition

        D position kPa (kgf/cm2, psi)

        R position kPa (kgf/cm2, psi)
        Idling

        318 to 377 kPa

        (3.2 to 3.8 kgf/cm2, 46 to 55 psi)

        559 to 673 kPa

        (5.7 to 6.9 kgf/cm2, 81 to 98 psi)
        Stall test

        1,011 to 1,135 kPa

        (10.3 to 11.6 kgf/cm2, 147 to 165 psi)

        1,293 to 1,571 kPa

        (13.2 to 16.0 kgf/cm2, 187 to 228 psi)
        Evaluation:
        Problem Possible cause
        Measured values are higher than specified in all positions

        • Shift solenoid valve (SLT) defective

        • Regulator valve defective
        Measured values are lower than specified in all positions

        • Shift solenoid valve (SLT) defective

        • Regulator valve defective

        • Oil pump defective

        • O/D direct clutch defect
        Pressure is low in the D position only

        • D position circuit fluid leak

        • Forward clutch defective
        Pressure is low in the R position only

        • R position circuit fluid leak

        • Direct clutch defective

        • 1st & reverse brake defective