Hydraulic Test

MEASURE LINE PRESSURE

NOTICE:
- Do the test at normal operating fluid temperature 50 - 80°C (122 - 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 doing the test.
- Be careful to prevent SST's hose from interfering with the exhaust pipe.

- Warm up the transmission fluid.
- Remove the test plug on the transmission case left side and connect SST. SST 09992-00094 (09992-00230)

HINT: The connection of SST will become easier by moving LH side heat insulator side.

- Chock the 4 wheels.
- Fully apply the parking brake.
- Start the engine and check idling speed.
- Keep your left foot pressed firmly on the brake pedal and shift into the D position.
- Measure the line pressure when the engine is idling.
- Fully depress the accelerator Quickly read the highest line pressure when engine speed reaches stall speed.

NOTICE: Release the accelerator pedal and stop test if the wheels begin to rotate before the engine speed reaches specified stall speed.

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





SPECIFIED LINE PRESSURE
If the measured pressures are not up to specified values, check the shift solenoid valve SLT and retest.





EVALUATION





MEASURE ACCUMULATOR BACK PRESSURE

NOTICE:
- Do the test at normal operating fluid temperature 50 - 80°C (122 - 176°F).
- Be careful to prevent the oil pressure gauge hose from interfering with the exhaust pipe.

- Warm up the transmission fluid.
- Remove the test plug on the transmission case rear right side and connect SST. SST 09992-00094 (09992-00150)

HINT: The connection of the SST will become easier by moving the RH side head insulator aside.

- Remove the passenger side floor carpet and ECM protector.
- Connect SST between ECM and connector of vehicle wire harness.
SST: 09990-01000





- Install one test lead probe into the terminal SLN of the ECM wire harness side connector and take care not to ground the other test lead probe.

HINT: Prepare test leads which are connected with 8 W light bulb.

- Fully apply the parking brake and chock the 4 wheels.
- Start the engine and check idling speed.
- Keep your left foot pressed firmly on the brake pedal and shift into the D position.
- Measure the accumulator back pressure.
- Ground the other probe or the test lead which has one end inserted into the terminal SLN of the ECM harness side connector, then measure the accumulator back pressure again.





SPECIFIED ACCUMULATOR BACK PRESSURE
(Engine idle speed and shift lever D position)





EVALUATION