Component Tests and General Diagnostics

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 ATF.
- Remove the test plug on the transmission case front left side and connect SST 09992-00094 (09992-00230)
- 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 line pressure when the engine is idling.
- Press the accelerator pedal all the way down. Quickly read the highest line pressure when engine speed reaches stall speed.
- In the same way, do the test in the R position.





SPECIFIED LINE PRESSURE
If the measured pressures are not up to specified values, recheck the throttle cable adjustment 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 SST's 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 09992-00094 (09992-00094)
- Remove the passenger side No.2 under cover, front scuff plate and ECM protector.
- Connect SST (check harness A) between ECM and connector of vehicle wire harness. SST 09990-01000
- Insert 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 an 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.
- With the same conditions as in the (h), ground the other probe of 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


MANUAL SHIFTING TEST

HINT: With this test, it can be determined whether the trouble is within the electrical circuit or is a mechanical problem in the transmission.





1. DISCONNECT SOLENOID WIRE
2. INSPECT MANUAL DRIVING OPERATION
- Check that the shift and gear positions correspond with the table below.





HINT:
- If the L. 2 and D position gear positions are difficult to distinguish, do the following road test.





- While driving, shift through the L, 2 and D positions. Check that the gear change corresponds to the shift position.

- If any abnormality is found in the above test, the problem is in the transmission itself.
3. CONNECT SOLENOID WIRE
4. CANCEL OUT DTC