Toyota Corolla Repair Manual: Hydraulic test

Toyota Corolla Repair Manual / Diagnostics / Electronic controlled automatic transaxle / Hydraulic test

1. Perform hydraulic test

Measure the line pressure.

Notice

Do the test at normal operation atf 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 stopper 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 transaxle case front left side and connect sst.
Sst 09992–00095 (09992–00231, 09992–00271)
fully apply the parking brake and chock the 4 wheels.
Connect an obd ii scan tool or hand–held tester to the dlc3.
Start the engine and check the 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.
Depress the accelerator pedal all the way down.
Quickly read the highest line pressure when the engine speed reaches the stall speed.
Do the test in the r position in the same way.

Specified line pressure:

Evaluation:

Problem	Possible cause
If the measured values at all positions are higher	Line pressure control solenoid (slt) defective Regulator valve defective
If the measured values at all positions are lower	Line pressure control solenoid (slt) defective regulator valve defective oil pump defective o/d direct clutch defective
If pressure is low in the d position only	D position circuit fluid leak forward clutch defective
If pressure is low in the r position only	R position circuit fluid leak direct clutch defective 1st and reverse brake defective

Mechanical system tests

1. Perform mechanical system tests Measure the stall speed. The object of this test is to check the overall performance of the transaxle and engine by measuring the stall speeds in the d an ...

Manual shifting test

1. Perform manual shifting test Hint: by this test, it can be determined whether the trouble is within the electrical circuit or is a mechanical problem in the transaxle. Disconnect the tra ...

Other materials:

Using the steering wheel switches
The steering wheel switches can be used to operate a connected cellular phone or portable digital audio player (portable player). Operating a Bluetooth® phone using the steering wheel switches 1 Volume The voice guidance volume cannot be adjusted using these buttons. 2 Off-hook switch Turns t ...

Playing audio CDs and MP3/WMA discs
CD player operation Insert a disc or press to begin listening to a disc. 1 Power 2 Volume 3 Eject a disc 4 Repeat play 5 Random playback 6 Select a track/file or display track/folder list 7 Displays text message 8 Playback 9 Select a folder (MP3/WMA discs only), fast-forward or revers ...

When the contact is empty
You can transfer the phone numbers in a Bluetooth® phone to the system. Operation methods differ between PBAP (Phone Book Access Profile) compatible and PBAP incompatible Bluetooth® phones. If the cellular phone does not support either PBAP or OPP (Object Push Profile) service, you cannot trans ...