Last Modified: 12-11-2024 6.11:8.1.0 Doc ID: RM100000002OT5G
Model Year Start: 2025 Model: GR Corolla Prod Date Range: [09/2024 -           ]
Title: UC80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: HYDRAULIC TEST; 2025 MY Corolla Corolla Hatchback GR Corolla [09/2024 -        ]

HYDRAULIC TEST

PERFORM HYDRAULIC TEST

(a) Measure the line pressure.

NOTICE:

  • Perform this test with the ATF (Automatic Transaxle Fluid) at the normal operating temperature: 50 to 80°C (122 to 176°F)
  • Be careful to prevent the SST hose from contacting the exhaust pipe.
  • This check must be conducted after checking and confirming that the engine is normal.
  • Perform this test with the air conditioning off.
  • The installation position of SST is different for the D position and R position line pressure tests.

(1) Remove the transmission oil cooler.

Click here 2025 MY Corolla Corolla Hatchback GR Corolla [09/2024 -        ]; UC80F (AUTOMATIC TRANSMISSION / TRANSAXLE): OIL COOLER: REMOVAL

HINT:

It is not necessary to disconnect the hoses from the transmission oil cooler.

(2) Remove the No. 2 transmission oil cooler bracket.

Click here 2025 MY Corolla Corolla Hatchback GR Corolla [09/2024 -        ]; UC80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE ASSEMBLY: REMOVAL+

(3) Remove the test plug A on the front side of the transaxle case and install SST.

SST: 09993-19016

09993-00011

09993-00041

*a

Test Plug A

(4) Restore the vehicle to a state that the engine can be started.

NOTICE:

Do not install the transmission oil cooler bracket.

(5) Warm up the ATF.

(6) Fully apply the parking brake and chock all 4 wheels.

(7) Start the engine and check the idle speed.

(8) Depress the brake pedal and move the shift lever to D.

(9) Measure the line pressure while the engine is idling.

Specified Line Pressure:

Condition

D Position

Engine idling

500 to 700 kPa

(5.1 to 7.1 kgf/cm 2 , 73 to 102 psi)

(10) Turn the ignition switch off.

(11) Remove SST and install the test plug A.

(12) Restore the vehicle back to normal.

(13) Remove the test plug B on the left side of the transaxle case and install SST.

*a

Test Plug B

SST: 09993-19016

09993-00011

09993-00041

(14) Start the engine and check the idle speed.

(15) Depress the brake pedal and move the shift lever to R.

(16) Measure the line pressure while the engine is idling.

Specified Line Pressure:

Condition

R Position

Engine idling

500 to 750 kPa

(5.1 to 7.6 kgf/cm 2 , 73 to 109 psi)

(17) Turn the ignition switch off.

(18) Remove SST and install the test plug B.

(19) Clear the DTCs.