HYDRAULIC TEST
PERFORM HYDRAULIC TEST
(a) Measure the line pressure.
CAUTION:
A line pressure test should always be carried out with at least 2 people. One person should observe the condition of wheels and wheel chocks while the other is performing the test.
NOTICE:
(1) Warm up the ATF.
(2) Lift the vehicle.
(3) Remove the engine under cover.
(4) Remove the test plug A on the front side of the transaxle case and install SST.
SST: 09993-19015
09993-00010
09993-00040
*a | Test Plug A |
(5) Lower the vehicle.
(6) Fully apply the parking brake and chock all 4 wheels.
HINT:
When the electric parking brake switch assembly is pulled 2 times (2 lock operations), the maximum amount of braking force is applied.
(7) Start the engine and check the idle speed.
(8) Keep your left foot firmly on the brake pedal and move the shift lever to D.
(9) Measure the line pressure with the engine idling.
(10) Depress the accelerator pedal as much as possible with your right foot. Quickly read the highest line pressure reading when the engine speed reaches stall speed.
Specified Line Pressure Condition | D Position |
---|---|
Idling | 420 to 510 kPa (4.2 to 5.3 kgf/cm2, 60 to 74 psi) |
Stall test | 1560 to 1750 kPa (15.9 to 17.9 kgf/cm2, 226 to 254 psi) |
(11) Turn the engine switch off.
(12) Remove SST and install the test plug A.
(13) Remove the test plug B on the left side of the transaxle case and install SST.
*a | Test Plug B |
SST: 09993-19015
09993-00010
09993-00040
(14) Start the engine and check the idle speed.
(15) Keep your left foot firmly on the brake pedal and move the shift lever to R.
(16) Measure the line pressure with the engine idling.
(17) Depress the accelerator pedal as much as possible with your right foot. Quickly read the highest line pressure reading when the engine speed reaches stall speed.
Specified Line Pressure Condition | R Position |
---|---|
Idling | 560 to 670 kPa (5.7 to 6.9 kgf/cm2, 81 to 98 psi) |
Stall test | 1750 to 2050 kPa (17.8 to 21.0 kgf/cm2, 253 to 298 psi) |
(18) Turn the engine switch off.
(19) Remove SST and install the test plug B.
(20) Clear the DTCs.
Click here
Problem | Possible Cause |
---|---|
Measured values at all positions are higher than specified |
|
Measured values at all positions are lower than specified |
|
Pressure is low when shift lever is in D only |
|
Pressure is low when shift lever is in R only |
|
Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual > Electric Parking Brake System: Electric Parking Brake System AUTO Function Circuit
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Lexus RX (RX 350L, RX450h) 2016-2022 Owners Manual > Instrument cluster: Energy monitor/consumption screen
You can view the status of your hybrid system on the multi-information
display
and the audio system screen.
Vehicles with a navigation system (12.3-inch display): The energy monitor or
consumption screen can be displayed and operated on the side display.
Multi-information display
Audio ...