Rear Brake Flexible Hose Installation

Brake. Lexus Gs430, Gs300. Uzs190 Grs190
Brake. Lexus Gs430, Gs300. Uzs190 Grs190

  1. INSTALL REAR BRAKE FLEXIBLE HOSE

  2. DISABLE BRAKE CONTROL (w/ ECB)

  3. FILL RESERVOIR WITH BRAKE FLUID (w/ VSC)

  4. FILL RESERVOIR WITH BRAKE FLUID (w/ ECB)

  5. BLEED BRAKE LINE (w/ VSC)

  6. BLEED REAR BRAKE SYSTEM (w/ ECB)

  7. CHECK FLUID LEVEL IN RESERVOIR (w/ VSC)

  8. CHECK BRAKE FLUID LEVEL (w/ ECB)

  9. CHECK AND CLEAR DTC (w/ VSC)

  10. CHECK AND CLEAR DTC (w/ ECB)

  11. INSPECT BRAKE FLUID LEAKAGE

  12. INSTALL REAR WHEEL

Rear Brake Flexible Hose -- Installation



1. INSTALL REAR BRAKE FLEXIBLE HOSE


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Connect the rear brake flexible hose with the union bolt and a new gasket.

    Torque:
    30 N*m{306 kgf*cm, 22 ft.*lbf}
    NOTICE:
    Install the flexible hose lock securely in the lock hole in the disc brake cylinder assembly rear.
  1. Connect the brake tube to rear brake flexible hose with SST while holding rear brake flexible hose with a wrench.

    SST
    09023-00101
    Torque:
    15 N*m{155 kgf*cm, 11 ft.*lbf}
    NOTICE:
    1. Do not bend or damage the brake tube.
    2. Do not allow any foreign matter such as dirt and dust to enter the brake tube from the connecting points.
  1. Install the flexible hose with a new clip.

    NOTICE:
    1. When installing the rear brake flexible hose, face the identification mark to the outside of the vehicle and minimize twisting of the hose.
    2. Install the clip as far as it will go.


2. DISABLE BRAKE CONTROL (w/ ECB)
  1. Move the shift lever to the P position and apply the parking brake.



    Lexus Gs430, Gs300. Uzs190 Grs190.Brake.Brake System.Rear Brake Flexible Hose  Installation
  1. Connect the intelligent tester to the DLC3 with the engine switch off.



  1. Remove the 2 ABS motor relays with the engine switch off from the engine room relay block No.3.


    Lexus Gs430, Gs300. Uzs190 Grs190.Brake.Brake System.Rear Brake Flexible Hose  Installation

  1. Turn the engine switch on (IG).

    NOTICE:
    Do not start the engine.
  1. Turn the intelligent tester on and select "DIAGNOSTIC MENU"→"ABS/VSC"→"ECB UTILITY"→"ECB INVALID".



3. FILL RESERVOIR WITH BRAKE FLUID (w/ VSC)


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Fill reservoir with brake fluid.

    Fluid:
    SAE J1703 or FMVSS No. 116 DOT3


4. FILL RESERVOIR WITH BRAKE FLUID (w/ ECB)
NOTICE:
If brake fluid leaks onto any painted surface, clean it off completely.


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Add brake fluid into the reservoir.

    Fluid:
    SAE J1703 or FMVSS No.116 DOT3


5. BLEED BRAKE LINE (w/ VSC)
NOTICE:
Bleed the air from the wheel furthest from the master cylinder.
  1. Connect a vinyl tube to the bleeder plug.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Depress the brake pedal several times, then loosen the bleeder plug with the pedal depressed.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. When fluid stops coming out, tighten the bleeder plug, then release the brake pedal.

  1. Repeat (b) and (c) until all the air in the fluid is completely bled out.

  1. Using SST, tighten the bleeder plug completely.

    SST
    09023-00101
    Torque:
    11 N*m{112 kgf*cm, 8 ft.*lbf}
  1. Repeat the above procedures for each wheel to bleed the air from the brake line.



6. BLEED REAR BRAKE SYSTEM (w/ ECB)
NOTICE:
Bleed the air by following the prompts displayed on the intelligent tester.
  1. Turn the engine switch off.

  1. Install the 2 ABS motor relays to the engine room relay block No.3.

    NOTICE:
    Install ABS motor relays before bleeding the air from the rear brake system.
  1. Turn the engine switch on (IG) and turn the intelligent tester on.

  1. Cancel "DISABLE BRAKE CONTROL" on the intelligent tester.

    HINT:
    If the brake control has been disabled by the tester.
  1. Clear the DTC.

  1. Turn the intelligent tester on and select "DIAGNOSTIC MENU"→"ABS/VSC"→"ECB UTILITY"→"ECB INVALID".

  1. With the brake pedal depressed, bleed air from the bleeder plug on the rear disc brake cylinder LH.

    NOTICE:
    Keep the fluid inside the reservoir above the LOW level by replenishing.
    HINT:
    1. Depress and hold the brake pedal.
    2. After the solenoid operates for approximately 30 seconds, release the brake pedal to stop the solenoid.
    3. Repeat the procedures until air is completely bled from the rear brake system.
    4. The ECB warning light comes on and the buzzer sounds while bleeding, but they do not indicate a malfunction.
    Torque:
    11 N*m{112 kgf*cm, 8 ft.*lbf}
  1. Tighten the bleeder plug after bleeding.

  1. With the brake pedal depressed, bleed air from the bleeder plug on the rear disc brake cylinder RH.

    NOTICE:
    Keep the fluid inside the reservoir above the LOW level by replenishing.
    HINT:
    1. Depress and hold the brake pedal.
    2. After the solenoid operates for approximately 30 seconds, release the brake pedal to stop the solenoid
    3. Repeat the procedures until air is completely bled from the rear brake system.
    4. The ECB warning light comes on and the buzzer sounds while bleeding, but they do not indicate a malfunction.
  1. Tighten the bleeder plug after bleeding.

    Torque:
    11 N*m{112 kgf*cm, 8 ft.*lbf}
  1. Cancel "DISABLE BRAKE CONTROL" on the intelligent tester.



7. CHECK FLUID LEVEL IN RESERVOIR (w/ VSC)
  1. Check the fluid level and add fluid if necessary.

    Fluid:
    SAE J1703 or FMVSS No. 116 DOT3
    If fluid leaks, tighten or replace the leaking part.


8. CHECK BRAKE FLUID LEVEL (w/ ECB)
  1. After performing accumulator zero down (accumulator depressurizing), adjust the fluid level in the master cylinder reservoir to the MAX level.

    HINT:
    1. After performing accumulator zero down (accumulator depressurizing), fluid is built up in the accumulator by turning the engine switch on (IG) and the fluid level lowers.
    2. If the fluid level is adjusted without performing accumulator zero down (accumulator depressurizing), fluid is sent from the accumulator to the reservoir. The fluid level may exceed the MAX level, but it is normal.


9. CHECK AND CLEAR DTC (w/ VSC)
(Click here)


10. CHECK AND CLEAR DTC (w/ ECB)
(Click here)


11. INSPECT BRAKE FLUID LEAKAGE


12. INSTALL REAR WHEEL
Torque:
103 N*m{1,050 kgf*cm, 76 ft.*lbf}