GS 460 V8-4.6L (1UR-FSE) (2008)
Brake Bleeding: Service and Repair
BRAKE: BRAKE FLUID (for 1UR-FSE): BLEEDING
BRAKE: BRAKE FLUID
CAUTION:
Bleeding without the Techstream may result in air remaining in the brake hydraulic system. As this can cause an accident, be sure to use the Techstream
for air bleeding.
NOTICE:
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Move the shift lever to the P position and apply the parking brake before bleeding the brakes.
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Add brake fluid to keep the level between MIN and MAX lines of the reservoir while bleeding the brakes.
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If the pump motor operates while air remains inside the brake reservoir tube no.1 hose, the air will enter the actuator, resulting in difficulty
in bleeding. Keep the 2 ABS motor relays removed until instructed to reinstall them to prevent air from entering the brake reservoir tube
no.1 hose.
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The actuator pump motor and solenoid can be operated by the driver even if the engine switch is off.
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Although a buzzer may sound due to declined accumulator pressure during bleeding, keep on bleeding.
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DTCs indicating a malfunction in the ABS motor relay or pressure sensor are stored after bleeding. Clear the DTCs when instructed during
or after bleeding.
Work list
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*1 : The listed order must be followed.
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*2 : If air enters the brake reservoir tube No.1 hose due to declined brake fluid level, be sure to bleed the brake reservoir tube No.1 hose.
HINT:
Refer to the Techstream operator's manual for further details.
1. DISABLE BRAKE CONTROL
(a) Move the shift lever to the P position and apply the parking brake.
(b) Connect the Techstream to the DLC3 with the engine switch off.