Prius L4-1.8L (2ZR-FXE) Hybrid (2010)
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Brake Bleeding: Service and Repair
BRAKE SYSTEM (OTHER): BRAKE FLUID: BLEEDING
CAUTION:
The Techstream must be used for air bleeding. If not used, the air bleeding will be incomplete, which is hazardous and may lead to an
accident.
NOTICE:
*
Perform air bleeding with park (P) selected and the parking brake applied.
*
As brake fluid may overflow when bleeding, do not place the fluid can on the reservoir filler opening.
*
Perform air bleeding while maintaining the brake fluid level between the MIN/MAX level on the brake fluid reservoir.
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Air bleeding will be difficult if the following occurs:
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The brake actuator hose (the hose between the brake booster pump and brake fluid reservoir) is lowered into the fluid and air
enters the hose.
*
During the air bleeding procedure, air enters the brake booster pump while operating the pump motor.
*
While performing air bleeding, the accumulator pressure drop may cause a buzzer to sound. As there is no problem, continue with
the operation.
*
During air bleeding, DTCs for pressure sensor malfunctions, etc. may be stored. After air bleeding and if instructed in the
procedures, clear the DTCs.
*
Release the parking brake while the linear valve offset calibration procedure.
*
Do not allow brake fluid to adhere to any painted surface such as the vehicle body. If brake fluid leaks onto any painted surface,
immediately clean it off.
*
When bleeding air, select the suitable procedure according to the table below.
1. BLEED BRAKE LINE
(a) Remove the center cowl top ventilator cover.
(1) Slide the hood to cowl top seal and disengage the claw.
(2) Disengage the 2 claws and 3 guides, and remove the center cowl top ventilator cover.
(b) Bleed brake line.
(1) Remove the brake master cylinder reservoir filler cap assembly.
(2) Add brake fluid into the reservoir between MAX and MIN level on the brake fluid reservoir.
Brake fluid:
SAE J1703 or FMVSS No. 116 DOT3
(3) Connect the Techstream to the DLC3 and turn the power switch on (IG).