Proportioning Valve (For Hatchback) On-Vehicle Inspection

Brake. Yaris. Ncp93, 131
Brake System (Other). Yaris. Ncp93, 131

  1. INSPECT PROPORTIONING VALVE

Proportioning Valve (For Hatchback) -- On-Vehicle Inspection



1. INSPECT PROPORTIONING VALVE


  1. Remove the bleeder plug from the front brake caliper and rear wheel cylinder.


    Yaris. Ncp93, 131.Brake System (Other).Brake System (For Sedan).Proportioning Valve (For Hatchback) On-Vehicle Inspection

  1. Install SST and then bleed the air.

    SST
    09709-29018(09709-00060)

  1. Raise the front brake caliper pressure and inspect the rear wheel cylinder pressure.

    Standard Fluid Pressure:

    Front Brake Caliper Pressure
    		Rear Wheel Cylinder Pressure
    1500 kPa (15.3 kgf/cm2, 218 psi)
    		1500 kPa (15.3 kgf/cm2, 218 psi)
    5000 kPa (51.0 kgf/cm2, 725 psi)
    		2350 kPa (24.0 kgf/cm2, 341 psi)
    8000 kPa (81.6 kgf/cm2, 1160 psi)
    		3100 kPa (31.6 kgf/cm2, 450 psi)
    HINT:
    When inspecting the fluid pressure, inspect the left front and right rear together, and the right front and left rear together.
    If the rear wheel cylinder pressure is incorrect, replace the proportioning valve.

  1. Remove SST.

  1. Install the bleeder plug onto the front brake caliper and rear wheel cylinder.

    Torque:
    8.3 N*m{85 kgf*cm, 73 in.*lbf}

  1. Bleed the brake fluid (YARIS_NCP93 RM000003WYV009X_02_0005.html).

  1. Check the brake fluid leakage.