Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Dual Proportioning Valve Inspection (Without Abs/TCS Or DSC)
- Connect the SSTs to the brake pipes as shown in the figure.
- Bleed the air from the brake system.
- Measure the fluid pressure of the master cylinder and the rear brake.
- If not within the specification, replace the dual proportioning valve.
Dual proportioning valve fluid pressure (without ABS (ABS/TCS) or DSC)
Rear brake fluid pressure when front brake fluid pressure at 2,450 kPa {24.98 kgf/cm 2 , 355.3 psi} (A): 2,250 kPa {22.95 kgf/cm 2 , 326.4 psi}-2,650 kPa {27.02 kgf/cm 2 , 384.3 psi} (A')
Rear brake fluid pressure when front brake fluid pressure at 5,880 kPa {60 kgf/cm 2 , 853 psi} (B): 3,180 kPa {32.43 kgf/cm 2 , 461.3 psi}-3,780 kPa {38.54 kgf/cm 2 , 548.2 psi} (B')
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.