Mazdaspeed6 L4-2.3L Turbo (2006)
Brake Proportioning/Combination Valve: Testing and Inspection
DUAL PROPORTIONING VALVE INSPECTION (WITHOUT ABS/TCS OR DSC)
1. Connect the SSTs to the brake pipes as shown in the figure.
2. Bleed the air from the brake system.
3. Measure the fluid pressure of the master cylinder and the rear brake.
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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/cm2, 2 355.3 psi) (A): 2,250 kPa (22.95 kgf/cm 326.4 psi)
-2,650 kPa (27.02 kgf/cm2 384.3 psi) (A')
Rear brake fluid pressure when front brake fluid pressure at 5,880 kPa 160 kgf/cm2853 psi) (B): 3,180 kPa (32.43 kgf/cm2' 461.3 psi) -3,780
kPa (38.54 kgf1crn2 548.2 psi) (B')
