OEM 2006 Toyota Prius Brake Master Cylinder

2006 Toyota Prius Parts Questions & Experts Answers

• Q: How to service and repair the Brake Master Cylinder and Brake Stroke Simulator Cylinder on 2006 Toyota Prius?

  A: One must start Brake Master Cylinder and Brake Stroke Simulator Cylinder service and repair steps by taking off the windshield wiper motor and link assembly followed by shutting off the brake control (ECB) before conducting brake fluid bleeding. The pump motor operation should be prevented while there is air in the brake actuator hose by either taking off relays No. 1 and No. 2 through power switch off or choosing "ECB INVALID" on the intelligent tester. The maintenance starts with draining brake fluid from the outside front cowl top panel sub-assembly while cleaning off all paint-touching fluid residues. Proceed with Special Service Tool: 09023-00101 to detach two brake tubes and the connector and remove two nuts and bolts as well as the brake stroke simulator cylinder with its bracket. First detach the 2 bolts as well as the connector clamp and bracket from the brake stroke simulator cylinder platform before removing the 2 stud bolts. Begin setup by fastening the 2 stud bolts onto the brake stroke simulator cylinder at 5.0 Nm then fix the brake stroke simulator cylinder to the bracket through 2 bolts torqued at 6.0 Nm. You should install the connector clamp to the bracket before connecting the brake stroke simulator cylinder with bracket to the body by twisting two nuts and two bolts to 8.5 Nm (87 kgf-cm, 75 inch lbs.). Attain the brake tubes to the brake stroke simulator cylinder through Special Service Tool: 09023-00101 by applying 15 Nm (155 kgf-cm, 11 ft. lbs.) torque and reassemble the connector. The process concludes with installation of front cowl top panel sub-assembly followed by windshield wiper motor assembly. After fluid addition to the reservoir, perform brake fluid bleed-through before leak detection then check fluid level. Clear any stored DTCs then initialize systems while performing operation checks.