OEM 2002 Toyota Prius Brake Master Cylinder

2002 Toyota Prius Parts Questions & Experts Answers

• Q: What steps should be taken before starting work on the Brake Master Cylinder on 2002 Toyota Prius?

  A: Open the ignition switch to an OFF position followed by depressing the brake pedal for more than forty times before Brake Master Cylinder work begins because the power supply system pressure release causes brake pedal reaction force to become heavy. Turn the ignition switch to ON only after the work operation is fully finished. The first step involves drawing fluid through a syringe but keeping brake fluid away from painted surfaces so immediate cleaning is necessary. Start by removing the top panel from the outer cowl for the front and disassembling the converter combined with inverter assembly before disconnecting both reservoir hoses and all four brake lines using Special Service Tool: 09023-00100 where brake lines need a torque setting at 15 Nm (155 kgf-cm, 11 ft. lbs.). The work process begins with removal of the front door scuff plate followed by the cowl side trim and lower finish panel and finish panel after extraction of the return spring along with its clip and clevis pin and wave washer. Following removal of the master cylinder assembly require torque application to 4 installation nuts at 13 Nm (130 kgf-cm, 9 ft. lbs.) so professionals can extract assembly, master cylinder, and gasket. The process of installation follows removal steps because post-installation requires brake fluid addition to the reservoir followed by brake system bleeding then leak testing.