Front Brake Pad, Brake Caliper & Brake Rotor: Inspection

INSPECT BRAKE CYLINDER AND PISTON
1. Check the brake cylinder bore and the brake piston for rust or scoring.
INSPECT PAD LINING THICKNESS
1. Using a ruler, measure the pad lining thickness.
  Standard thickness: 11.0 mm (0.433 in.)
  
  Minimum thickness: 1.0 mm (0.039 in.)
  
  Fig 1: Measuring Pad Lining Thickness
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT FRONT DISC BRAKE PAD SUPPORT PLATE
1. Inspect the front disc brake pad support plate (No. 1) and the front disc brake pad support plate (No. 2).
  1. Make sure that it has sufficient rebound, no deformation cracks or wear, and all rust, dirt are cleaned off.
INSPECT DISC THICKNESS
1. Using a micrometer, measure the disc thickness.
  
  Fig 2: Measuring Disc Thickness
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard thickness: 28.0 mm (1.102 in.)
  
  Minimum thickness: 26.0 mm (1.024 in.)