Brake Pad: Testing and Inspection

Brake Pad Inspection

• It is important to inspect both front and rear brake pads during the same inspection.

Visually inspect brake pads for uneven lining wear. Also inspect for excessive lining deterioration. Test the clearance between the tips of the wear indicators (if equipped) on the pads and the brake rotors.

If a visual inspection does not adequately determine the condition of the lining, a physical test will be necessary. To test the amount of lining wear, remove the disc brake pads from the vehicle.

Brake pad Friction Material Thickness Measurement





• 1 - Brake shoe assembly friction material is to be measured at the thinnest point.

• 2 - Brake shoe assembly friction material.

• 3 - Brake shoe assembly backing plate.

Measure brake pad minimum thickness (1). Brake pads must be replaced when usable material on a brake pad lining (2) measured at its thinnest point measures one millimeter (0.04 inches) or less.

If a brake pad fails inspection, replace both disc brake pads (inboard and outboard) at each caliper. It is also necessary to replace the pads on the opposite side of the vehicle as well as the pads failing inspection to maintain proper braking characteristics.

If the brake pad assemblies do not require replacement, be sure to reinstall the brake pads in the original position they were removed from.