The caliper is a single piston design that is mounted to a anchor bracket with two pin bolts. The anchor bracket mounts to the steering knuckle with two bolts. Hydraulic pressure, created when the brake pedal is depressed, acts equally against the piston and the bottom of the caliper bore to move the piston outward and to slide the caliper inward. This action forces both pads against the rotor, creating friction to stop the vehicle.
Brake Pad Wear Sensors
A brake pad wear sensor is located at each wheel. The brake pad wear sensor signal is normally grounded at the EBCM through the brake pad wear sensors in a series circuit.
Brake Pad Wear Indicator
CHANGE BRAKE PADS - 125
The IPC illuminates the CHANGE BRAKE PADS - 125 indicator in the DIC when the electronic brake control module (EBCM) determines that one of the brake pads is excessively worn. The IPC receives a class 2 message from the EBCM requesting illumination.
