Rear Disc Brake
Rear Disc Brake
COMPONENT LOCATION
COMPONENT LOCATIONS
GENERAL
The rear brakes on all models feature ventilated brake discs, with different diameter brake discs dependant on variant. The brakes feature single piston sliding calipers, vehicles with standard brakes are fitted with 354mm discs. Vehicle with high performance brakes are fitted with 365mm diameter discs. The parking brake are common on all models.
The brake caliper is attached to the rear of the rear knuckle. The brake pads are made from an asbestos free material. The inboard brake pad of the right rear brake incorporates a wear sensor.
When hydraulic pressure is supplied to the caliper, the piston extends and forces the inner pad against the disc. The caliper body reacts and slides on the guide pins to bring the outer pad into contact with the disc.
The rear brake pad wear sensor is connected in series with the front brake pad wear sensor, between the instrument cluster and ground. When a brake pad incorporating a brake pad wear sensor is approximately 75% worn, the brake pad wear sensor goes open circuit. When the instrument cluster detects the open circuit, it illuminates the the brake warning indicator, displays an appropriate warning in the message center and sounds a warning chime. For additional information, refer to Instrument Cluster Description and Operation
At the beginning of each ignition cycle, the instrument cluster performs a bulb check on the brake warning indicator: the indicator is illuminated amber for 1.5 seconds, then red for 1.5 seconds.