Anti-Lock Brake System (ABS)

The anti-lock brake system consists of the following components:

• hydraulic control unit (HCU)
• ABS module
• rear wheel speed sensor
• rear wheel speed sensor ring (integral to the ring gear)
• front wheel speed sensors
• front wheel speed sensor ring (integral to the hub and bearing assembly)
• yellow ABS warning indicator
• brake pressure switch

The front wheel speed sensor rings are integral to the front hub and bearing assemblies. For additional information, refer to FRONT SUSPENSION - 4X2 or FRONT SUSPENSION - 4X4 .

The rear wheel speed sensor ring is integral to the ring gear. For additional information, refer to REAR DRIVE AXLE/DIFFERENTIAL - FORD 8.8-INCH RING GEAR .