SS20556 Delphi ABS SPEED SENSOR

The ABS speed sensor is an essential part that detects wheel rotation speeds, feeding critical data to the anti-lock braking system (ABS). Its primary use is in vehicles where precise speed monitoring is necessary for optimal performance and safety. This sensor offers improved road handling by promptly activating the ABS when wheels start to lock up, thereby preventing skidding and maintaining control. Manufactured by Delphi as SS20556, it has dimensions of 50.0 x 120.0 x 220.0 mm. Dimensions are provided by the supplier and may include packaging dimensions. ABS Controllers, also known as ABS modules, are electronic control units that manage the Anti-lock Braking System. Typically located within the engine compartment, these units receive wheel speed sensor data to detect and prevent wheel lockup during braking events. Utilizing hydraulic control valves, the controller modulates brake pressure to individual wheels, maintaining directional stability and minimizing stopping distance. Modern units often integrate with stability control systems and feature self-diagnostic capabilities, storing fault codes for troubleshooting. Calibration and programming are frequently required upon replacement, and many units contain internal sensors requiring verification during testing.