Wheel End Service – Wheel Speed Sensors and Bearings
Brake & Front End
NOVEMBER 4, 2024
When wheel speed sensors (WSS) were first installed on cars and trucks, they were typically mounted on the CV joints or differentials. These sensors were not the most accurate and didn’t start working until the vehicle reached 5 to 7 mph. These are called passive wheel speed sensors. As vehicles and ABS systems advanced, the wheel speed sensors moved to the knuckles and wheel bearings.
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