2023 March 5th Week KYOCM News Recommendation - Servicing Wheel Speed Sensors and Bearings


The only way to diagnose the sensor and circuit is with a scan tool or scope.

As technology evolves, it seems to become harder to master. Technology should serve to make our lives easier, but sometimes the process of learning about the tech or diagnosing issues with it becomes strenuous.

Take wheel speed sensors, for example. They have been upgraded through the years but require more specific tools to diagnose issues.

In this Tire Review Continental Tire Garage Studio video, we discuss the different types of wheel speed sensors and review the inspection and diagnostic process.

Wheel speed sensors were first installed on vehicles to aid the anti-lock braking system. Initially, these sensors were mounted on the CV joints or differentials and weren’t the most exact. These sensors were known as passive wheel speed sensors as they only began to work when the vehicle reached speeds of 5 to 7 miles per hour.

As vehicles and ABS systems advanced, wheel speed sensors moved to the knuckles and wheel bearings. These advanced sensors, known as active sensors, can detect small amounts of movement in the wheels even when the vehicle is barely moving. However, the inspection and diagnostic process for active sensors is more challenging. To diagnose issues with active sensors, a scan tool or scope must be used.

Scan tools have a significant advantage in that they can graph multiple-wheel speed sensor outputs on a test drive. Scan tools can also show changes in the values and detect if a code is set. Even if a code is not set, you can observe conditions that may be causing false activation complaints.

Scoping wheel bearings is another way to diagnose wheel speed sensor issues. The pattern on the scope can show the condition of the sensor and encoder ring.



More About KYOCM:

Located in industrial area of the Zhaozhuang Industry Park in Linqing, Shandong, Kaiyou Bearings Co., Ltd. is a professional bearing manufacturer and exporter with nearly 20-year experience. The products have reached the international advanced level with advanced production technology and modernized measuring management. Products are widely used in electrical and mechanical trades, the farm machinery industry, the automobile industry and all kinds of transmission facility manufacturing extensively. The products have a good sale in domestic and international dozens of country or region. Companies with the “integrity-based, quality firs” as the operational concept.


2023 New Week Hot Products Recommended:

Cylindrical Roller Bearing:

KYOCM cylindrical roller bearings can meet the challenges of applications faced with heavy radial loads and high speeds. Accommodating axial displacement (except for bearings with flanges on both the inner and outer rings), they offer high stiffness, low friction and long service life. KYOCM cylindrical roller bearings include single row cylindrical roller bearings, double row cylindrical roller bearings and four row cylindrical roller bearings.


Cylindrical roller bearings are also available in sealed or split designs. In sealed bearings, the rollers are protected from contaminants, water and dust, while providing lubricant retention and contaminant exclusion. This provides lower friction and longer service life. Split bearings are intended primarily for bearing arrangements which are difficult to access, such as crank shafts, where they simplify maintenance and replacements.