What is the Yaw Rate Sensor all about?

One of the most important systems on the modern car is the stability control system. This is designed to help prevent rollovers, and is tied into the traction control system. One of the most vital components of your stability system is the yaw rate sensor, which is also called a rotational speed sensor.

Its function is relatively straightforward – it measures a vehicle’s angular velocity on its vertical axis. Simply stated, it measures how far your vehicle is tilting in a turn. Information from your yaw rate sensor is delivered to the car’s computer, where it is used to determine if too much yaw is present. If too much yaw is detected, the computer can automatically apply the right braking pressure to one or more wheels, or adjusting engine performance to correct the problem. This makes sure your vehicle continues travelling in the direction you point the steering wheel.

Keep in mind:

• The yaw rate sensor is generally located under the driver front seat.
• A scan tool is required to troubleshoot the yaw sensor, allowing the technician to accurately monitor its operation and check for related trouble codes.
• A yaw sensor may require recalibration if it is disconnected for any reason.

How it's done:

• The center console lower panel is removed from the center of the dash
• The defective Yaw Rate Sensor is removed from the center console location
• The new Yaw Rate Sensor is installed into the center console location
• The center console panel is reinstalled into the center of the dash
• The Yaw Rate Sensor is tested for proper operation and the vehicle is road tested for proper operation

Our recommendation:

Your yaw rate sensor is a vital piece of safety equipment and if it is malfunctioning, your stability control system will not operate correctly. While this will not render your vehicle unusable, it is important to have the problem diagnosed and repaired by one of our expert mechanics. A new yaw rate sensor will also need to be calibrated after installation.

What common symptoms indicate you may need to replace the Yaw Rate Sensor?

• Stability Control System light is on
• Stability Control System light comes on intermittently

How important is this service?

In order for your stability control system to operate correctly, your yaw rate sensor must be in good working order. While this will not automatically present a safety issue in most cases, it is important to have the problem diagnosed quickly.