6 Causes of VSA System Indicator Light Comes On
There are several different possible reasons behind the illumination of a vehicle’s VSA light. Understanding the potential causes of such an issue can prove key when attempting to diagnose the root cause of such failures.
The following are several of the most common causes of a newly illuminated VSA light.
#1 – ABS-Related Issues
As previously mentioned, a vehicle’s ABS system plays an integral part in VSA operation. If one or more wheel speed sensors fail, or if an ABS module were to prove faulty, VSA system functionality will suffer. This will almost certainly result in the disabling of all VSA functions.
#2 – Faulty Wheel Speed Sensors
Automotive wheel speed sensors have served as standard equipment on most vehicles for decades, and their list of integrated uses is quite lengthy.
Therefore, the failure of one or more of these sensors can lead to the illumination of a vehicle’s VSA light.
#3 – Compromised Steering Angle Sensor
Many late model vehicles now utilize steering angle sensors, to rationalize the angularity of a skid, in comparison to brake related function. If these sensors have become compromised in any manner, a vehicle’s VSA is likely to illuminate, while the VSA function is simultaneously disabled.
#4 – Low Tire Pressure
If your vehicle’s tires are not equally inflated, or inflated as specified by your vehicle’s manufacturer, the illumination of the vehicle’s VSA light might result. This stems from the fact that tires of unequal tire pressures tend to spin at different speeds from one another, thereby producing erroneous wheel speed readings.
#5 – VSA System Disabled
While this does not signify an actual problem, it does indicate that the affected vehicle’s VSA system is inactive, thereby failing to provide the level of protection otherwise afforded.