The anti-lock brake system (ABS) differential speed sensor transmits the speed of the differential ring gear to the ABS control module. The control module calculates the vehicle speed using this data.
Symptoms of Wear or Failure
- Illumination of the ABS warning light
- Improper ABS activation
Related Repair Advice
- Not all vehicles with ABS have an ABS differential sensor. Some vehicles utilize individual wheel sensors instead of a single differential mounted sensor.