Right Rear Wheel Speed Sensor Signal Erratic
Erratic pulses from the right rear wheel speed sensor. Wheel-speed signals feed ABS, ESC, traction control, transmission and odometer — a single dropped signal disables all of these safety functions until repaired.
Affected components
- Wheel speed sensor rr
- Tone ring
- Hub bearing
Common causes
- High likelihood: Encoder ring contaminated
- Medium likelihood: Tone ring cracked
- Low likelihood: Connector with intermittent contact under vibration
Possible symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.