C0050: Right Rear Wheel Speed Sensor Circuit Malfunction
Standardized SAE J2012 code · C00xx codes
Safety-critical system. Faults in airbags, brakes, steering or high-voltage components can put people at risk. Follow the manufacturer's service information and safety procedures, or have the vehicle checked by a qualified workshop.
What does C0050 mean?
The ABS control module has detected a fault in the right rear wheel speed sensor circuit. Loss of wheel speed information disables ABS and stability control, and a separate ABS warning lamp is illuminated.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Common causes
- High Wheel speed sensor failed
- Medium Tone ring damaged or contaminated
- Medium Wiring break or chafe under chassis
- Low Wheel hub bearing with integrated sensor ring failed
Likelihood is a general estimate across vehicles; your make and model may differ.
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