C0220 C0xxx · Chassis (C) High severity
Right Rear Wheel Speed Sensor Circuit
Right rear wheel speed signal lost. ABS and stability functions disabled until all four wheels report reliably.
Severity guidance: High — stop driving and diagnose now; risk of further damage
Symptoms you will notice
- ABS lamp on
- No ABS intervention
- Possible speedometer dropout
Common causes
Ordered from most to least likely — start at the top.
- 1 Failed sensor
- 2 Damaged tone ring
- 3 Worn hub bearing
- 4 Wiring break at the flex point
How to diagnose it
Cheapest and least invasive first — most of these codes are not a parts problem.
- ✓ Compare live wheel speeds and identify the outlier.
- ✓ Check hub play before replacing the sensor.
- ✓ Inspect the harness where it flexes with the suspension.
- ✓ Scope the signal while rotating the wheel.
Repair options
- Replace the sensor
- Replace the hub if bearing wear is present
- Repair the wiring
C0220 — frequently asked questions
One wheel reads zero at a standstill — is that normal? +
Yes until you roll. Compare at walking pace; a sensor that stays at zero is faulty.
Can I fit a cheap aftermarket sensor? +
You can, but wheel speed sensors are a safety input. Use a quality part with the correct air gap.
Confirm the diagnosis before you buy parts
Send us the code, freeze-frame data and the vehicle — our engineers will tell you what to test first.