C0667Right Rear Wheel Speed Sensor B Range/Performance
- Generic OBD-II code · Chassis
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- C0667 reports that the second right rear speed signal arrives but is not plausible, while the circuit itself is fine. No maker documents the code. At the rear axle the air gap can change while driving. A Ford patent observes that on semi-floating axles the shaft can deflect by more than 0.5 mm, enough to push a Hall sensor out of range of its tone ring so the signal turns wrong or vanishes, especially on the more heavily loaded side in a turn. On non-driven rear axles with two tapered roller bearings, Schaeffler requires the bearing clearance to be set by the maker's specification; too much play spreads the load unevenly and makes the hub less rigid, which can likewise disturb the gap. Faults that come with load or cornering point in this direction.
- What you may notice
- Warning mainly with load, towing or in fast bends
- Stability control functions temporarily withdrawn
- Likely causes
- LikelyWorn or wrongly adjusted wheel bearing letting the gap vary
- PossibleAxle shaft deflection under load or a bent shaft
- PossibleSensor not fully seated in its bore
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.