OBD-II code · Chassis
C050B Right Front Wheel Speed Sensor A Correlation
Right-front WSS A reading does not correlate with the other wheel speed sensors during straight-line driving. Wheel-speed signals feed ABS, ESC, traction control, transmission and odometer — a single dropped signal disables all of these safety functions until repaired.
Is it safe to drive with C050B?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor or tone ring drifted
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Wss Rf
Related codes
- C065DRight Front Wheel Speed Sensor B Correlation
- C0508Right Front Wheel Speed Sensor A Circuit Low
- C0509Right Front Wheel Speed Sensor A Circuit High
- C050ARight Front Wheel Speed Sensor A Intermittent/Erratic
- C050CLeft Rear Wheel Speed Sensor A Circuit/Open
- C050DLeft Rear Wheel Speed Sensor A Range/Performance
- C050ELeft Rear Wheel Speed Sensor A Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.