OBD-II code · Chassis
C050A Right Front Wheel Speed Sensor A Intermittent/Erratic
Intermittent signal from right-front WSS A. 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 C050A?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyConnector loose or chafed wiring
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
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
- 0.5–2 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Wss Rf, Sensor Wiring
Related codes
- C065CRight Front Wheel Speed Sensor B Intermittent/Erratic
- C0507Right Front Wheel Speed Sensor A Range/Performance
- C0508Right Front Wheel Speed Sensor A Circuit Low
- C0509Right Front Wheel Speed Sensor A Circuit High
- C050BRight Front Wheel Speed Sensor A Correlation
- C050CLeft Rear Wheel Speed Sensor A Circuit/Open
- C050DLeft Rear Wheel Speed Sensor A Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.