OBD-II code · Chassis
C050E Left Rear Wheel Speed Sensor A Circuit Low
Left-rear WSS A signal voltage below expected range. 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 C050E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
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
- Parts involved
- Wss Lr, Sensor Wiring
Related codes
- C0661Left Rear Wheel Speed Sensor B Circuit Low
- C050BRight Front Wheel Speed Sensor A Correlation
- C050CLeft Rear Wheel Speed Sensor A Circuit/Open
- C050DLeft Rear Wheel Speed Sensor A Range/Performance
- C050FLeft Rear Wheel Speed Sensor A Circuit High
- C0510Hill Hold Function Disabled
- C0511Left Rear Wheel Speed Sensor A Correlation
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.