Code result
C051A
Left Rear Wheel Speed Sensor - Mechanical
High severity
What it means
Left Rear Wheel Speed Sensor - Mechanical: a mechanical fault is present — typically a damaged tone ring, excessive air gap, or loose mounting. Wheel-speed signals feed ABS, ESC, traction control and the speedometer.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Tone ring damaged
highOne of the most commonly reported causes for this code — check this first.
Related help
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